cpg meter station guidelines

7/21/2019 Cpg Meter Station Guidelines

http://slidepdf.com/reader/full/cpg-meter-station-guidelines 1/78

CPG Meter Station Design Guidelines

Columbia Pipeline Group

Meter Station Design Guidelines

Revised: February 27, 20!



Revision Date: Revision By: Description of Revision:"#$0#" R%M revised meter bypass language and &onverted '(P to

CPG pro&edures2#27#! )* Reed Se&tion *!*+ C-anged Pro&edure 70*00*0"+ to 70*00*0$*



$* S./.G CR.1(R.% ************************************************************************************************************ +

Contents

1 SCOPE............................................................................................................................................. 1

* ')(C1.3(S ********************************************************************************************************************** *2 '4(RS5.P %D D.3.S.' 'F R(SP'S.).6.1.(S **************************************************** 2

*2* CPG Meter Stations***************************************************************************************** 2*2*2 Customer Meter Stations ********************************************************************************* 2*2*$ Flo Control and Custody 1rans8er 'perations ********************************************** 2

*$ G%S C'D.1.'.G ********************************************************************************************************* $

GE!ER"# DES$G! RE%&$REME!'S........................................................................................... (

2* 6%4S, R(G96%1.'S, C'D(S %D S1%D%RDS ******************************************************* $

2*2 PR.M%R D(S.G R(;9.R(M(1S ******************************************************************************* $

2*2* Design Draing Re<uirements************************************************************************ "2*2*2 Do&umentation ************************************************************************************************ "2*2*$ Flo Rates******************************************************************************************************* "2*2*" Flo Metering ************************************************************************************************** "2*2*! Meter )ypass*************************************************************************************************** !2*2*+ Flo Control **************************************************************************************************** !2*2*7 Remote S-ut.n *********************************************************************************************** !2*2*= Design Pressure ********************************************************************************************** !2*2*> Design 1emperature **************************************************************************************** +2*2*0 Gas ;uality ****************************************************************************************************** +2*2* 'dori?ation ****************************************************************************************************** 72*2*2 )iDire&tional Meter Stations *************************************************************************** 72*2*$ Meter Run (nd Closures ********************************************************************************* 72*2*" Pipeline 1aps *************************************************************************************************** 72*2*! %utomati& S-uto88 3alves ******************************************************************************** 72*2*+ C-e&@ 3alves*************************************************************************************************** 7

2*$ M(1(R S1%1.' S.1( ****************************************************************************************************** 7

2*$* 6o&ation Considerations ********************************************************************************** 72*$*2 Site Preparation *********************************************************************************************** =2*$*$ Paving and Sideal@s ************************************************************************************* =2*$*" 6ands&aping **************************************************************************************************** >2*$*! Fen&ing ************************************************************************************************************ >

2*" )9.6D.GS#(C6'S9R(S *********************************************************************************************** >

2*"* General Re<uirements R19 or C-romatograp- )uilding AGeneral purpose Bno -ig- pressure gas ************************************************************************************ 0

2*"*2 General Re<uirements B (le&tri& (<uipment (n&losures *****************************

2*! (6(C1R.C%6 .S1%66%1.'S ***************************************************************************************

2*!* %rea Classi8i&ation ***************************************************************************************** 2*!*2 Grounding ****************************************************************************************************** 22*!*$ 6ig-ting ********************************************************************************************************** $2*!*" (le&tri&al .nstallations ************************************************************************************ $2*!*! Conduit and 4ire Si?es ********************************************************************************* "2*!*+ 6oad Centers ************************************************************************************************* !2*!*7 1ransient %C Poer and 1ele&ommuni&ations 3oltage Surge Suppression !

( OR$)$CE ME'ERS......................................................................................................................... 1*



!*$*2 Stati& Pressure ********************************************************************************************** 2+

$** )eta Ratio ****************************************************************************************************** +$**2 'ri8i&e Di88erential ****************************************************************************************** +$**$ Multiple 'ri8i&e Meter Runs *************************************************************************** +$**" Single 'ri8i&e Meter Runs****************************************************************************** +

$*2 'R.F.C( M(1(R 19)(S ************************************************************************************************* +

$*2* Meter 1ube Minimum Dimensions and Con8iguration *********************************** +

$*2*2 'ri8i&e Fittings************************************************************************************************ 7$*2*$ 'ri8i&e Plates ************************************************************************************************* 7$*2*" Flo Conditioners ****************************************************************************************** 7$*2*! Pipe**************************************************************************************************************** 7$*2*+ Flanges ********************************************************************************************************** 7$*2*7 S-op 1esting and .nspe&tion ************************************************************************* =

$*$ 'R.F.C( M(1(R .S1R9M(1%1.' ************************************************************************** =

$*$* Stati& and Di88erential Pressure ********************************************************************* >$*$*2 Floing Gas 1emperature ***************************************************************************** >

$*" .S1%66%1.'***************************************************************************************************************** >

$*"* General %rrangement ************************************************************************************ >$*"*2 Supports ******************************************************************************************************** 20

$*"*$ .nlet and 'utlet 3alves ********************************************************************************** 20+ '&RB$!E ME'ERS ....................................................................................................................... ,

"* S./.G CR.1(R.% ************************************************************************************************************ 20

"** Multiple 1urbine Meter Runs ************************************************************************* 20"**2 Single 1urbine Meter Runs**************************************************************************** 2

"*2 19R).( M(1(R 19)(S************************************************************************************************ 2

"*$ 19R).( M(1(R .S1R9M(1%1.' ************************************************************************* 2

"*$* 1urbine Meter 'utput ************************************************************************************ 2"*$*2 Stati& Pressure ********************************************************************************************** 2"*$*$ Floing Gas 1emperature ***************************************************************************** 22

"*" .S1%66%1.'***************************************************************************************************************** 22

"*"* General %rrangement ************************************************************************************ 22"*"*2 Supports ******************************************************************************************************** 22"*"*$ .nlet and 'utlet 3alves ********************************************************************************** 22"*"*" Meter Prote&tion ******************************************************************************************** 22"*"*! Strainer ********************************************************************************************************** 22"*"*+ Proving ********************************************************************************************************** 2$"*"*7 1urbine Module 6i8ting Me&-anism *************************************************************** 2$"*"*= %utomati& oiler *********************************************************************************************** 2$

* &#'R"SO!$C ME'ERS................................................................................................................ (

!* S./.G CR.1(R.% ************************************************************************************************************ 2$

!** Multiple 9ltrasoni& Meter Runs ********************************************************************* 2"!**2 Single 9ltrasoni& Meter Runs ************************************************************************ 2"

!*2 961R%S'.C M(1(R 19)(S **************************************************************************************** 2"

!*2* 1-rottling Devi&es ****************************************************************************************** 2"!*2*2 Pipe**************************************************************************************************************** 2"!*2*$ Flanges ********************************************************************************************************** 2!!*2*" %uiliary Conne&tions ************************************************************************************ 2!!*2*! S-op 1esting and .nspe&tion ************************************************************************* 2!

!*$ 961R%S'.C M(1(R .S1R9M(1%1.' ***************************************************************** 2+

!*$* 9ltrasoni& Meter 'utput********************************************************************************* 2+



=*7*" Sa8ety#Relie8 3alve .nstallation ********************************************************************** "

=*= R(M'1( S591'FF 3%63( ******************************************************************************************** "2

=*=* Remote S-uto88 3alves AStation .solation 3alve ****************************************** "2

!*$*$ Floing Gas 1emperature ***************************************************************************** 27

!*" .S1 %66%1.'***************************************************************************************************************** 27

!*"* General %rrangement ************************************************************************************ 27!*"*2 Supports ******************************************************************************************************** 27!*"*$ .nlet and 'utlet 3alves ********************************************************************************** 2=

- POS$'$E D$SP#"CEME!' ME'ERS ......................................................................................... /

+* M(1(RS *************************************************************************************************************************** 2=

+** Si?ing Criteria ************************************************************************************************ 2=+**2 Multiple Rotary Meters*********************************************************************************** 2=+**$ Single Rotary Meter Runs ***************************************************************************** 2>+**" S-op 1esting and .nspe&tion ************************************************************************* 2>

+*2 .S1

+*2*

%66%1.'***************************************************************************************************************** 2>

General %rrangement ************************************************************************************ 2>+*2*2 Piping************************************************************************************************************* 2>+*2*$ Supports ******************************************************************************************************** 2>+*2*" .nlet, 'utlet and )ypass 3alves 8or Single Rotary Meter Setting ****************** +*2*! Strainer ********************************************************************************************************** $0+*2*+ Prover Conne&tions *************************************************************************************** $0

+*2*7 'verRange Prote&tion ********************************************************************************** $0

+*$ R'1%R M(1(R .S1R9M(1%1.' ************************************************************************** $0

+*$* Rotary Meter Pulse 'utput **************************************************************************** $0+*$*2 Stati& Pressure ********************************************************************************************** $0+*$*$ Floing Gas 1emperature ***************************************************************************** $

0 )#O "!D PRESS&RE CO!'RO# ............................................................................................ (1

/ DE)$!$'$O!S ................................................................................................................................ (1

=* M(1(R R9 S(;9(C.G ******************************************************************************************* $2

=** Meter Run Se<uen&ing 3alves ********************************************************************** $$=**2 3alve %&tuators ********************************************************************************************* $$

=*2 F6'4 C'1R'6 ************************************************************************************************************* $$

=*2* Flo Control 3alves*************************************************************************************** $$=*$ PR(SS9R( C'1R'6**************************************************************************************************** $"

=*$* Pressure Control 3alves ******************************************************************************** $"=*$*2 Regulation )ypass***************************************************************************************** $!

=*" C'1R'6 3%63( S./.G %D S(6(C1.'***************************************************************** $!

=*! C'1R'6 3%63( .S1%66%1.' ********************************************************************************* $!

=*!* General ********************************************************************************************************** $!=*!*2 Piping************************************************************************************************************* $!

=*+ '3(RPR(SS9R( PR'1(C1.' *********************************************************************************** $+

=*+* Criteria 8or 'verpressure Prote&tion************************************************************** $+=*+*2 Sele&tion o8 'verpressure Prote&tion Devi&es ********************************************** $7

=*+*$ Monitored regulator settings ************************************************************************** $7=*+*" 'ver Pressure S-utdon 3alves ASe&urity 3alves ************************************** $=

=*7 S%F(1#R(6.(F 3%63(S E '3(R PR(SS9R( PR'1(C1.' *********************************** $>

=*7* Sele&tion ******************************************************************************************************** $>=*7*2 Set Pressure ************************************************************************************************** $>=*7*$ Relieving Capa&ity ***************************************************************************************** "0



*$*"*$*!

Flanged &onne&tions ************************************************************************************* !24elding********************************************************************************************************** !$

=*> F6'4 D.R(C1.' 3%63( ********************************************************************************************** "2

=*>* Remote 8lo dire&tion valves************************************************************************* "2

2 $!S'R&ME!'"'$O! .................................................................................................................... +(

>* PR'C(SS .S1R9M(1 C'(C1.'S ******************************************************************** "$

>** Pressure Sensing Conne&tions A't-er t-an at 'ri8i&e Fittings ******************** "$

>**2 1emperature Sensing Conne&tions *************************************************************** "">**$ Sample Conne&tions ************************************************************************************* ""

>*2 1R%SM.11(RS ************************************************************************************************************** "!

>*2* Multi3ariable 1ransmitters 8or Stati& Pressure, Di88erential Pressure E1emperature ************************************************************************************************** "!

>*2*2 1ransmitters 8or Stati& Pressure 'nly *********************************************************** "!>*2*$ 1emperature Sensing (lements AR1Ds ****************************************************** "+

>*$ C'1R'66(RS *************************************************************************************************************** "+

>*$* 1ube Sit&-ing Control ********************************************************************************* "+>*$*2 6imit Sit&-es************************************************************************************************ "+>*$*$ Flo Control ************************************************************************************************** "+>*$*" Pressure Control******************************************************************************************** "+>*$*! Manual Control ********************************************************************************************** "+>*$*+ %utomati& 'verRide Control ************************************************************************ "7

>*" 'D'R./%1.' ***************************************************************************************************************** "7

>*! G%S S%MP6.G *************************************************************************************************************** "7

>*+ .S1R9M(1 G%S S9PP6:******************************************************************************************* "7

1, E#EC'RO!$C ME"S&REME!' "!D 'E#EME'ER$!G ............................................................ +/

0* F6'4 C'MP91(RS******************************************************************************************************** "=

0** General Re<uirements ********************************************************************************** "=0**2 CPG R19 1ypes******************************************************************************************** "=

0*2 G%S ;9%6.1 D(3.C(S ************************************************************************************************* "=

0*2* C-romatograp-********************************************************************************************** "=0*2*2 Moisture analy?er ****************************************************************************************** ">

0*2*$ 5ydrogen sul8ide******************************************************************************************** ">0*2*" 'ygen sensors********************************************************************************************* ">0*2*! 't-er Devi&es ************************************************************************************************ !0

0*$ 1(6(M(1(R.G ************************************************************************************************************** !0

0*" P'4(R S9PP6 ************************************************************************************************************* !0

0*"* 9PS System ************************************************************************************************** !0

11 3"RD P$P$!G "!D 4E"DERS .................................................................................................... *,

* D(S.G PR(SS9R( %D 1(MP(R%19R( ****************************************************************** !0

*2 P.P( S./.G ********************************************************************************************************************* !0

*2* Station Main Gas Piping ******************************************************************************** !*2*2 Regulation E Measurement 5eaders ************************************************************ !

*2*$ Station )ypasses ******************************************************************************************* !*2*" Meter 1ube .nlet#'utlet Piping*********************************************************************** !*2*! 't-er Considerations************************************************************************************* !

*$ G((R%6 P.P.G D(S.G ********************************************************************************************* !2

*$* Con8iguration#6ayout ************************************************************************************* !2*$*2 5eader Con8iguration ************************************************************************************ !2*$*$ Piping************************************************************************************************************* !2



*$*+ Pressure 1esting ******************************************************************************************* !"*$*7 3alves ************************************************************************************************************ !!*$*= )ran&- Conne&tions ************************************************************************************** !+*$*> 5ot 1aps ******************************************************************************************************** !+

*" P.P.G M%1(R.%6S********************************************************************************************************* !7

*! C%15'D.C PR'1(C1.'*********************************************************************************************** !7

*!* .nsulating Flanges ***************************************************************************************** !7*!*2 Cat-odi& Prote&tion System ************************************************************************** !7*!*$ 1ubing.nsulating 9nions ******************************************************************************* !7*!*" Corrosion Coupons A.nternal ************************************************************************ !=*!*! Painting********************************************************************************************************** !=*!*+ Coating o8 )uried Piping ACPG 'ned or Cat-odi&ally Prote&ted ************** !=*!*7 Coating 5ot 1ap Flange ******************************************************************************** !>*!*= Corrosion Coupon 1est Station A(ternal **************************************************** !>*!*> 4eld 'ver Sleeves **************************************************************************************** !>*!*0 Con&rete Sleepers ***************************************************************************************** !>*!* )elo Grade to %bove Grade 1ransition******************************************************* !>*!*2 %bove Grade Pipe Supports************************************************************************** !>

1 )$#'ER5SEP"R"'ORS6 4E"'ERS "!D #$%&$D 4"!D#$!G .................................................. -,

2* F.61(R S(P%R%1'R******************************************************************************************************* +0

2** General ********************************************************************************************************** +02**2 Con8iguration ************************************************************************************************* +02**$ Per8orman&e ************************************************************************************************** +2**" Controls and .nstrumentation ************************************************************************ +

2*2 6.;9.D 6(3(6 S591'FF ************************************************************************************************ +2

2*$ PR'C(SS G%S 5(%1.G *********************************************************************************************** +2

2*$* .ndire&t Fired 5eaters ************************************************************************************ +22*$*2 Catalyti& 5eaters ******************************************************************************************* +$

2*" 4%1(R %D 5DR'C%R)' DR%.S ************************************************************************ +$

2*"* Drain Conne&tions ***************************************************************************************** +$

2*"*2 Drain Colle&tion Systems ****************************************************************************** +"2*"*$ 6i<uid Storage *********************************************************************************************** +"

1( "PPE!D$7 " 8 CPG S'"!D"RD DR"$!G #$S' ..................................................................... -*

1+ "PPE!D$7 B 5 M"'ER$"# SPEC$)$C"'$O!S ........................................................................... -*

1* "PPE!D$7 C 5 "PPROED M"'ER$"# #$S' ............................................................................ -*

1- "PPE!D$7 D 5 Meter 'esting and $nspection ........................................................................... -*

10 "PPE!D$7 E 1 8 Restriction Plate Si9ing 5 Rotary :eters....................................................... --

1/ "PPE!D$7 E 8 Restriction Plate Si9ing 5 'ur;ine Meters ..................................................... -0

12 "PPE!D$7 ) 5 Corrosion Control Procedures ......................................................................... -/

, "PPE!D$7 G 8 COR$O#$S ME'ERS ............................................................................................ -2

20* Si?ing Criteria ******************************************************************************************************************** +>

20*2 Coriolis Meter Runs E .nstallation ************************************************************************************* +>

20*$ Calibration E 1esting********************************************************************************************************* 70



1

1 SCOPE1-is Meter Station Design Guidelines do&ument applies to ne station design and&onstru&tion* 1-is do&ument does not apply to previously &onstru&ted and inservi&e 8a&ilities*

1-ese Meter Station Design Guidelines provide minimum re<uirements 8or t-e design,materials and &onstru&tion o8 meter stations 8or t-e measurement o8 gas delivered to or 8rom Columbia Pipeline Group ACPG pipelines* Companies delivering gas into orre&eiving gas 8rom CPG pipelines s-all -erea8ter be designated Customer*

Point o8 Delivery AP'D stations are lo&ations -ere CPG delivers gas to &ustomers*CPG ons and operates t-e tap valve on t-e CPG pipeline and t-e pipe on t-e CPGRig-to84ay AR'4* Generally, t-e &ustomer installs Ain t-e 8olloing order t-e stationpiping ada&ent to t-e CPG R'4, separator, measurement setting, 8lo &ontrol setting Ai8 re<uired, -eater Ai8 re<uired and overpressure prote&tion setting Ato prote&t t-e&ustomers donstream 8a&ilities*

Point o8 Re&eipt AP'R stations are lo&ations -ere CPG re&eives gas 8rom produ&ers ornona88iliated transmission &ompanies A&ustomers* CPG ons and operates t-e tap valve

on t-e CPG pipeline and t-e pipe on t-e CPG Rig-to84ay AR'4* Generally, t-eprodu&er installs Ain t-e 8olloing order separator, -eater Ai8 re<uired, overpressureprote&tion setting Ato prote&t CPGs donstream 8a&ilities, measurement setting, 8lo&ontrol setting Ai8 re<uired, and station piping to t-e CPG R'4*

Point o8 Re&eipt AP'R stations -i&- in&orporate ultrasoni& measurement settings A9SMs-all install t-e 9SM upstream o8 t-e overpressure prote&tion setting* C-e&@ valves and stati&pressure transmitters are typi&ally installed in t-e station piping donstream o8 t-emeasurement and overpressure prote&tion e<uipment but prior to t-e CPG R'4* 1-e &-e&@valve assures gas ill not ba&@8lo into t-e produ&ers pipeline* Furt-ermore, t-e pressuretransmitter ill provide CPG pressure sense on t-e CPG pipeline -i&- &ould be di88erentt-an t-e pressure sense on t-e meter setting Aunder &ertain &ir&umstan&es*

)e&ause o8 t-e ide variety o8 measurement 8a&ilities to -i&- t-ese guidelines apply and t-e&ontinuing advan&es in te&-nology and &-anging regulations, t-ese guidelines are ne&essarilygeneral, and are not meant to be a substitute 8or t-e appli&ation o8 good (ngineering udgmentto spe&i8i& design situations and must ad-ere to t-e appropriate CPG &ompany tari88* % CPGdesign engineer ill &ondu&t a revie o8 all design and draings*

Dis&ussions must be -eld it- t-e CPG (ngineering department be8ore any deviations8rom t-is guideline &an o&&ur*

1.1 OB<EC'$ES

1-ese guidelines are intended to ensure:• Minimal un&ertainty in &ustody trans8er gas measurement

• Department '8 1ransportation AD'1 Pipeline and 5a?ardous Materials Sa8ety

%dministration AP5MS% Code &ompliant 'verpressure Prote&tion A'PP

• Cost e88e&tive operation o8 t-e pipelines and related 8a&ilities in &omplian&eit- appli&able las, regulations, &odes and standards

• Sa8e or@ing &onditions 8or CPG and Customer personnel



1. O!ERS4$P "!D D$$S$O! O) RESPO!S$B$#$'$ES

Meter stations may be designed, &onstru&ted and oned by CPG or by Customer,or designed and &onstru&ted by CPG 8or t-e Customers a&&ount and oned by t-eCustomer* 1-e oners-ip o8 t-e 8a&ilities and t-e division o8 responsibilities 8or

design, &onstru&tion, operation and maintenan&e s-all be as pres&ribed by t-eappli&able &ontra&ts A%tta&-ments % and ) to t-e inter&onne&t agreement orinter&onne&t agreements beteen CPG and Customers* 1-e latest revision o8 t-eCPG Point o8 Delivery and Point o8 Re&eipt draings s-all be 8olloed unlessot-erise spe&i8ied in t-e Meter Set %greement AMS% beteen bot- &ompanies*

*2* CPG Meter Stations

Meter stations oned by CPG s-all be designed and &onstru&ted ina&&ordan&e it- t-ese guidelines, and s-all be operated andmaintained by CPG*

*2*2 Customer Meter Stations

Meter stations oned by t-e Customer, operated and maintained byCPG, s-all be designed and &onstru&ted to meet t-e re<uirements o8 t-ese guidelines*

• %ll meter station design &al&ulations and draings prepared by

Customer#Customers Design Firm s-all be revieed by CPGprior to 8abri&ation or &onstru&tion o8 t-e 8a&ilities* Su&- revieby CPG s-all in no ay diminis- Customers responsibility 8or&omplian&e it- t-ese guidelines, or it- all appli&able las,regulations, &odes and standards*

• Provision o8 t-is do&ument by CPG to Customer 8or Customers

use s-all in no ay diminis- Customers responsibility 8or&omplian&e it- all Federal, State, and 6o&al las, regulations,&odes, and standards as may be appli&able*

• CPG s-all be a88orded t-e opportunity to parti&ipate in s-op or

sour&e inspe&tions o8 meter tubes, ori8i&e 8ittings, ultrasoni&meters, and ot-er &riti&al materials and e<uipment items*

• CPGs %pproved 3endors s-all be used*

• Meter stations oned, operated and maintained by t-e Customer

s-all be designed and &onstru&ted to meet t-e re<uirements o8 t-e&urrent %G% spe&i8i&ations, and all P5MS% &odes*

• CPG s-all revie all design draings*

• CPG s-all be alloed to parti&ipate in itness testing o8 allmeter &alibrations and inspe&tions*

*2*$ Flo Control and Custody 1rans8er 'perations

For all meter stations, -et-er oned and operated by CPG or byCustomer, CPG s-all retain operational responsibility 8or 8lo &ontroland 8or operations related to &ustody trans8er as 8ollos:

• Calibration and testing o8 instruments 8or measurement o8 8lo



parameters and 8or re&ording and#or &omputation o8 8lo*

• .nspe&tion and &-anging o8 ori8i&e plates and inspe&tion o8 meter tubes*

• Colle&tion and analysis o8 gas samples and determination o8 gas

<uality parameters in&luding: spe&i8i& gravity, -eating value,

ater vapor &ontent, and e&essive amount o8 diluents su&- as52S, '2, 2 and C'2*

1.( G"S CO!D$'$O!$!G

Gas delivered to or 8rom CPG pipelines s-all be seet, &lean, dry, pipeline <uality gas,8ree o8 -arm8ul &ontaminants* 1-e spe&i8i& gas <uality re<uirements s-all &on8orm tot-e appli&able gas &ontra&ts or inter&onne&t agreements* Fa&ilities 8or de-ydration,seetening, stripping and ot-er gas &onditioning e<uipment t-at may be ne&essary toa&-ieve t-e re<uired gas <uality are beyond t-e s&ope o8 t-ese guidelinesH -oever,meter stations s-all in&lude appropriate e<uipment 8or gas <uality monitoring* SeeSe&tion 2*2*0, “Gas Quality”. Filter separators are &overed in Se&tion 2*, “Filter

Separator”.

GE!ER"# DES$G! RE%&$REME!'S1-is se&tion pres&ribes re<uirements generally appli&able to all types and si?es o8 meter stations*

.1 #"S6 REG&#"'$O!S6 CODES "!D S'"!D"RDS

Meter stations s-all be designed and &onstru&ted in a&&ordan&e it- all appli&ableFederal, State and lo&al las and regulationsH in a&&ordan&e it- all appli&ablepermitsH in a&&ordan&e it- t-e latest edition o8 t-e basi& &odes and standardslisted belo and in a&&ordan&e it- more spe&i8i& &odes and standards re8eren&ed

in su&&eeding se&tions o8 t-ese guidelines*

• 1itle "> CFR Part >2, I1ransportation o8 atural and 't-er Gas by

Pipeline: Minimum Federal Sa8ety StandardsJ AP5MS%

• %P. Manual o8 Petroleum Measurement Standards, C-apter " Iatural

Gas Fluids MeasurementJ

• %P. Manual o8 Petroleum Measurement Standards, C-apter 2 IFlo

Measurement 9sing (le&troni& Metering SystemsJ

• %S.#FP% 70, Iational (le&tri&al CodeJ

• %G% Catalog o* K600, IClassi8i&ation o8 6o&ations 8or (le&tri&al

.nstallations in Gas 9tility %reasJ• %G% Report umber $, 7, =, >, and 0

. PR$M"R3 DES$G! RE%&$REME!'S

Meter stations s-all be designed to implement t-e re<uirements 8or measurement,8lo &ontrol, pressure regulation, data a&<uisition, telemetering, odori?ation andot-er &onditions o8 t-e &ontra&tual arrangements beteen CPG and t-e Customer*



2*2* Design Draing Re<uirements

.nstallation draings submitted 8or CPGs revie s-all be o8 su88i&ients&ope and detail t-at a &ontra&tor &ould use t-em to install t-ee<uipment* 1-e 8olloing elements s-all be in&luded as a minimum:

• Plot plan s-oing lo&ation o8 all piping and e<uipment, to in&ludeprodu&tion e<uipment and pipeline inter&onne&t

• Piping draings it- elevations and se&tions as ne&essary to

8ully des&ribe t-e piping &on8iguration leading to and aay 8romt-e meter station

• Civil#Stru&tural Draings

• .nstrumentation diagram to s-o t-e inter&onne&tion o8 allmeasurement and &ontrol elements

• (le&tri&al s&-emati& and plot plan in&luding 5a?ardous 6o&ation

Plan*

•(le&tri&al#.nstrumentation 4iring Diagrams

• )ill o8 Material listing all e<uipment

2*2*2 Do&umentation

%ll e<uipment t-at CPG s-all on or operate s-all be a&&ompanied by:

• .nstallation, operation and maintenan&e manuals it- &ompleteparts lists and diagrams

• Certi8i&ation o8 -a?ardous area &omplian&e 8or all installede<uipment

• Dimensional draings o8 e<uipment

• Sa8ety#relie8 valve &apa&ity &al&ulations in&luding &onsiderationo8 inlet and outlet pressure losses and ba&@ pressure on valve&apa&ity and operational stability using CPGs relie8 valve&apa&ity &al&ulation program AS4R.Rev !*ls B Conta&t CPGengineering department

2*2*$ Flo Rates

1-e primary design parameter 8or any meter station is t-e 8lo rate* 1-emeter station must be designed 8or t-e epe&ted maimum, minimum andnormal 8lo rates* 1-e &riti&ality o8 maintaining uninterrupted 8lo is animportant design &onsideration*

2*2*" Flo Metering

Measurement s-all normally be a&&omplis-ed using ori8i&e meters,ultrasoni& meters, gas turbine meters, positive displa&ement meters or Coriolis meters*

• (le&troni& Flo Measurement A(FM and telemetry is re<uired8or all meter stations*

• Positive displa&ement rotary meters may be employed 8or 8lorates belo $,000 %CF#5 base volumes it- approval o8 CPG*



2*2*! Meter )ypass

% meter bypass s-all be installed at all meter stations* 1-is in&ludesmeasuring stations -ere a 8lo &annot be interrupted, b -i&- -aveonly a single meter run or & may -ave multiple meter runs*

%t a minimum, t-e bypass valve s-all be a 8ull port ball valve it- bodybleed valve t-at &an be used to &-e&@ 8or seat lea@age* 1-e bypassmust be lo&@ed s-ut during normal station operation* 4-ere pra&ti&al,t-e meter run bypass s-all be &on8igured it- to blo&@ valves andmeter run topor@s su&- t-at a 8langed spool pie&e &an be repla&edit- a meter in t-e 8uture*

2*2*+ Flo Control

%lt-oug- t-e Customer &an &ontrol 8lo in t-eir piping system, CPGreserves t-e rig-t to &ontrol 8lo into or out o8 t-e CPG piping system*Remote 8lo &ontrol e<uipment operated by CPG s-all be installed at allmeter stations designed 8or 8lo rates o8 0 mm&8d or greater, and may be

provided 8or smaller meter stations -ere re<uired by t-e spe&i8i&&onditions or &ontra&t re<uirements*

2*2*7 Remote S-ut.n

CPG re<uires t-e &apability o8 remote s-utin by CPG Gas Control o8 allinter&onne&t 8a&ilities it- 8lo rates greater t-an 0 mm&8d in ColumbiaGul8 1ransmission* 1-e remote s-utin valve s-all &onsist o8 a 8ull portball valve it- a&tuator it- snap a&tion 8ull open#8ull &lose &ontrol*

2*2*= Design Pressure

%ll meter station piping Aand ot-er pressure &ontaining &omponents s-all-ave a design pressure, and s-all be tested 8or a maimum alloableoperating pressure AM%'P e<ual to or greater t-an t-e -ig-est pressuret-e piping ill be sube&ted to*

• For any P'D meter station re&eiving gas 8rom a CPG pipeline,

t-e piping Aupstream o8 any pressure regulation s-all -ave adesign pressure and M%'P e<ual to or greater t-an t-at o8 t-eCPG pipeline* %ny piping donstream o8 pressure regulationt-at -as a design pressure or M%'P loer t-an t-at o8 t-e CPGpipeline s-all be prote&ted by suitable pressure limiting devi&esand#or se&urity valves* ARe8eren&e P5MS% Part >2*>!* 1-eCustomer is not permitted to use relie8 valves 8or overpressureprote&tion to pre&lude venting gas to atmosp-ere*

• For any P'R meter station delivering gas into a CPG pipeline,t-e piping s-all -ave a design pressure and M%'P e<ual to orgreater t-an t-at o8 t-e CPG pipeline* Suitable pressure limitingdevi&es and#or se&urity valves s-all be installed to prote&t t-emeter station, t-e CPG pipeline, and any %SM( &ode pressurevessels in&luded in t-e 8a&ility 8rom overpressure* ARe8eren&eP5MS% Part >2*>!* 1-e Customer is not permitted to userelie8 valves 8or overpressure prote&tion to pre&lude venting gasto atmosp-ere*



• %ll %SM( &ode vesselsL M%4P Amaimum alloable or@ing

pressure s-all be designed to 0 or more o8 t-e station or pipeline M%'P*

• Meter station gas piping s-all be based on a design 8a&tor o8

0*!0 in Class 6o&ations , 2 and $, and a design 8a&tor o8 0*" in

Class 6o&ation " in a&&ordan&e it- P5MS% Part >2**2*2*> Design 1emperature

Meter stations s-all be designed 8or t-e maimum and minimum gastemperatures AN20O to B20OF and 8or t-e maimum and minimumambient temperatures AN20O to B20OF* Consideration s-all be givento t-e ne&essity 8or gas -eating during lo ambient temperatures,parti&ularly 8or meter stations it- pressure regulation and 8orinstrument gas supply systems* %ll %SM( vessels s-all be designed8or a Minimum Design Metal 1emperature AMDM1 o8 B20OF*

1-e MDM1 is t-e loest ambient temperature Aper spe&i8i& appli&ation

lo&ation t-at an %SM( vessel is designed to en&ounter it-out ma@ingt-e vessels metal sube&t to brittle 8ailure*

2*2*0 Gas ;uality

Meter stations s-all be designed to ensure t-at gas delivered into anyCPG pipeline meets t-e gas <uality re<uirements o8 t-e CPG 1ari88 andt-e inter&onne&t agreement* 1-e meter station design s-all in&lude gas&onditioning e<uipment A8ilters, separators, de-ydrators, -eaters, et&*as ne&essary to ensure t-e re<uired gas <uality or as ot-erisere<uired in su&&eeding se&tions o8 t-ese guidelines*

• % 8ilterseparator is re<uired at any measuring station 8loing

more t-an ,000 Dt-#day and s-all be installed immediatelyupstream o8 t-e meter t-at delivers gas into a CPG pipeline*See Se&tion 2*, IFilter SeparatorsJ*

• % li<uid level s-uto88 devi&e may be installed immediately

upstream o8 any meter 8ourin&- or smaller, delivering gas into aCPG pipeline* See Se&tion 2*2 I6i<uid 6evel S-uto88JJ*

• %t t-e dis&retion o8 CPG, a &ontinuous gas sampler or

&-romatograp- may be re<uired at meter stations and s-all beinstalled at t-e time o8 t-e station &onstru&tion or a8terards 8or &ause* See Se&tion >*!, IGas SamplingJ and 0*2*IC-romatograp-sJ*

• 't-er devi&es 8or monitoring gas <uality su&- as moistureanaly?ers ASee Se&tion 0*2*2, et&* s-all be installed -erere<uired by t-e &ontra&t provisions or by ot-er spe&ial situations*

• Gas <uality monitoring s-all be installed at meter stations -ere

t-e gas sour&e is a treatment 8a&ility Aseetening, et&*, or -eret-e gas sour&e ot-erise -as t-e potential 8or delivering gasit- a -ydrogen sul8ide &ontent A52S, 'ygen A'2,itrogen

A2, Carbon Dioide AC'2 or ot-er &ontamination t-at e&eeds

t-e gas <uality re<uirements o8 t-e re&eiving pipeline* %ll su&-



monitors s-all be arranged to automati&ally s-ut in t-e meterstation in t-e event t-at t-e monitored parameterAs e&eedAspreset levels* See Se&tions 2*2*!, 0*2*" E 0*2*!

2*2* 'dori?ation

1-e meter station design s-all in&lude suitable 8a&ilities 8or t-e odori?ation

o8 gas -en su&- odori?ation is re<uired by t-e appli&able Meter Set %greement AMS%, &ontra&t or by Federal, State or lo&al regulations* SeeSe&tion >*",”Odorization”.

2*2*2 )iDire&tional Meter Stations

Meter stations re<uiring bidire&tional 8lo s-all -ave piping and valvesinstalled to allo gas 8rom eit-er dire&tion to be routed t-roug- t-emeter runs, gas &onditioning e<uipment, and 8lo &ontrol A-enpossible in only one dire&tion* 6imit sit&-es s-all be installed on allvalves used to route t-e gas and s-all be ired to t-e CPG 8lo&omputer so t-at 8lo dire&tion &an be determined* )idire&tional meter runs s-all not be installed it-out CPG approval* %ny gas &onditioning

e<uipment s-all treat t-e gas 8lo in bot- 8lo dire&tions*

2*2*$ Meter Run (nd Closures

%ll meter runs s-all -ave 8ull opening end &losures e<uipped it- sa8etybleeds to ensure t-at t-e &losure s-all not be opened under pressure*

2*2*" Pipeline 1aps

Consideration s-all be given to installing additional taps, -ere parallelCPG lines are present, 8or stations -ere 8lo &ontinuation is &riti&al or 8or &apa&ity &onsiderations. 1-e maimum design velo&ity t-roug- t-etap is limited to =0 8t#s at maimum 8lo and minimum pressure.

2*2*! %utomati& S-uto88 3alves

.n &ertain appli&ations, by agreement, valves s-all be installed 8or t-e solepurpose o8 s-utting in a measuring station based on &onditions su&- as-ig- moisture de point or -ydrogen sul8ide levels* 1-ese valves s-all bedesigned to remain s-ut until a CPG employee determines t-e &ondition-as abated and t-e valve &an be reset Aopened*

2*2*+ C-e&@ 3alves

C-e&@ valves s-all be installed in unidire&tional stations to pre&ludeba&@8lo -en upset &onditions o&&ur*

.( ME'ER S'"'$O! S$'E

2*$* 6o&ation Considerations

1-e sele&tion o8 a meter station site is &onstrained by t-e lo&ation o8 t-eCPG pipeline and t-e lo&ation -ere gas is to be delivered or re&eived*Final site sele&tion s-all be approved by CPG and s-all &onsider t-e8olloing*

• 1-e site s-ould be immediately ada&ent to t-e CPG pipeline



rig-to8ay* 4-ere t-is is not pra&ti&al, t-e site s-all be as&lose to t-e pipeline rig-to8ay as pra&ti&al* .8 t-e site is notimmediately ada&ent to t-e CPG pipeline rig-to8ay, t-enrig-to8ay ill -ave to be obtained 8or t-e pipeline &onne&tingt-e meter station to t-e CPG pipeline*

•1-e site s-all be a&&essible 8rom an all eat-er road A-enpossible*

• 1-e site must be large enoug- 8or t-e proposed meter station

8a&ilitiesH large enoug- to provide 8or ne&essary par@ing and 8ortru&@ and e<uipment a&&essH and large enoug- to provide bu88er ?ones beteen t-e above ground 8a&ilities and ada&entproperties in a&&ordan&e it- t-e &odes and standardsre8eren&ed -erein, and in a&&ordan&e it- lo&al ?oning andenvironmental regulations* 1-e site must be elevated i8ne&essary in Federal Flood ?one*

• 1-e site s-all be in a elldrained area, not sube&t to inundation*

(nvironmentally sensitive areas s-all be avoided -ere pra&ti&al*

• Sound pressure levels Anoise s-ould be &onsidered -ensele&ting t-e si?e and lo&ation o8 t-e station site*

2*$*2 Site Preparation

Meter station sites s-all be &leared and graded as re<uired toa&&ommodate t-e 8a&ilities and to provide 8or drainage* Considerations-all be given to leaving trees and ot-er natural vegetation in bu88er orperip-eral areas to provide s&reening, noise attenuation, and to redu&estorm ater runo88*

2*$*$ Paving and Sideal@s

%&&ess 8rom t-e nearest alleat-er road and par@ing 8or ve-i&les s-all

be prepared to provide all eat-er a&&ess* Sideal@s or pavements-all be provided 8or outside areas t-at are routinely a&&essed byoperating personnel*

• Pavement 8or ve-i&le a&&ess and par@ing may be &on&rete,

asp-alt, gravel or ot-er suitable material* Subgrade andpavement s-all be designed to a&&ommodate t-e -eaviestve-i&les epe&ted* %s a minimum, par@ing s-all be provided 8orat least one passenger ve-i&le Aautomobile or pi&@up tru&@*Par@ing may be inside or outside t-e meter station 8en&e* .8par@ing is outside t-e 8en&e, it must be on meter station propertyand &lear o8 publi& rig-to8ays*

• .8 odorant delivery tru&@s, va&uum tru&@s, or ot-er large ve-i&les

are epe&ted to visit t-e meter station site in t-e &ourse o8normal operations, t-en ade<uate par@ing and turnaroundspa&e s-all be provided 8or su&- ve-i&les* For sa8ety, Columbia&ompany poli&y re<uires driving 8orard out o8 par@ing spa&esA-i&- may re<uire ba&@ing into spa&es -ile par@ing ve-i&les*

• Sideal@s and ot-er outdoor al@ing areas may be &on&rete,gravel or &rus-ed stone and s-all be designed to provide



operating personnel it- sa8e and &onvenient a&&ess to buildingentries and to outside operating areas* Stiles and elevatedal@ays s-all be provided -ere ne&essary 8or &onvenientoperational a&&ess*

• %reas &overed it- gravel, &rus-ed stone or similar material

s-all be underlaid it- geotetile 8abri& to prevent t-e grot- o8 vegetation*

2*$*" 6ands&aping

ormally, lands&aping ill be limited to revegetating &leared andunpaved areas it- vegetation suitable 8or t-e lo&al area*

• .n a&&ordan&e it- t-e above Se&tion 2*$*2, ISite PreparationJ,

trees and ot-er natural vegetation may be le8t in bu88er orperip-eral areas to provide s&reening, noise attenuation, and toredu&e storm ater runo88*

• .8 site permits or lo&al agen&ies pres&ribe spe&ial lands&aping

re<uirements, t-en su&- re<uirements s-all be ad-ered to in lieu

o8 or in addition to t-at spe&i8ied -erein*

2*$*! Fen&ing

(a&- meter station site s-all be 8en&ed* 1-e 8en&ed area s-all be largeenoug- to en&lose all above ground 8a&ilitiesH to provide spa&e 8oroperational and maintenan&e a&&essH and to en&lose all &lassi8ied-a?ardous areas*

• 9nless ot-erise re<uired by site permits or lo&al &odes, t-e

8en&e s-all be a &-ain lin@ 8en&e, at least + 8eet -ig-, and toppedit- a t-reestrand barbed ire barrier*

• %t least one ve-i&le gate it- a minimum idt- o8 2 8eet, and atleast one pedestrian gate s-all be provided at all meter stations*Pla&ement o8 entran&es s-all provide a&&ess to all 8a&ilitiesit-in t-e 8en&ed area*

• Pedestrian gates s-all open outard*

• %ll gates s-all be e<uipped 8or lo&@ing it- a padlo&@*

• % arning mar@er in a&&ordan&e it- P5MS% Part >2*707 s-allbe pla&ed on t-e main entran&e gate* 1-e mar@er s-all s-ot-e name and emergen&y numbers o8 t-e meter station operator along it- t-e ot-er re<uired in8ormation*

• Pipe barriers ill be installed as ne&essary to prote&t e<uipment

8rom damage*

• Fen&ing s-all be grounded per CPG Grounding Standard

Draing ASee CPG Standard F% Draings*

.+ B&$#D$!GS=E!C#OS&RES

For spe&i8i& material re<uirements, please re8er to t-e latest revision o8 CPG DesignStandard DS"00+ (le&troni& Measurement and Gas C-romatograp- Spe&i8i&ations*



1o prote&t sensitive ele&tri&al and ele&troni& &omponents 8rom e&essive -eat andmoisture, meter stations t-at meet any o8 t-e 8olloing &onditions s-all -ave aal@in (FM building installed at stations utili?ing ele&troni& measuremente<uipment Ae&ept 6o Cost (le&troni& Measurement A6C(M appli&ations -ere(FM e<uipment is mounted dire&tly to measurement runs* Stations employing agas &-romatograp- re<uire a al@in building Aunless aived by CPG (ngineeringand 'perations*

2*"* General Re<uirements R19 or C-romatograp- )uilding AGeneralpurpose B no -ig- pressure gas

• )uildings s-all be o8 non&ombustible materials* Preengineered

or pre8abri&ated metal buildings are pre8erred, but masonrybuildings are a&&eptable* )uildings s-all &on8orm to t-e )uilding'88i&ials and Code %dministrators A)'C% ational )uildingCode, and to all appli&able lo&al &odes* Metal buildings s-all beinsulated and &on8orm to t-e Metal )uilding Manu8a&turers

%sso&iation IRe&ommended Design Pra&ti&es ManualJ*

• S@id mounted, pre8abri&ated insulated metal buildings arepre8erred and s-all -ave nons@id steel 8looring*

• %ll &-romatograp- buildings s-all be obtained 8rom CPG

approved vendors per CPGs spe&i8i&ation*

• C-romatograp- buildings s-all be designed 8or ere&tion on a&on&rete sonotube or pier 8oundations*

• )uildings s-all be properly grounded and all building ele&tri&al

installations s-all &on8orm to t-e re<uirements o8 Se&tion 2*!,I(le&tri&al .nstallationsJ*

• 1-e building s-all be ade<uately si?ed to a&&ommodate t-e&ontained e<uipment it- a minimum si?e o8 =0J by 20J 8or&-romatograp- and R19 -ousing* Minimum eve -eig-t s-all be=0J 8or bot- types o8 buildings*

• Doors s-all be lo&@able, e<uipped it- stainless steel -inges

and operable 8rom inside t-e building* %ny batteries it- t-e&apability o8 emitting -a?ardous or &orrosive gas s-all beinstalled in a bo it- t-e batteries vented outside o8 t-ebuilding* Re&ombinant batteries do not need to be vented*

• 4-ere &ommer&ial poer is available, t-e building s-all -ave a

standard 00 amp poer servi&e, a distribution panel, interiorlig-ting and to GFC. prote&ted duple re&epta&les*

• .8 lig-ting &annot be provided, meter#&-romatograp- buildings

must -ave indos or s@ylig-ts to provide ade<uate lig-t insidet-e building during t-e day*

• 4-ere non&lassi8ied ele&tri&al e<uipment is to be installed

inside t-e building, t-e building s-all be lo&ated outside&lassi8ied -a?ardous areas*

• C-romatograp- and R19 buildings s-all be e<uipped it- an

53%C unit -ere possible* .8 poer is not available, t-e building



s-all -ave properly lo&ated s&reened vent louvers o8 su88i&ientnumber and si?e to provide 8res- air 8lo into t-e building*

• 1-e building s-all not be installed over meter runs* % &anopys-all be installed over ultrasoni& meter runs*

2*"*2 General Re<uirements B (le&tri& (<uipment (n&losures

%ll ele&troni& panels and en&losures s-all meet (M% " re<uirementsas a minimum and s-all -ave t-e 8olloing labels:

• % arning label spe&i8ying maimum internal voltage

• %n en&losure 8un&tion label, i*e*, R19 )rea@er Panel, .ntrinsi&

Sa8e (<uipment et&*

.* E#EC'R$C"# $!S'"##"'$O!S

%ll meter station ele&tri&al e<uipment and ele&tri&al installations s-all &on8orm tot-e re<uirements o8 t-e latest edition o8 %S.#FP% 70, “National Electrical Code” A(C, and to t-e 8olloing &odes and standards as a p p li ca bl e :

• %meri&an Petroleum .nstitute A%P.

• .nstitute o8 (le&tri&al and (le&troni&s (ngineers A.(((

• ational (le&tri&al Manu8a&turers %sso&iations A(M%

• ational Fire Prote&tion %sso&iation AFP%

• 9nderriters 6aboratory A96 and#or

• Canadian Standards %sso&iation ACS%

• Fa&tory Mutual AFM

2*!* %rea Classi8i&ation

%ll areas in a meter station s-all be &lassi8ied in a&&ordan&e it- (C %rti&le !00 and %G% Catalog K600, IClassi8i&ation o8 6o&ations 8or (le&tri&al .nstallations in Gas 9tility %reasJ*

.t must be understood t-at t-e 8olloing %G% de8initions are guidelinesonly Aas outlined by %G% Catalog K600* 1-ese guidelines s-all beused it- sound engineering udgment 8or 8inal determination o8-a?ardous area boundaries*

• 1-e -a?ardous area around a 8ull pipeline pressure vent andpoer gas vents is Div* . to a sp-eri&al radius o8 ! 8eet and Div*.. to a sp-eri&al radius o8 ! 8eet*

• 1-e -a?ardous area around all gas pro&ess valves and 8langes

in a nonen&losed, open, ade<uately ventilated area is Div* .. toa sp-eri&al radius o8 ! 8eet*

• 1-e -a?ardous area around gas pro&ess valves and 8langes in

an ade<uately ventilated building area is Div* .. to t-e etent o8 t-e interior o8 t-at building*



• 1-e -a?ardous area around gas pro&ess valves and 8langes in a

poorly ventilated building area is Div* . to t-e etent o8 t-einterior o8 t-at building*

• 1-e -a?ardous area around lopressure instrument vents in a

nonen&losed, open, ade<uately ventilated area is Div* . to a

sp-eri&al radius o8 *! 8eet and Div* .. a sp-eri&al radius o8 !8eet*

• 1-e -a?ardous area around a pig trap vent valve and door is

Div* . to a sp-eri&al radius o8 ! 8eet and Div* .. to a sp-eri&alradius o8 ! 8eet*

• 1-e interior o8 a transmitters prote&tive en&losure s-all be

de8ined as Class , Group D, Division .. i8 all routine transmitterventing o8 -ydro&arbons is &arried to t-e outside o8 its en&losure*.n addition, t-e en&losure s-all be ade<uately ventilated ina&&ordan&e it- Se&tion 2*"*2, IGeneral Re<uirements B(le&tri&al (<uipment (n&losureJ*

•

1-e area outside t-e meters transmitter en&losure s-all be aClass , Group D, Division .. area, unless a Division &lassi8i&ation is re<uired by ot-er e<uipment or 8a&ilities in t-earea* 1-e &lassi8ied area s-all etend to at least *! 8eetsp-eri&al radius in all dire&tions 8rom t-e en&losure* ASee PCo8 %G% Catalog K600*

• 1-e (FM )uilding s-all not be lo&ated in a Class , Group D,

Division area* 1-e meter building may be lo&ated in a Class ,Group D, Division .. area '6 .F %66 (6(C1R.C (;9.PM(14.15. 15( )9.6D.G M((1 15( R(;9.R(M(1S F'RD.3.S.' .. 5%/%RD'9S %R(%* .8 so pla&ed, t-e interior o8 t-e meter building s-all also be &lassi8ied Class , Group D,

Division ..*• %reas beyond t-e de8ined boundaries o8 -a?ardous areas are

un&lassi8ied*

2*!*2 Grounding

%ll buildings, stru&tures and e<uipment s-all be grounded in a&&ordan&eit- t-e appli&able &odes and standards to minimi?e e<uipmentdamage and personnel -a?ards 8rom lig-tning and ele&tri&al 8aults* ASee

%ppendi % 8or Standard Draings

• % grounding loop s-all be pla&ed around ea&- building and

around ot-er e<uipment stru&tures, it- $2 magnesium anodes

pla&ed at opposite &orners*

• Ground loop s-all be stranded, bare, minimum gauge 2#0

5M4P( &oated &opper iring*

• 1-e minimum si?e &ondu&tor to be used in a grounding loop is

2#0 %4G*

• 1-e minimum si?e grounding &ondu&tor to be used 8or

&onne&ting buildings and ot-er large stru&tures to t-e groundloop s-all be 2 %4G*



• %ll ele&tri&al e<uipment s-all be &onne&ted to t-e grounding grid

in a&&ordan&e it- (C %rti&le 2!0*

• %ll ele&tri&al &onne&tions made to t-e ground loop underground

s-all be made it- t-ermally 8used bonds Ae*g* QCadeldQ&onne&tions and su&- &onne&tions s-all be insulated using

QS&ot&- CastQ or e<uivalent spli&e insulation*2*!*$ 6ig-ting

4-ere lig-ting is provided 8or a meter station, t-e lig-ting design s-allprovide symmetri&al and uni8orm illumination 8or t-e various areas* %llsites it- 8lo &ontrol, -ere pra&ti&al, s-all -ave outdoor lig-ting it- asit&- or brea@er inside t-e R19 building*

1-e average illumination levels 8or spe&i8i& meter station areas s-all be as8ollos:

(FM )uilding 2! to $! &andle

(<uipment %rea Floodlig-ting 0 to ! &andle

'pen %rea Floodlig-ting ! to 0 &andle

• 'utdoor lig-ting s-all be 5.D luminaries it- metal -alide AM5

pre8erred* %ll 5.D luminaries s-all -ave -ig- poer8a&torballasts* )uilding interior lig-ting s-all &onsist o8 in&andes&entor 8luores&ent 8itures*

• %ll lig-ting 8itures s-all be suitable 8or operation in t-e-a?ardous area &lassi8i&ation in -i&- t-ey are installed*

2*!*" (le&tri&al .nstallations

%ll ele&tri&al installations s-all &on8orm to t-e re8eren&ed &odes andstandards and s-all be in a&&ordan&e it- t-e 8olloing minimumre<uirements:

• % &onduit run beteen pull points s-all not &ontain more t-an

t-e e<uivalent o8 t-ree one<uarter bends A270 degrees total*1-e radii o8 all &onduit bends s-all be in a&&ordan&e it- t-e&urrent (C spe&i8i&ations* %ll 8ield bends are to be made it-an approved &onduit bender*

• Conduits s-all be se&urely supported at intervals not e&eeding

0 8eet* 3erti&al, eposed risers s-all be supported at t-e topand bottom and at intervals not e&eeding 20 8eet* Conduit s-allbe 8irmly supported it-in $ to ! 8eet o8 any &onduit termination,su&- as at a &onduit 8itting, outlet body, un&tion bo, &abinet, or devi&e*

• Conduit 8ittings, devi&es, and un&tion boes s-all be installedit- openings 8a&ed outard, alloing 8ull interior a&&ess it-out



disassembly o8 &onduit or 8ittings*

• Poer and &ontrol &ir&uits 8or t-e same devi&e, Ae*g* 2"0 3

motor poer it- its 20 3%C &ontrols &an be installed in t-esame &onduitH -oever, all &ondu&tors in t-e same &onduit s-all-ave t-e same insulation level*

• %C and DC &ir&uits s-all not be pla&ed into t-e same &onduits*• .ntrinsi& sa8e &ir&uits s-all be routed in dedi&ated &onduits* on

intrinsi& sa8e iring s-all not be run it- intrinsi& sa8e &ir&uits*

2*!*! Conduit and 4ire Si?es

• 1-e minimum si?e 8or aboveground &onduit s-all be $#"Q*

Conduits running to devi&es it- a #2Q P1 &onne&tion s-all beredu&ed at t-e devi&e*

• Conduit installed underground s-all not be smaller t-an Q si?e

and s-all be installed at a minimum dept- o8 =J*

• Conduit s-all be -ot dipped galvani?ed steel* %ll &onduit installed

belo grade s-all be Robroy Red or Perma&oat P3C &oated or C6Kplasti& &oated* .n above ground installations -ere 8leibility isre<uired, t-e use o8 approved 8leible &onduits is permitted AinClass , Division areas use (C6 style &onduit* .n Class Division 2 areas use 6i<uid tig-t 8leible &onduit*

• %t buried &onduit &rossings it- 8oreign &ompany 8a&ilities, aminimum o8 8t separation is re<uired*

• Conduits buried in -ig-ly &orrosive soil &an be prote&ted by

en&asement in &on&rete* 1-e &on&rete s-all be &olored red 8oridenti8i&ation o8 ele&tri&al &onduit en&asement* Conduits buriedin areas o8 -eavy tra88i& &an be prote&ted by being &overed it-a &on&rete slab* 1-e &on&rete s-all be &olored red 8oridenti8i&ation o8 ele&tri&al &onduit underneat-*

• 4iring to be &onne&ted to &ompression type terminal strips s-all

be terminated it- ire 8errules* 4iring to be &onne&ted tos&re type terminal strips s-all be terminated it- 8or@ed tongueterminals*

• %ll iring s-all be labeled it- its net destination Ae*g*, 1S %

2!* 1-e iring s-all not be labeled it- its present lo&ation or its ultimate destination*

• Signal iring 8or &urrentloop A2ire or voltage A$ire

instrumentation transdu&ers s-all be = or + %4G, it-#drainire s-ielding* )elden >$= A= gauge or )elden >$+ A+gauge or e<ualT*

• Signal iring 8or R1D temperature sensors s-all be = or +

%4G it- 8oil#drain ire s-ielding* For &able distan&es to t-eR1D sensor less t-an !0 8eet, a $ire R1D is a&&eptable* .8 t-e&able distan&e is over !0 8eet, a "ire R1D is re<uired i8 t-easso&iated instrument ill a&&ommodate " ires )elden >$+!A= gauge or )elden >$++ A+ gauge or e<ualT*

• Signal iring 8or t-ermo&ouple temperature sensors s-all be 22



to = %4G tisted pair it- 8oil#drain ire s-ielding* 1-is &ables-all be t-ermo&ouple &ompensation, etension &able&ompatible it- t-e type t-ermo&ouple used* Copper ire s-allnever be used 8or t-ermo&ouple etension &able )elden >$+!A= gauge or )elden >$++ A+ gauge or e<ualT*

•Control iring 8or position, limit, pressure, temperature, or 8losit&-es s-all be = %4G minimum*

• Control iring 8or 2" 3DC solenoid valves s-all be a + %4G

Aor larger i8 ne&essary 8or voltage drop &onsiderations* %suppression diode s-all be installed a&ross t-e &oil o8 ea&-solenoid &ontrol valve at t-e valve*

• .n&lude 20 spare &ondu&tors to allo 8or 8uture needs*

• %ll ele&tri&al devi&es installed on a s@id s-ould -ave &onduits

installed and routed to a bul@-ead area at t-e edge o8 t-e s@id8or &ustomer &onne&tions in t-e 8ield*

2*!*+ 6oad Centers

% distribution panel s-all be installed at sites t-at use &ommer&ial poerand -ave an R19#C-romatograp- building* 1-e lig-ting distribution panels-all be single p-ase, minimum 00 %mp, = &ir&uit, and 2"0#20 volt*

• Cir&uit brea@ers 8or lig-ting &ir&uits and re&epta&les s-all be 20

volts, single pole, ! or 20 %mp rating based on asso&iatedloads or &apa&ity*

• 1-e lig-ting panel load &enter s-all be solidly grounded as per

Se&tion 2*!*2, IGroundingJ*

2*!*7 1ransient %C Poer and 1ele&ommuni&ations 3oltage Surge

Suppression

• 5eavy duty, industrial grade, surge suppressors s-all be installed onall in&oming %C poer and telep-one#tele&ommuni&ations &ir&uits*

• %C surge suppressors s-all be &onne&ted to a double pole 2"0

3%C, $0 %mp brea@er in t-e lig-ting load distribution &enter*Suppressor poer iring lead lengt-s to t-e brea@er s-all be@ept to 8t* lengt- or less 8or optimal surge prote&tion*

• (a&- surge suppressor s-all be solidly grounded to t-e stations

ground grid*

( OR$)$CE ME'ERS1-is se&tion des&ribes re<uirements 8or ori8i&e meters 8or measurement o8 natural gas*Meter tube assemblies, ori8i&e 8ittings and ori8i&e plates s-all be designed, 8abri&ated,tested and inspe&ted in a&&ordan&e it- all appli&able re<uirements o8 t-e latest edition o8

%G% Report umber $ and per t-e CPG Standard draings* CPG Design Standard DS8+,,( s>ould also ;e referenced



(.1 S$?$!G CR$'ER$"

1-e number and si?e o8 ori8i&e meter runs s-all be sele&ted to measure t-emaimum 8lo rate at t-e minimum pressure and t-e minimum 8lo rate at t-emaimum pressure, it- )eta ratios and di88erential pressures it-in t-e rangesspe&i8ied belo*

$** )eta Ratio

1ypi&ally, ori8i&e plate bores s-all be sele&ted to provide a )eta ratio int-e range o8 0*2 to 0*+0*

$**2 'ri8i&e Di88erential

Si?ing o8 meter tubes and ori8i&e plates s-all be su&- t-at t-e ori8i&edi88erential is it-in t-e range o8 0 to 200 in&-es o8 ater &olumn, over t-e range o8 spe&i8ied design 8lo rates*

$**$ Multiple 'ri8i&e Meter Runs

Multiple ori8i&e meter runs s-all be installed -ere ne&essary 8or t-emaimum design 8lo rates and as re<uired 8or turndon beteenmaimum and minimum 8lo rates* (&ept in &ases -ere etremeturndon ratios are re<uired or in ot-er spe&ial &ir&umstan&es, it ispre8erred t-at multiple ori8i&e meter runs be o8 t-e same si?e and&on8iguration* %utomati& tube sit&-ing s-all be provided 8or stationsit- multiple ori8i&e meter runs to automati&ally bring tubes on line, orta@e tubes o88 line as re<uired to maintain t-e ori8i&e di88erential in t-erange spe&i8ied in Se&tion $**2* Run se<uen&ing valves s-all bebutter8ly valves installed donstream o8 t-e ori8i&e meter in t-e metersnormal 8lo dire&tion* 9sing t-e outlet meter run blo&@ valve 8or runse<uen&ing is not re&ommended*

Multiple ori8i&e meter runs s-all be installed it- a ball valve bypass asspe&i8ied in Se&tion 2*2*!*

$**" Single 'ri8i&e Meter Runs

Single ori8i&e meter runs s-all be installed it- a ball valve bypass asspe&i8ied in Se&tion*2*2*!

(. OR$)$CE ME'ER '&BES

Meter tube &omponents s-all be manu8a&tured and meter tubes assembled andtested by an approved vendor &apable o8 ensuring t-at t-e &ompleted meter tubeassemblies meet all appli&able re<uirements o8 %P. MPMS "*$2 and %G% Report

umber $*

• %ll meter tube elds s-all be ground smoot- internally, to mat&- t-e&ontour o8 t-e pipe all*

$*2* Meter 1ube Minimum Dimensions and Con8iguration

Meter tube dimensions and &on8igurations s-all be as s-on on t-e



CPG Standard Draings Asee %ppendi % 8or Draing 6ist* 'nly meter run diameters s-on in t-e illustrations are permitted it-out priorapproval 8rom CPG* % drip pan and li<uid &olle&tion system s-all beprovided to &at&- li<uids t-at may 8all 8rom t-e ori8i&e 8itting*

$*2*2 'ri8i&e Fittings

'ri8i&e 8ittings s-all be eit-er single or dual &-amber as delineated in t-eCPG standard draings* 'ri8i&e 8langes ill not be permitted* DanielQSeniorJ ori8i&e 8ittings it- a eld end on t-e inlet and a male 8a&e8lange on t-e outlet are approved 8or use in = and 0J si?es* DanielSimple, 1MC' Sure S-ot, Canalta and Pre&ision Solo single &-amberori8i&e 8ittings are approved 8or use in 2, " and +J si?es*

• 'ri8i&e 8ittings s-all -ave a pressure rating suitable 8or t-e meter station design pressure and M%'P*

• 'ri8i&e 8ittings s-all be QtelemeteringQ type 8ittings -aving 8our pairs o8 di88erential pressure taps, tapped #2Q FP1*

$*2*$ 'ri8i&e Plates

'ri8i&e plates s-all be &on&entri&, s<uare edge ori8i&e plates &on8ormingto t-e re<uirements o8 %G%$#%P. "*$*2*

• 'ri8i&e plate material s-all be 1ype $0" stainless steel*

• 'ri8i&e plate t-i&@ness s-all be e<ual to t-e re&ommendedt-i&@ness given in 1able 2" o8 %P. "*$*2*

• 'ri8i&e plates s-all be stamped by t-e manu8a&turer it- a serialnumber assigned by CPG*

• 'ri8i&e plates s-all be &ompatible it- elastomer sealing units as

ell as &ompatible it- all &onstituents o8 t-e gas stream*

$*2*" Flo Conditioners

Flo &onditioners s-all be a Canada Pipeline %&&essories CP% !0(*

$*2*! Pipe

Pipe used in t-e 8abri&ation o8 meter tubes s-all be sele&t pipe, meetingt-e dimensional and sur8a&e 8inis- toleran&es o8 %P. MPMS "*$*2, andmanu8a&tured per %S1M Standard %0+ or %P. Spe&i8i&ation !6* 1-eall and grade pipe s-all be spe&i8ied to meet t-e design pressure and8a&tor*

$*2*+ Flanges

Flanges 8or meter tubes s-all be eld ne&@ 8langes, bored to mat&- t-emeter tube inside diameter*

• %ll 8langes s-all be raised 8a&e 8langes, e&ept t-at t-e 8lange

mating it- t-e male ori8i&e8itting 8lange s-all -ave a mating8emale 8lange to ensure a&&urate alignment*

• ormally 8langes s-all be %S1M %0! 8orged steel 8langes in

a&&ordan&e it- %SM(#%S. )+*!, IPipe Flanges and Flanged



FittingsJ* 4-ere %0! 8langes are to be elded to -ig- yieldstrengt- pipe, ASMS U $!000 psi 8lange -ubs s-all be spe&iallyprepared to develop t-e 8ull strengt- o8 t-e pipe* %lternately,8langes s-all be in a&&ordan&e it- MSS SP"", ISteel PipelineFlangesJ, and -ave a yield strengt- mat&-ing t-at o8 t-e pipe to-i&- t-ey are elded*

$*2*7 S-op 1esting and .nspe&tion

Meter tubes s-all be tested and inspe&ted in t-e 8abri&ators s-op ina&&ordan&e it- t-e re8eren&ed &odes and standards, % p p e n d i D, andas outlined in Se&tion *$*+, “Pressure Testing”.

CPG s-all be a88orded t-e opportunity to itness all o8 t-ese tests andinspe&tions -et-er t-e meter tubes are pur&-ased by CPG or by t-eCustomer* %ll tests and inspe&tions s-all be t-oroug-ly do&umentedand &opies o8 all test and inspe&tion reports s-all be 8urnis-ed to CPG*

• 1-e meter tube and ori8i&e 8itting s-all be inspe&ted to determine

t-e measured meter tube diameter and to &on8irm t-atdimensions and sur8a&e 8inis-es &omply it- Se&tion 2*! o8 %P.MPMS "*$*2*

• )ypass &-e&@s s-all be &ondu&ted in a&&ordan&e it- Se&tion

2*!*$*" o8 %P. MPMS "*$2 and CPGs I5ig- Pressure 'ri8i&ePlate 6ea@ 1estJ A%ppendi D, to establis- t-at t-ere is nolea@age a&ross t-e ori8i&e plate seal and no &ommuni&ation or lea@age beteen pressure taps* 1-e -ig-pressure nitrogenlea@ test is optional 8or 8a&ilities delivering into CPGs pipeline*

.n addition to do&umentation 8or tests and inspe&tions des&ribed above,

t-e 8abri&ator s-all provide &erti8i&ation t-at t-e meter tube assemblies&omply it- all appli&able re<uirements o8 %P. MPMS "*$*2, &erti8y t-atmaterials and 8abri&ation &omply it- P5MS% Part >2, and 8urnis-CPG it- &opies o8 radiograp-i& reports and ot-er appli&able <uality&ontrol do&uments* Fabri&ators s-all 8ill out an 'ri8i&e Meter 1ube.nspe&tion Report* ASee %ppendi D I'P Master Mi& S-eet Ane*lsJ *

(.( OR$)$CE ME'ER $!S'R&ME!'"'$O!

(le&troni& Flo Measurement A(FM s-all be employed at all ori8i&e meter stations*(a&- ori8i&e meter run s-all be e<uipped it- instrumentation to measuredi88erential pressure, stati& pressure and 8loing gas temperature 8or t-e

&omputation o8 8lo rate* General installation re<uirements are outlined belo*Spe&i8i& re<uirements 8or transmitters, re&orders, &omputers, &ontrollers, and ot-erinstruments are in&luded in Se&tion >, “nstru!entation”" and Se&tion 0,“Electronic #easure!ent and Tele!etering”" o8 t-ese guidelines*

For spe&i8i& material re<uirements, please re8er to t-e latest revision o8 CPGDesign Standard DS"00+ (le&troni& Measurement and Gas C-romatograp-Spe&i8i&ations*



$*$* Stati& and Di88erential Pressure

%t Columbia Gul8 1ransmission stations, Rosemount $0>! multivariableAPDP11 transmitter s-all be used 8or measuring stati& pressure,8loing gas temperature and ori8i&e di88erential pressure and s-all bedire&t mounted on t-e 8ive valve mani8old -i&- is dire&t mounted on

t-e ori8i&e 8itting* 4-ere ne&essary, stainless steel tubing &onne&tionss-all be 0*!J diameter, as s-ort as pra&ti&al and sloped to drain ba&@ tot-e ori8i&e 8itting*

%t Columbia Gas 1ransmission stations, Rosemount $0! di88erentialpressure transmitter s-all be used 8or measuring di88erential and s-allbe dire&t mounted on t-e 8ive valve mani8old -i&- is dire&t mounted ont-e ori8i&e 8itting* 4-ere ne&essary, stainless steel tubing &onne&tionss-all be 0*!J diameter, as s-ort as pra&ti&al and sloped to drain ba&@ tot-e ori8i&e 8itting*

%t Columbia Gas 1ransmission stations, Rosemount $0! stati&

pressure transmitter s-all be used 8or measuring stati& pressure ands-all be dire&t mounted on t-e to valve mani8old -i&- is dire&tmounted on t-e ori8i&e 8itting* 4-ere ne&essary, stainless steel tubing&onne&tions s-all be 0*!J diameter, as s-ort as pra&ti&al and sloped todrain ba&@ to t-e ori8i&e 8itting*

$*$*2 Floing Gas 1emperature

%t Columbia Gul8 1ransmission stations, 8loing gas temperature s-allbe measured it- t-e Rosemount $0>! multivariable transmitter at t-e8irst auiliary &onne&tion donstream o8 t-e ori8i&e 8itting*

%t Columbia Gas 1ransmission stations, 8loing gas temperature s-all

be measured it- t-e Rosemount $"" temperature transmitter at t-e8irst auiliary &onne&tion donstream o8 t-e ori8i&e 8itting*

• %ll t-ermal elements s-all be installed in t-ermometer ells t-atetend into t-e &entral t-ird o8 t-e gas stream*

• 4iring 8or t-e t-ermal element s-all be installed to t-etemperature transmitter 8or t-e same meter run*

• % test t-ermoell s-all be provided on ea&- meter tube* 1-e test

ell s-all be immediately donstream o8 t-e sensing t-ermalelement*

(.+ $!S'"##"'$O!

$*"* General %rrangement

Meter tubes s-all be installed s<uare and level it- t-e -eig-t o8 t-e&enterline beteen $ 8eet and " 8eet above grade* Spa&ing beteenoutside diameter o8 ea&- run s-all be a minimum o8 " 8eet 8oroperational and maintenan&e a&&ess*



$*"*2 Supports

Meter tubes s-all be ade<uately supported it- adustable pipesupports* %s a minimum, one support s-all be provided on t-edonstream se&tion near t-e ori8i&e 8itting, and a minimum o8 onesupport s-all be provided on t-e upstream se&tion* Support design

must provide 8or removal o8 t-e upstream se&tion o8 t-e tube 8orinspe&tion and must ensure t-at t-e ot-er tube se&tions are ade<uatelysupported, even -en t-e upstream se&tion is removed*

$*"*$ .nlet and 'utlet 3alves

(a&- meter run s-all -ave an inlet valve and an outlet valve so t-at t-erun &an be isolated* 1-ese valves s-all be 8ull port double blo&@ andbleed ball valves it- raised 8a&e8langed ends* Siin&- and largervalves s-all -ave eit-er a gear or pneumati& operator*

• 'utlet valves on se&ondary meter runs may be used 8or

automati& tube sit&-ing, and in t-is event, ill be e<uipped it-doublea&ting, pneumati& a&tuators* ASee Se&tion =*, IMeterRun Se<uen&ingJ*

• % in&- loading valve s-all be installed a&ross t-e inlet blo&@valve to insure t-e integrity o8 t-e ball valve seats*

+ '&RB$!E ME'ERS1-is se&tion des&ribes re<uirements 8or turbine meters 8or measurement o8 natural gas*Single or dual rotor Sensus turbine meters are a&&eptable 8or use by CPG* AColumbiaGas 1ransmission limits use to single rotor turbine meters* Meter tube assemblies andturbine meters s-all be designed, 8abri&ated, tested and inspe&ted in a&&ordan&e it- all

appli&able re<uirements o8 t-e latest edition o8 %G% 1ransmission MeasurementCommittee Report o* 7, M e a sure m e n t o 8 G a s by 1 urb ine M ete r s. CPG Design StandardDS8+,,0 s>ould also ;e referenced

+.1 S$?$!G CR$'ER$"

1-e number and si?e o8 turbine meter runs s-all be sele&ted to measure t-emaimum 8lo rate at t-e minimum pressure and t-e minimum 8lo rate at t-emaimum pressure, -ile maintaining 8lo rates o8 individual meters it-in t-erange re&ommended by t-e manu8a&turer*

"** Multiple 1urbine Meter Runs

Multiple turbine meter runs s-all be installed -ere ne&essary 8or t-emaimum design 8lo rates and as re<uired 8or turndon beteenmaimum and minimum 8lo rates* (&ept in &ases -ere etremeturndon ratios are re<uired or in ot-er spe&ial &ir&umstan&es, it ispre8erred t-at multiple turbine meter runs be o8 t-e same si?e and&on8iguration* %utomati& tube sit&-ing s-all be provided t-roug- t-e8lo &omputer 8or stations it- multiple meter runs to automati&allybring tubes on line, or ta@e tubes o88 line as re<uired to maintain 8lo



rates t-roug- individual meters it-in t-e range re&ommended by t-emanu8a&turer* Run se<uen&ing valves s-all be butter8ly valves installeddonstream o8 t-e turbine meter in t-e meters normal 8lo dire&tion*9sing t-e outlet meter run blo&@ valve 8or run se<uen&ing is notre&ommended* Multiple turbine meter runs s-all be installed it- a ballvalve bypass as spe&i8ied in Se&tion 2*2*!*

"**2 Single 1urbine Meter Runs

Single turbine meter runs s-all be installed it- a ball valve bypass asspe&i8ied in Se&tion 2*2*!*

+. '&RB$!E ME'ER '&BES

1urbine meter tubes 8or &ustody trans8er measurement s-all only be installed atdelivery points 8rom CPG and re<uire engineering approval* Meter tube&omponents s-all be manu8a&tured and meter tubes assembled and tested by anapproved vendor &apable o8 ensuring t-at t-e &ompleted meter tube assembliesmeet all appli&able re<uirements o8 %G% 7*

• %ll meter tube elds s-all be ground smoot- internally, to mat&- t-e&ontour o8 t-e pipe all*

• Spare turbine meter modules s-all be supplied it- all turbine meter runstation installations*

+.( '&RB$!E ME'ER $!S'R&ME!'"'$O!

For spe&i8i& material re<uirements, please re8er to t-e latest revision o8 CPG DesignStandard DS"00+ (le&troni& Measurement and Gas C-romatograp- Spe&i8i&ations*

(le&troni& Flo Measurement A(FM s-all be employed at all turbine meter

stations*

"*$* 1urbine Meter 'utput

1-e turbine meter s-all output un&orre&ted pulse to t-e CPG 8lo&omputer t-at ill do billing 8lo &al&ulations* 1-e pulse s-ouldoriginate 8rom t-e meter slot sensor* %n eternal pulser may be used byt-e &ustomer 8or &-e&@ measurement* Sensus Adual rotor %uto %dust1urbine meters s-all not be used 8or Columbia Gas 1ransmissionappli&ations* Sensus Adual rotor %uto %dust 1urbine meters may beused 8or Columbia Gul8 1ransmission appli&ations*

"*$*2 Stati& Pressure

%t Columbia Gul8 1ransmission and Columbia Gas 1ransmissionstations, Rosemount $0! stati& pressure transmitter s-all be used 8ormeasuring stati& pressure and s-all be dire&t mounted on t-e to valvemani8old -i&- s-all be tapped into t-e pressure &onne&tion on t-emeter body -ere pra&ti&al* 4-ere ne&essary, stainless steel tubing&onne&tions s-all be 0*!J diameter, as s-ort as pra&ti&al and sloped todrain ba&@ to t-e turbine meter*



"*$*$ Floing Gas 1emperature

%t Columbia Gul8 1ransmission and Columbia Gas 1ransmissionstations, Rosemount $"" temperature transmitter s-all be used 8ormeasuring 8loing gas temperature it- appropriately si?ed t-ermoell*

1-e t-ermal element s-all be lo&ated at t-e 8irst auiliary &onne&tion

donstream o8 t-e meter on ea&- turbine meter run*

• %ll t-ermal elements s-all be installed in t-ermometer ells t-atetend into t-e &entral t-ird o8 t-e gas stream*

• 4iring 8or t-e t-ermal element s-all be installed to t-e multivariable transmitter 8or t-e same meter run*

• % test t-ermoell s-all be provided on ea&- meter tube* 1-e testell s-all be donstream o8 t-e sensing t-ermal element*

+.+ $!S'"##"'$O!

"*"* General %rrangement

Meter tubes s-all be installed s<uare and level it- a &enterline -eig-tbeteen $ 8eet and " 8eet above grade* Minimum spa&ing beteen andaround meter tubes s-all be ade<uate 8or operational and maintenan&ea&&ess*

"*"*2 Supports

Meter tubes s-all be ade<uately supported using adustable pipesupports*

"*"*$ .nlet and 'utlet 3alves



automati& tube sit&-ing and, in t-is event, ill be e<uipped it-doublea&ting, pneumati& a&tuators* ASee Se&tion =*, IMeterRun Se<uen&ingJ*

• % in&- loading valve s-all be installed a&ross t-e inlet blo&@valve to insure t-e integrity o8 t-e ball valve seats

"*"*" Meter Prote&tion

1-e meter tube blo don si?e s-all be limited as spe&i8ied by %G% 7*

% restri&tion plate s-all be installed as spe&i8ied in %G% 7 and 8ound in % p p e n d i (*

"*"*! Strainer

(a&- turbine meter station s-all be e<uipped it- a strainer upstream o8 ea&- meter inlet*



• Strainers s-all be bas@ettype and s-all be e<uipped it- a drain

valve*

• Strainer elements s-all be per8orated &arbon steel it- a $0"

stainless steel 00 mes- s&reen liner, and -aving an open areanot less t-an 200 o8 t-e meter tube &ross se&tion*

• Strainers s-all -ave raised 8a&e8langed ends*

• Strainers -aving a lid#bonnet eig-ing in e&ess o8 00 pounds

s-all be provided it- a li8ting devi&e &apable o8 8ully suspendingt-e lid#bonnet to allo removal o8 t-e strainer bas@et*

"*"*+ Proving

Gas turbine meters normally are not be proved in t-e 8ield* ormallyturbine meters, or meter internals ill be repla&ed it- s-opprovedunits* .n t-e event t-at 8ield meter proving is &ontemplated 8or aparti&ular meter station, t-en appropriate meter prover &onne&tions s-all

be provided*"*"*7 1urbine Module 6i8ting Me&-anism

% M&Master Carr ib &rane s-all be provided 8or =J and larger meters toprovide 8or removal and installation o8 t-e turbine meter module* 1-is&rane AP# $2""1 s-all -ave a li8ting &apa&ity o8 000 lbs*, and a 0-ig- 0 span arm t-at s-all be &onstru&ted o8 0J "*++J steel .beam*1-is &rane s-all be 8itted it- a 000 lb* -oist AP# $0>"12 and a 000lb* &-ain -oist trolley 8lyer AP# $2+>1!*

"*"*= %utomati& oiler

% 4el@er automati& oiler, model number '.P2) is re<uired on everyturbine meter*

* &#'R"SO!$C ME'ERS1-is se&tion des&ribes re<uirements 8or ultrasoni& meters 8or measurement o8 natural gas*Meter tube assemblies and ultrasoni& meters s-all be designed, 8abri&ated, tested andinspe&ted in a&&ordan&e it- all appli&able re<uirements o8 t-e latest edition o8 %G%1ransmission Measurement Committee Report o* >, M e a sure m e n t o 8 G a s by M u lt ip a t -9l tr as o n i& M ete rs" A%G% >* CPG Design Standard DS8+,,+ s>ould also ;e referenced.9ltrasoni& meters s-all be used on gas 8lo only* Care s-ould be ta@en to pre&lude top-ase 8lo a&ross ultrasoni& measurement intended 8or gas servi&e*

*.1 S$?$!G CR$'ER$"

1-e number and si?e o8 ultrasoni& meter runs s-all be sele&ted 8or an optimumoperating range beteen ! 8ps and 7! 8ps it- a maimum operating rangebeteen $ 8ps to =! 8ps* 1-e maimum operating range s-ould not o&&ur moret-an ! o8 t-e meter inservi&e time* Si?e determination is also based on t-emaimum 8lo rate at t-e minimum pressure and t-e minimum 8lo rate at t-emaimum pressure*



!** Multiple 9ltrasoni& Meter Runs

Multiple ultrasoni& meter runs s-all be installed -ere ne&essary 8or t-emaimum design 8lo rates and as re<uired 8or turndon beteenmaimum and minimum 8lo rates* Multiple ultrasoni& meter runs s-allbe o8 t-e same si?e and &on8iguration* %utomati& tube sit&-ing s-all

be provided to automati&ally bring tubes on line, or ta@e tubes o88 line asre<uired to maintain 8lo rates t-roug- individual meters it-in t-erange re&ommended by t-e manu8a&turer* Run se<uen&ing valves s-allbe meter run diameter 8ull port ball valves installed donstream o8 t-eultrasoni& meter in t-e meters normal 8lo dire&tion* 9sing t-e outletmeter run blo&@ valve 8or run se<uen&ing is not re&ommended* Multipleultrasoni& meter runs s-all be installed it- a ball valve bypass asspe&i8ied in Se&tion 2*2*!*

!**2 Single 9ltrasoni& Meter Runs

Single ultrasoni& meter runs s-all be installed it- a ball valve bypassas spe&i8ied in Se&tion 2*2*!*

*. &#'R"SO!$C ME'ER '&BES

9ltrasoni& meter tubes 8or &ustody trans8er measurement s-all be per t-e draingsin t-e CPG Standard Draing )oo@ Asee % p p e n d i % 8 or D r a ing 6 ist * 1-e tubesill in&lude a Daniel Pro8iler or Canada Pipeline %&&essories CP% !0( 8lo&onditioner, and a Daniel Senior Soni& or Si& Mai-a@ Flosi& ultrasoni& meter, it-raised 8a&e 8langed inlet and outlet* Meter tube &omponents s-all be manu8a&turedand meter tubes assembled and tested by an approved vendor &apable o8 ensuringt-at t-e &ompleted meter tube assemblies meet all appli&able re<uirements o8 %G%>* % +in&- ultrasoni& is t-e largest a&&eptable meter unless CPG (ngineeringgives ritten approval*

!*2* 1-rottling Devi&es

% t-rottling devi&e su&- as a regulator or partially &losed valve s-all notbe installed in &lose proimity to t-e ultrasoni& meter* % -eaderassembly s-all separate multiple meter settings 8rom t-e&ontrol#regulator setting* 1-e meter station s-all be designed toin&orporate !0 D o8 pipe and a minimum o8 to noise abatement 8ittingsAdead-eaded tee it- blind 8lange or eld &ap beteen t-e noisegenerator and meter*

!*2*2 Pipe

Pipe used in t-e 8abri&ation o8 meter tubes s-all be sele&t pipe, meeting

t-e dimensional and sur8a&e 8inis- toleran&es o8 %G% >, andmanu8a&tured under %S1M Standard %0+ or %P. !6* Pipe allt-i&@ness and yield strengt- s-all be sele&ted to provide t-e re<uireddesign pressure it- a 0*! design Fa&tor a8ter t-e meter tube is -oned**1-e meter tube .D s-all mat&- t-e internal diameter o8 t-e ultrasoni&meter a8ter t-e meter tube is -oned* 1-e meter tube s-all be -oned it-an average internal sur8a&e roug-ness o8 !0 to 2!0 mi&roin&-es*



!*2*$ Flanges

Flanges 8or meter tubes s-all be raised 8a&e eld ne&@ 8langes, bored tomat&- t-e meter tube inside diameter*


a&&ordan&e it- %SM(#%S. )+*!, IPipe Flanges and FlangedFittingsJ* 4-ere %0! 8langes are to be elded to -ig- yieldstrengt- pipe, ASMS U $!000 psi 8lange -ubs s-all be spe&iallyprepared to develop t-e 8ull strengt- o8 t-e pipe* %lternately,8langes s-all be in a&&ordan&e it- MSS SP"", ISteel PipelineFlangesJ, and -ave a yield strengt- mat&-ing t-at o8 t-e pipe to-i&- t-ey are elded* Furt-ermore, t-e 8langes at t-e 9SM andt-e 8lo &onditioner s-all be doel pinned 8or pre&ise meter tubealignment*

!*2*" %uiliary Conne&tions

Meter tubes s-all -ave auiliary &onne&tions 8or vents, instrument gas

taps, temperature instruments and sample probes* 1-e si?e andlo&ation o8 t-ese taps s-all be as s-on on t-e CPG StandardDraings Asee %ppendi % 8or Draing 6ist*

• %ll meter tube elds s-all be ground smoot- internally, to mat&-t-e &ontour o8 t-e pipe all*

!*2*! S-op 1esting and .nspe&tion

Meter tubes s-all be tested and inspe&ted in t-e 8abri&ators s-op ina&&ordan&e it- t-e re8eren&ed &odes and standards and as outlined inSe&tion *$*+, IPressure 1estingJ*

CPG s-all be a88orded t-e opportunity to revie all o8 t-ese tests andinspe&tions -et-er t-e meter tubes are pur&-ased by CPG or by t-eCustomer* %ll tests and inspe&tions s-all be t-oroug-ly do&umentedand &opies o8 all test and inspe&tion reports s-all be 8urnis-ed to CPG*

• 1-e meter tube, ultrasoni& meter and a&&essories 8urnis-ed byt-e 8abri&ator s-all be inspe&ted to &on8irm &omplian&e it- %G%> and t-e pur&-ase do&uments*

• 9ltrasoni& meters s-all be 8lo &alibrated at anti&ipated

operating pressure and temperature* 1-e meter test&on8iguration s-all in&lude as a minimum, t-e ultrasoni& meter,

t-e upstream and donstream meter tube se&tions, t-e 8lo&onditioner and t-e temperature transmitter* Meter run 8lotesting s-all be &ondu&ted at an approved 8a&ility* 1-e C((S.,.oa 8a&ility is pre8erred* 1-e 1ransCanada Calibrations 8a&ilityin 4innipeg or Sout-est Resear&- in San %ntonio may beused it- prior CPG approval* % 8our ee@ noti&e o8 &alibrationto t-e CPG Design (ngineer is re<uired*

• Design draings s-all be re&eived 8rom 8abri&ator prior tosending unit 8or 8lo &alibration*



• %8ter 8abri&ation and nondestru&tive testing o8 t-e meter run,

provisions s-all be made 8or CPG to itness t-e IetJ &alibrationo8 t-e ultrasoni& meter eit-er in person or remotely

• 1-e ultrasoni& meter and meter run s-all be 8lo &alibrated in

t-e same &on8iguration as intended 8or operation* 1-is in&ludes

installation o8 all test#temperature ells, 8lo &onditioner, et&*• 1-e 9SM s-ould be 8abri&ated and assembled prior to et

&alibration and not disassembled unless t-e lengt- o8 t-e entiresetting pre&ludes sa8e s-ipping* 9ltrasoni& meter and runs-ould be doel pinned by t-e meter run 8abri&ator to ensureproper line up and reassembly in t-e 8ield i8 re<uired*

• 1-e 8lo &alibration test rates are as 8ollos: minimum 8lo o8 $

8ps, 0 8ps, 2! 8ps, "0 8ps, +0 8ps, 7! 8ps and 00 8ps* 1-e 8lo&alibration 8a&ility s-all use t-e manu8a&turers ultrasoni& meter&orre&tion 8a&tors upon &onsultation it- t-e CPG itness* See

%ppendi D 8or additional 1esting Re<uirements*

•

1-e 8lo &alibration 8a&ility s-all veri8y &orre&tion 8a&tors -avebeen applied to t-e ultrasoni& meter at to 8lo rates o8 2! and+! 8ps*

.n addition to do&umentation 8or tests and inspe&tions des&ribed above,t-e 8abri&ator s-all provide t-e 8olloing to CPG: ultrasoni& meter&alibration &urves#reportsH &erti8i&ation t-at t-e meter tube assemblies&omply it- all appli&able re<uirements o8 %G% >H &erti8i&ation t-atmaterials and 8abri&ation &omply it- P5MS% Part >2H and &opies o8radiograp-i& reports and ot-er appli&able <uality &ontrol do&uments*

*.( &#'R"SO!$C ME'ER $!S'R&ME!'"'$O!

For spe&i8i& material re<uirements, please re8er to t-e latest revision o8 CPG DesignStandard DS"00+ (le&troni& Measurement and Gas C-romatograp- Spe&i8i&ations*(le&troni& Flo Measurement A(FM s-all be employed at all ultrasoni& meter stations*(a&- ultrasoni& meter run s-all be e<uipped it- instrumentation to measure ultrasoni&meter output pulses, stati& pressure and 8loing gas temperature 8or t-e &omputation o8 8lo rate* General installation re<uirements are outlined belo* Spe&i8i& re<uirements8or transmitters, &omputers, &ontrollers, and ot-er instruments are in&luded in t-e CPG(le&troni& Measurement and Gas C-romatograp- Spe&i8i&ations*

!*$* 9ltrasoni& Meter 'utput

1-e ultrasoni& meter s-all output un&orre&ted pulse to t-e CPG 8lo&omputer t-at ill per8orm t-e 8lo &al&ulations* % Data valid signal ill alsobe re<uired 8or ultrasoni& measurement* 4it- CPG approval, ultrasoni&meters &an be set up 8or bidire&tional gas 8lo measurement it- 8lodire&tion input to t-e CPG 8lo &omputer*

!*$*2 Stati& Pressure

%t Columbia Gul8 1ransmission and Columbia Gas 1ransmission stations,Rosemount $0! stati& pressure transmitter s-all be used 8or measuring



stati& pressure and s-all be dire&t mounted on t-e to valve mani8old -i&-s-all be tapped into t-e pressure &onne&tion on t-e meter body -erepra&ti&al* 4-ere ne&essary, stainless steel tubing &onne&tions s-all be 0*!Jdiameter, as s-ort as pra&ti&al and sloped to drain ba&@ to t-e ultrasoni&meter* Asee CPG (le&troni& Measurement and Gas C-romatograp-Spe&i8i&ations

!*$*$ Floing Gas 1emperature

%t Columbia Gul8 1ransmission and Columbia Gas 1ransmission stations,Rosemount $"" temperature transmitter s-all be used 8or measuring 8loinggas temperature it- appropriately si?ed t-ermoell*

1-e t-ermal element s-all be lo&ated at t-e 8irst auiliary &onne&tiondonstream o8 t-e ultrasoni& meter it-in $ to ! pipe diameters donstreamo8 t-e 9SM Asee CPG (le&troni& Measurement and Gas C-romatograp-Spe&i8i&ations on ea&- 9ltrasoni& meter run*

• (a&- meter run s-all -ave a dedi&ated t-ermal element installed8or t-e same meter run*

• %ll t-ermal elements s-all be installed in t-ermometer ells t-atetend into t-e top t-ird diameter o8 t-e meter tube*

• % test t-ermoell s-all be provided on ea&- meter tube* 1-etest ell s-all be donstream o8 t-e sensing t-ermal element*

*.+ $!S'"##"'$O!

!*"* General %rrangement

Meter tubes s-all be installed s<uare and level it- t-e &enterline at a

-eig-t beteen $ 8eet and " 8eet above grade* Spa&ing beteen t-eoutside diameters o8 t-e runs s-all be a minimum o8 " 8eet 8oroperational and maintenan&e a&&ess* % &anopy or &over designed 8ort-e lo&ation and loads s-all be installed over t-e ultrasoni& meter runsto @eep sunlig-t o88 t-e meter runs to prevent t-ermal &urrents in t-emeter tube*

1-e piping design s-all allo 8or t-e addition o8 a temporary or permanent &-e&@ meter su&- as a &lampon ultrasoni& meter*

!*"*2 Supports

Meter tubes s-all be ade<uately supported* %dustable pipe supportsare pre8erred* %s a minimum, one support s-all be provided on t-emeter tube on eit-er side o8 t-e ultrasoni& meter, and at least oneadditional support s-all be provided on t-e upstream se&tion* Supportdesign must provide 8or removal o8 t-e upstream se&tion o8 t-e metertube, and#or t-e ultrasoni& meter, 8or inspe&tion and must ensure t-att-e ot-er tube se&tions are ade<uately supported, even -en t-eupstream se&tion and#or ultrasoni& meter are removed*



!*"*$ .nlet and 'utlet 3alves



automati& tube sit&-ing and, in t-is event, ill be e<uipped it-doublea&ting, pneumati& a&tuators* ASee Se&tion =*, IMeterRun Se<uen&ingJ, o8 t-ese guidelines*

• % in&- loading valve s-all be installed a&ross t-e inlet blo&@valve to insure t-e integrity o8 t-e ball valve seats*

- POS$'$E D$SP#"CEME!' ME'ERSPositive displa&ement meters Arotary s-all be designed and installed in a&&ordan&e it-all appli&able re<uirements o8 t-e latest edition o8 %S. )0>*$, I$otary Type Gas

%isplace!ent #eters” * Rotary meter tubes 8or &ustody trans8er measurement s-all only beinstalled at delivery points 8rom CPG and re<uire engineering approval* 5ig- pressure&artridge type rotary meters it- internal bypass s-ould be used to pre&lude loss o8mar@et* Meter tube &omponents s-all be manu8a&tured and meter tubes assembled andtested by an approved vendor &apable o8 ensuring t-at t-e &ompleted meter tubeassemblies meet all appli&able CPG re<uirements*

-.1 ME'ERS

Positive displa&ement meters s-all be Dresser Roots or .nstromet or approvede<ual it- a rated or@ing pressure e<ual to t-e design pressure o8 t-e meterstation piping in -i&- t-e meter is to be installed* Meters s-all be e<uipped it-

an internal bypass*

+** Si?ing Criteria

Meters s-all be sele&ted to measure t-e maimum 8lo rate at t-eminimum pressure, and t-e minimum 8lo rate at t-e maimumpressure, -ile maintaining t-e 8lo rates t-roug- t-e individual meter it-in t-e range re&ommended by t-e manu8a&turer*

+**2 Multiple Rotary Meters

Multiple Rotary meters ill not normally be installed in a single meterstation, unless t-e station is serving multiple delivery points* 4-erevolumes to a single delivery point are large enoug- to usti8y multipleRotary meters, ori8i&e or turbine meters are pre8erred6 or &ombinationso8 rotary and turbine or rotary and ori8i&e meters* Run se<uen&ingvalves s-all be butter8ly valves installed donstream o8 t-e rotary meter in t-e meters normal 8lo dire&tion* 9sing t-e outlet meter run blo&@valve 8or run se<uen&ing is not re&ommended* (a&- rotary meter runs-all be installed it- an underslung ball valve bypass t-at meets t-eintent o8 t-e meter bypass per Se&tion 2*2*!*



+**$ Single Rotary Meter Runs

(a&- rotary meter run s-all be installed it- an underslung ball valvebypass t-at meets t-e intent o8 t-e meter bypass per Se&tion 2*2*!

+**" S-op 1esting and .nspe&tion

Rotary meters s-all be tested and inspe&ted in t-e 8abri&ators s-op ina&&ordan&e it- t-e re8eren&ed &odes and standards and as outlined inSe&tion *$*+, “Pressure Testing”.

CPG s-all be a88orded t-e opportunity to itness all o8 t-ese tests andinspe&tions -et-er t-e meter tubes are pur&-ased by CPG or by t-eCustomer* %ll tests and inspe&tions s-all be t-oroug-ly do&umentedand &opies o8 all test and inspe&tion reports s-all be 8urnis-ed to CPG*

• 1-e meter and a&&essories 8urnis-ed by t-e manu8a&turer s-all

be inspe&ted to &on8irm &omplian&e it- %S. )0>*$ and t-epur&-ase do&uments*

.n addition to do&umentation 8or tests and inspe&tions des&ribedabove, t-e manu8a&turer s-all provide t-e 8olloing to CPG:

• Meter &alibration and di88erential pressure &urves#reports it-test points at 0, 2!, !0, 7! and 00 o8 meter &apa&ity*

• Certi8i&ation t-at t-e meter &omplies it- all appli&ablere<uirements o8 %S. )0>*$*

• Certi8i&ation t-at materials and 8abri&ation &omply it- P5MS%Part >2

• Copies o8 appli&able <uality &ontrol do&uments*

-. $!S'"##"'$O!+*2* General %rrangement

Positive displa&ement meters s-all be installed s<uare and level, and ina&&ordan&e it- %S. )0>*$ and t-e manu8a&turers instru&tions*

+*2*2 Piping

ormally, piping 8or Rotary meters is s-op 8abri&ated* Piping materials,8abri&ation, elding, painting and testing s-all be in a&&ordan&e it- t-egeneral piping re<uirements given in Se&tion , Iard Piping and5eadersJ*

+*2*$ Supports

1-e rotary meter and related piping s-all be ade<uately supported*Support design must ensure t-at t-e meter is level, and t-at pipingloads are not trans8erred to t-e meter 8langes*

+*2*" .nlet, 'utlet and )ypass 3alves 8or Single Rotary Meter Setting

(a&- meter s-all -ave 8ull port double blo&@ and bleed ball valves ont-e inlet and outlet valves and a bypass so t-at t-e meter &an beisolated and t-e 8lo bypassed*



+*2*! Strainer

% strainer s-all be installed upstream o8 ea&- rotary meter*

• Strainers s-all be QQ type or bas@et type strainers

• Strainer elements s-all be per8orated &arbon steel and &ontain a

$0" S*S* 00 mes- s&reen -oused in a bas@et, and -aving anopen area not less t-an 200 o8 t-e meter tube &ross se&tion

• Strainers s-all -ave raised 8a&e8langed ends

+*2*+ Prover Conne&tions

% 2J eld t-read nipple it- &ap s-all be provided on ea&- side o8 t-emeter so t-at a meter prover or master meter &an be temporarily&onne&ted in series it- t-e rotary meter* 1-e donstream prover&onne&tion s-all be at an elevation o8 at least 7L above grade to allosa8e venting o8 gas during testing*

+*2*7 'verRange Prote&tion

Rotary meters s-all be prote&ted 8rom overrange it- a &riti&al 8loori8i&e provided by t-e meter manu8a&turer and properly si?ed toprevent meter overrange* 1-e &riti&al 8lo ori8i&e s-all be a steelpaddle type ori8i&e plate, designed 8or mounting beteen raised 8a&e8langes, and s-all be installed donstream o8 t-e meter outlet, normallyat t-e upstream 8lange o8 t-e outlet valve* See % p p e n d i ( 8or si?es*

-.( RO'"R3 ME'ER $!S'R&ME!'"'$O!


(le&troni& Flo Measurement A(FM s-all be employed at all rotary meter stations*

+*$* Rotary Meter Pulse 'utput

1-e rotary meter s-all output un&orre&ted pulse to t-e CPG 8lo&omputer t-at ill do billing 8lo &al&ulations* 1-e pulse s-ouldoriginate 8rom t-e meter pulser*

+*$*2 Stati& Pressure

%t Columbia Gul8 1ransmission and Columbia Gas 1ransmissionstations, Rosemount $0! stati& pressure transmitter s-all be used 8ormeasuring stati& pressure and s-all be dire&t mounted on t-e to valvemani8old -i&- s-all be tapped into t-e pressure &onne&tion on t-emeter body -ere pra&ti&al* 4-ere ne&essary, stainless steel tubing&onne&tions s-all be 0*!J diameter, as s-ort as pra&ti&al and sloped todrain ba&@ to t-e rotary meter* Asee CPG (le&troni& Measurement andGas C-romatograp- Spe&i8i&ations*

%t meter stations it- a single meter run, 6o Cost (le&troni&Measurement A6C(M it- integral pressure temperature sense ill be



used it- integral multivariable transmitters*

+*$*$ Floing Gas 1emperature

%t Columbia Gul8 1ransmission and Columbia Gas 1ransmission stations,Rosemount $"" temperature transmitter s-all be used 8or measuring8loing gas temperature it- appropriately si?ed t-ermoell*

%t meter stations it- a single meter run, temperature ill be measuredit- a* 6o Cost (le&troni& Measurement A6C(M multivariable transmitter

1-e t-ermal element s-all be lo&ated in t-e t-ermalell provided on t-erotary meter run Asee CPG (le&troni& Measurement and GasC-romatograp- Spe&i8i&ations* *

• 4iring 8or t-e t-ermal element s-all be installed to t-etemperature transmitter 8or t-e same meter run i8 appli&able*

• % test t-ermoell s-all be provided on ea&- meter tube* 1-e testell s-all be donstream o8 t-e sensing t-ermal element*

0 )#O "!D PRESS&RE CO!'RO#(<uipment 8or automati& &ontrol o8 8lo and pressure and 8or automati& meter tubesit&-ing s-all be provided as outlined belo* %ny related re<uirements o8 &ontra&ts or inter&onne&t agreements s-all also be ad-ered to*

/ DE)$!$'$O!S

Overpressure protection B System by -i&- regulators or &ontrol valves &ontrol t-epressure 8rom a -ig-er M%'P pipeline to a loer M%'P pipeline* 1o types o8overpressure prote&tion are permitted by t-is guideline B bot- spe&i8ied by P5MS%>2*>>* See Se&tion =*+ B “O&er Pressure Protection”.

Monitored set of regulation B 1o regulators or &ontrol valves are installed in series*1-e primary or overpressure &ontrol valve is t-e donstream valve and s-all be set at t-eloer M%'P pipelines pressure -i&- is to be prote&ted* 1-e upstream regulator or&ontrol valve is t-e monitor valve t-at ill ta@e over i8 t-e primary &ontrol valve 8ails to&ontrol &orre&tly* See Se&tion =*+*$ B “#onitored $egulator Settings”.

Over pressure s>utdo@n valve B %lso @non as a se&urity valve, t-e 'verpressures-utdon valve a&ts as t-e monitor &ontrol valve and ill &lose upon sensing its setpointand remain &losed until manually reset* 1-e 'verpressure s-utdon valve is used -eret-e &ustomer -as provided &ontrol o8 t-e -ig-er M%'P pipeline so as not to over pressure

t-e loer M%'P pipeline* See Se&tion =*+*" B “O&er Pressure S'utdo(n )al&es”

Reote s>utoff valve B % standalone valve t-at &an be remotely &losed -en a stationneeds to be s-ut in at t-e dis&retion o8 CPG* See Se&tion =*= B “$e!ote S'uto** )al&e”

)lo@ Control valve 1-e 8lo &ontrol valve re&eives a remote 8lo set point to &ontrol t-e8lo rate o8 gas using measurement at t-e 8a&ility* See Se&tion =*2* B “Flo( Control)al&es”



)lo@ Control valve @it> overpressure control 1-e 8lo &ontrol valve re&eives aremote 8lo set point to &ontrol t-e 8lo rate o8 gas using measurement at t-e 8a&ility*5oever, t-is setpoint &an be over ridden it- overpressure &ontrol signal 8rom eit-er alo&al pneumati& pressure &ontroller or a lo&al ele&troni& pressure &ontroller* See Se&tion

=*2* B “Flo( Control )al&es”

Pressure control valve B 1-e pressure &ontrol valve re&eives a remote pressure set pointto &ontrol t-e pressure o8 gas using pressure sense at t-e 8a&ility* 5oever, t-is &ontrolvalve &an be over ridden it- overpressure &ontrol signal 8rom eit-er a lo&al pneumati&pressure &ontroller or a lo&al ele&troni& pressure &ontroller* See Se&tion =*$* B “PressureControl )al&es”

Run SeAuencing alve 1-e Run Se<uen&ing 3alve is 8ully opened or &losed based on asignal 8rom t-e 8lo &omputer t-at determines i8 t-e meter run is re<uired to a&&uratelygauge 8lo rate* See Se&tion =** B “#eter $un Se+uencing )al&es”

)lo@ Direction alve 5 1-e Flo Dire&tion 3alve is 8ully opened or &losed based on asignal 8rom t-e 8lo &omputer t-at determines dire&tion o8 8lo t-roug- a bidire&tionalstation* See Se&tion =*> B “Flo( %irection )al&es”

Relief alve B % valve t-at relieves gas to t-e atmosp-ere -en a set pressure is sensed*See Se&tion =*7 B I$elie* )al&es”

Set Pressure 5 1-e pressure set point at -i&- an over pressure devi&e a&tuates*

a 4-ere t-e overpressure prote&tion &riterion is 0 o8 t-e maimum alloableoperating pressure, t-e overpressure prote&tive devi&eAs may be set to 8un&tion at a

pressure slig-tly -ig-er t-an t-e maimum alloable operating pressure, but in no&ase to e&eed a set pressure o8 0! o8 t-e maimum alloable operating pressure*1-e maimum alloable operating pressure and t-e spe&i8ied minimum yield strengt-s-all apply to t-e ea@est element o8 t-e system being prote&ted*

b .t s-all be re&ogni?ed t-at in a Class 6o&ation, design &riteria permits a maimumspe&i8ied minimum yield strengt- o8 72* 6imitations o8 >>*2Aa ill not in all &asespermit a set pressure as -igas 0! o8 t-e maimum alloable operating pressurebe&ause o8 t-e 7! spe&i8ied minimum yield strengt- limitation imposed by Se&tion>2*20AaA2Ai t-at ill apply in a Class 6o&ation*

& 1-e set pressure o8 a relie8 valve prote&ting a &ode stamped, un8ired pressure vessel&ontained it-in t-e pipeline system being prote&ted &annot e&eed t-e stampedpressure rating o8 t-e vessel* M%'P in t-is &ontet means t-e loest maimum

alloable operating pressure, determined in a&&ordan&e it- t-e appli&able &odes andstandards, o8 any &omponent o8 t-e prote&ted piping or e<uipment*

/.1 ME'ER R&! SE%&E!C$!G

%utomati& meter run se<uen&ing Asit&-ing additional meter tubes on or o88 s-allbe provided at meter stations it- multiple meter runs -en ne&essary toa&&urately measure t-e entire station 8lo range*



=** Meter Run Se<uen&ing 3alves

% separate donstream meter run se<uen&ing valve in addition to t-eoutlet blo&@ valve is pre8erred 8or meter run sit&-ing* Meter run outletisolation valves may be used 8or tube sit&-ing it- t-e approval o8

CPG* )utter8ly valves may be used 8or run se<uen&ing on ori8i&e andturbine meter runs in addition to t-e 8ull port ball valve outlet blo&@valve* 'nly meter run diameter 8ull port ball valves may be used 8or runse<uen&ing on ultrasoni& meter runs in addition to t-e 8ull port ball valveoutlet blo&@ valve* Full port ball valves s-all be used as meter run inlet #outlet isolation valves*

=**2 3alve %&tuators

3alve a&tuators 8or meter run sit&-ing s-all be doublea&ting pneumati&a&tuators*

• For sa8ety reasons, poer gas 8or valve a&tuators 8or t-e meter

run s-all be ta@en 8rom t-e blo don &onne&tion on t-e meter tube t-at is being se<uen&ed*

• % blo&@ valve and an instrument supply system are re<uired to

redu&e t-e line pressure to t-e level re<uired by t-e valvea&tuator Anormally 00 psig s-all be provided, and &onne&tedit- V in&- stainless steel tubing to provide valve a&tuatorpoer gas* See Se&tion =*+, I.nstrumentation Gas SupplyJ*

• %&tuators on tube sit&-ing valves ill be &ontrolled

ele&troni&ally using signals 8rom t-e 8lo &omputer to solenoidvalves* 1-e solenoids s-all be lat&-ed until t-e desired valveposition is rea&-ed Atypi&ally t-is is 8ull open and t-en de

energi?ed* .t is also a&&eptable Adepending upon t-e&ir&umstan&es t-at double a&ting solenoids may be used topulse open double a&ting a&tuators on ball valve run se<uen&ingvalves*

• % s-unting diode AMotorola !"07 or e<uivalent s-all be

installed a&ross ea&- solenoid valve &oil to suppress indu&tivevoltage transients*

/. )#O CO!'RO#

%lt-oug- t-e Customer may &ontrol 8lo in t-eir piping system, CPG reserves t-e rig-tto override 8lo &ontrol into or out o8 t-e CPG piping system* Conse<uently, 8lo

&ontrol e<uipment operated by CPG s-all be installed at all meter stations designed 8or 8lo rates o8 0 mm&8d or greater* Flo &ontrol may be provided 8or smaller meterstations -ere re<uired by t-e spe&i8i& &onditions or &ontra&t re<uirements* Flo&ontrol valves s-all be e<uipped it- manual bypass piping and valves 8or 8lovolumes o8 0 mm&8d or greater*

=*2* Flo Control 3alves

Flo &ontrol valves s-all be globe or balltype &ontrol valves it-



doublea&ting pneumati& piston or diap-ragm a&tuators*

• Flo &ontrol valves at meter stations s-all be &ontrolled

ele&troni&ally using a signal dire&tly 8rom t-e 8lo &omputer to t-evalve positioner#a&tuator, or via a motor &ontrolled regulator type

ele&troni&topneumati& transdu&er AFair&-ild Model 2"KFM o)leed Remote Set Regulator RSR* Re8er to CPG (le&troni&Measurement and Gas C-romatograp- Spe&i8i&ations*

• .n general, 8lo &ontrol valves s-all be arranged to 8ail in last

position, but t-e spe&i8i& 8ailure mode s-all be evaluated 8orea&- meter station*

• Flo &ontrol valves may also be used it- an alternate &ontrol

signal and appropriate relaying to provide pressure override o8 t-e 8lo &ontrol 8un&tion*

• Poer and pilot gas 8or 8lo &ontrol valves s-all be 8iltered, dried

gas 8rom t-e instrument gas supply system* See Se&tion >*+,I.nstrument Gas SupplyJ*

• Position 8eedba&@ e<uipment s-all be installed on 8lo &ontrol

valves* 1-is e<uipment s-ould in&lude 8ull open and 8ull &losedlimit sit&-es as ell as analog valve position 8eedba&@*

/.( PRESS&RE CO!'RO#

Pressure &ontrol s-all be provided -ere ne&essary to &ontrol donstream pressure ata spe&i8i& value* % single pressure &ontrol valve does not &onstitute over pressureprote&tion*

=*$* Pressure Control 3alves

Pressure &ontrol valves s-all be globe or balltype &ontrol valves it-double a&ting pneumati& piston or diap-ragm a&tuators* .8 8ail open or 8ail &losed a&tuation is desired, single a&ting, spring return a&tuatorss-all be employed*

• Pressure &ontrol valves it- remote pressure set point s-all be

&ontrolled ele&troni&ally by t-e station 8lo &omputer in&onun&tion it- a pneumati& pressure &ontroller -ere re<uired8or overpressure prote&tion*

• .n general, pressure &ontrol valves s-all be arranged to 8ail last

position upon loss o8 poer or pilot, but t-e spe&i8i& 8ailure mode

s-all be evaluated 8or ea&- meter station*

• Pressure &ontrol valves may also be used it- an alternate

&ontrol signal and appropriate relaying to provide over pressureprote&tion -en used in &onun&tion it- a monitor &ontrol valve*See Se&tion =*+, I'verpressure Prote&tionJ

• Poer and pilot gas 8or pressure &ontrol valves s-all be 8iltered,dried gas 8rom t-e instrument gas supply system* See Se&tion>*+, I.nstrument Gas SupplyJ*



• .ndividual taps and instrument supply systems s-all be used 8or

all pneumati& valve a&tuators in pressure &ontrol servi&e*

• Position 8eedba&@ e<uipment s-all be installed on pressure

&ontrol valves* 1-is e<uipment s-ould in&lude 8ull open and 8ull&losed limit sit&-es as ell as analog valve position 8eedba&@*

=*$*2 Regulation )ypass

Regulation bypass s-all be installed at all pressure &ontrol settings-ere 8lo &annot be interrupted and -i&- -ave only a single regulator run* 1-e bypass run s-all be designed it- to plug valves* 1-e 8irstplug valve &an be manually t-rottled 8or pressure &ontrol -ile t-eregulation is inspe&ted and t-e se&ond plug valve &an be greased toprevent lea@age and &an be lo&@ed s-ut* % pressure indi&ator s-all beinstalled beteen t-e plug valves 8or pressure indi&ation* Considerinstalling o8 a regulator beteen t-e plug valves 8or more a&&urate&ontrol -ile t-e primary regulator run is being inspe&ted*

/.+ CO!'RO# "#E S$?$!G "!D SE#EC'$O!

1-e si?e and number o8 pressure and 8lo &ontrol valves s-all be determinedbased on t-e 8olloing design &onditions: maimum 8lo rate at t-e minimumpressure and t-e minimum 8lo rate at t-e maimum pressure*

• Pressure and 8lo &ontrol valves s-all be si?ed to operate beteen 20

and =0 open over t-e range o8 design 8lo rates and pressures* Multipleparallel valves s-all be installed as re<uired to a&-ieve t-e re<uiredturndon*

• Si?ing &al&ulations s-all in&lude noise &al&ulations* oise abatement trim,

a&ousti& insulation, or ot-er noise abatement measures s-all be

implemented i8 predi&ted noise levels e&eed =! db at t-ree 8eet, or i8 noiselevels e&eed loer limits spe&i8ied by 8ederal, state or lo&al regulations*

• Control valves s-all -ave raised 8a&e8langed ends* )all type &ontrol valves

may be Q8langelessQ Ai*e* Fis-er 3200 8or mounting beteen raised 8a&e8langes*

/.* CO!'RO# "#E $!S'"##"'$O!

=*!* General

Flo and pressure &ontrol valves s-all be installed above grade*5oever, i8 noise is a &onsideration, t-e valves may be installed belo

grade but only it- CPG ritten approval*

=*!*2 Piping

Control valve piping s-all be in a&&ordan&e it- t-e general re<uirementso8 Se&tion , “,ard Piping and -eaders” , o8 t-ese guidelines and s-all&on8orm to t-e spe&i8i& re<uirements outlined belo*

• Flo and pressure &ontrol valves s-all be installed donstreamo8 measurement*



• Control valves mounted in parallel s-all be installed using

-eaders in t-e inlet and outlet piping*

• Piping s-all be arranged to be sel8draining to t-e -eaders*

• )lo&@ valves s-all be installed on ea&- side o8 &ontrol valves

settings* )lo&@ valves s-all be 8ull port, double blo&@ and bleed

ball valves it- raised 8a&e8langed ends*

• 1-e &ontrol valve body, donstream blo&@ valve, and piping

beteen t-e &ontrol valve and t-e donstream blo&@ valve s-allbe rated 8or t-e maimum inlet pressure to t-e &ontrol valve*

• (a&- pressure &ontrol valve s-all -ave a separate valve tap

&onne&tion on t-e donstream piping or -eader as a pressuresensing point 8or ea&- o8 t-e pressure &ontrollers*

• % pressure sense &onne&tion it- tap valve and pressure

indi&ator s-all be installed on eit-er side o8 pressure &ontrolvalves it-in t-e blo&@ valves*

• % blo don tap it- valve s-all be provided 8or ea&- &ontrol

valve on t-e piping beteen t-e &ontrol valve and t-edonstream blo&@ valve*

• Position 8eedba&@ e<uipment s-all be installed on bot- monitor

and primary pressure &ontrol valves -en used 8or overpressureprote&tion* 1-is e<uipment s-ould in&lude 8ull open and 8ull&losed limit sit&-es as ell as analog valve position 8eedba&@*

/.- OERPRESS&RE PRO'EC'$O!

(a&- meter station and#or pipeline t-at is &onne&ted to a gas sour&e so t-at t-emaimum alloable operating pressure &ould be e&eeded as t-e result o8 a pressure

&ontrol 8ailure or some ot-er type o8 8ailure, must -ave pressure relieving or pressurelimiting devi&es installed t-at meet t-e re<uirements o8 P5MS% Part >2*>> andP5MS% Part >2*20*

=*+* Criteria 8or 'verpressure Prote&tion

'verpressure prote&tion s-all be provided 8or t-e 8olloing situations:

• %ll &ases -ere t-e delivering system -as t-e &apability o8

e&eeding t-e M%'P o8 t-e re&eiving system* Do&umentation o8 overpressure prote&tion devi&e design parameters and relie8valve &apa&ity s-all be provided 8or revie and approval by CPG

(ngineering*• %ll &ases -ere valve a&tuator poer gas, instrument gas and

ot-er auiliary gas systems may be over pressured by t-edelivery system*

• %ll piping t-at &an be isolated and made Qbottletig-tJ or P'Ds

t-at -ave small gas ta@e aay &apa&ities A-as t-e potential 8or overpressure 8rom valve lea@age s-all be prote&ted bysa8ety#relie8 valves in lieu o8 pressure monitor or over pressures-utdon valves*



• Rupture dis&s s-all not be used*

=*+*2 Sele&tion o8 'verpressure Prote&tion Devi&es

'verpressure prote&tion s-ould be provided by monitored regulatorsettings or over pressure s-utdon valves as des&ribed in Se&tions=*+*$, “#onitored regulator settings” and =*+*", “O&er pressures'utdo(n &al&es”" ACPGs pre8erred met-ods* 'verpressure prote&tionmay also be provided by sa8ety#relie8 valves as des&ribed in Se&tion =*7,“Sa*ety$elie* )al&es" or by a &ombination o8 t-ese devi&es by &ode*5oever, use o8 sa8ety#relie8 valves 8or overpressure prote&tion isdis&ouraged by CPG due to t-e possible unintended release o8 gas tot-e atmosp-ere*

'verpressure prote&tion devi&es s-all meet t-e minimum re<uirementso8 P5MS% Part >2*

=*+*$ Monitored regulator settings

Monitored regulator settings are monitor pressure &ontrol valves pla&ed

upstream o8 and in series it- primary pressure &ontrol valves t-at illautomati&ally ta@e over t-e pressure regulating 8un&tion in t-e event o88ailure or mal8un&tion o8 t-e primary pressure &ontrol system*

• Control valves in a monitored regulation setting may &onsist o8

instrument &ontrolled valves, pilot operated or sel8operatedregulators*

• Monitored regulator settings s-all be dedi&ated to monitor

servi&e and s-all not be used 8or any normal operational8un&tion* Controls, poer and pilot gas supply, and pressuresensing taps s-all be separate 8rom primary &ontrol regulation

and any normal operational devi&es*• Position 8eedba&@ e<uipment s-all be installed on bot- monitor

and primary pressure &ontrol valves* 1-is e<uipment s-ouldin&lude 8ull open and 8ull &losed limit sit&-es as ell as analogvalve position 8eedba&@*

• Monitored regulator settings s-all be globe or balltype &ontrol

valves* ormally t-ey ill be similar to t-e primary &ontrol valve t-att-ey are monitoring, and must -ave t-e same pressure rating*

• Control valves s-all -ave pneumati& piston or diap-ragm

a&tuators as appropriate 8or t-e spe&i8i& valve* Singlea&ting,spring return, 8ail open a&tuators are pre8erred* Doublea&ting

a&tuators s-all be provided it- a volume tan@ to provide anemergen&y supply o8 poer gas to operate t-e valve in t-e evento8 poer gas supply interruption* 3olume tan@s s-all bee<uipped it- a &-e&@ valve installed in t-e poer gas supplyline to prevent volume tan@ bleeddon in t-e event o8 poer gas supply interruption*

• 6o&al pneumati& pressure &ontrols s-all be used 8or monitored

regulator settings* 1-e primary &ontrol valve may be e<uippedit- a remote set pressure &ontrol depending on t-e operations



piping* 1-e over pressure s-utdon valve s-all remain 8ullyopen -ile t-e monitored pressure is it-in t-e spe&i8ied normalrange* 1-e over pressure s-utdon valve set point must alsobe belo t-e set point o8 any asso&iated sa8ety#relie8 valves*See Se&tion =*7*2 B Set Pressure*

•CPG (ngineering ill approve all set points 8or over pressureprote&tion e<uipment*

• 'ver pressure s-utdon valves and asso&iated &ontrols s-all be

arranged to 8ail &losed on loss o8 poer or pilot* Spe&i8i& 8ailuremodes s-all be evaluated 8or ea&- meter station*

/.0 S")E'3=RE#$E) "#ES OER PRESS&RE PRO'EC'$O!

Sa8ety#Relie8 valves s-all not be used as pipeline over pressure prote&tion unless ane&eption is granted by CPG (ngineering*

Sa8ety#relie8 valves s-all be provided to prote&t piping and e<uipment 8rom

overpressure -ere ade<uate prote&tion &annot be obtained it- pressuremonitoring or pressure limiting devi&es* .n general, piping and e<uipment t-at isQdeadendedQ or t-at &an be made Qbottletig-tQ and t-at -as t-e potential 8or beingover pressured as a result o8 valve lea@age, mal8un&tion or ot-er reason, illre<uire a sa8ety#relie8 valve 8or prote&tion*

=*7* Sele&tion

Sa8ety#relie8 valves may be springloaded sa8ety#relie8 valves or pilotoperated sa8ety#relie8 valves and s-all be &erti8ied by t-e manu8a&turer as &on8orming to t-e re<uirements o8 Se&tion 3... o8 t-e %SM( )oilerand Pressure 3essel Code, IPressure )essels” / %i&ision 0.

=*7*2 Set Pressure

a 4-ere t-e overpressure prote&tion &riterion is 0 o8 t-emaimum alloable operating pressure, t-e overpressureprote&tive devi&eAs may be set to 8un&tion at a pressure slig-tly-ig-er t-an t-e maimum alloable operating pressure, but in no&ase to e&eed a set pressure o8 0! o8 t-e maimum alloableoperating pressure* 1-e maimum alloable operating pressureand t-e spe&i8ied minimum yield strengt- s-all apply to t-e ea@estelement o8 t-e system being prote&ted*

b .t s-all be re&ogni?ed t-at in a Class 6o&ation, design &riteriapermits maimum spe&i8ied minimum yield strengt- o8 72*

6imitations o8 >>*2Aa ill not in all &ases permit a setpressure as -igas 0! o8 t-e maimum alloable operatingpressure be&ause o8 t-e 7! spe&i8ied minimum yield strengt-limitation imposed by Se&tion >2*20AaA2Ai t-at ill apply in aClass 6o&ation*

& .8 a Code stamped, un8ired pressure vessel is &ontained it-int-e pipeline system being prote&ted, t-e set pressure o8 t-eoverpressure prote&tive devi&eAs &annot e&eed t-e stampedpressure rating o8 t-e vessel* M%'P in t-is &ontet means t-e



loest maimum alloable operating pressure, determined ina&&ordan&e it- t-e appli&able &odes and standards, o8 any&omponent o8 t-e prote&ted piping or e<uipment*

=*7*$ Relieving Capa&ity

Sa8ety#relie8 valves s-all -ave a relieving &apa&ity su88i&ient to prevent

t-e pressure o8 t-e prote&ted piping 8rom e&eeding 0 o8 t-eM%'P, or 7! o8 pipeline spe&i8ied minimum yield strengt- ASMS,-i&-ever is loer, based on t-e largest sour&e o8 overpressure t-atmay result 8rom any single 8ailure*

• .8 t-e sour&e o8 potential overpressure is a pressure &ontrol

valve, ot-er valve, or ori8i&eH t-en t-e minimum re<uired relie8&apa&ity is t-e maimum 8lo rate t-at &an be a&-ieved t-roug-t-e valve or ori8i&e* 1-is assumes an upstream pressure e<ualto t-e M%'P o8 t-e upstream piping Aor to t-e maimum sour&epressure i8 loer and assumes a donstream pressure e<ual tot-e M%'P o8 t-e prote&ted piping*

• .n t-e &ase o8 multiple pressure redu&tions, t-e rationale o8 t-e

pre&eding paragrap- s-all be applied to t-e piping asso&iatedit- ea&- su&&essive pressure redu&tion to t-e etent t-atsu&&essive piping se&tions -ave loer M%'Ps*

• .n t-e &ase o8 multiple parallel pressure &ontrol valves, t-e

sa8ety#relie8 valve &apa&ity s-all be based on t-e &ontrol valve-aving t-e largest &apa&ity* .8 a single &ontrol 8ailure -as t-epotential to &ause more t-an one &ontrol valve to 8ail open, t-e&apa&ity o8 t-e sa8ety#relie8 valve must be based on t-e total&apa&ity o8 t-e valves t-at &an 8ail open*

• 4-ere t-e potential overpressure sour&e is ot-er t-an a &ontrol

valve, valve, or ori8i&e, t-e sa8ety#relie8 valve &apa&ity s-all bebased on t-e maimum 8lo rate t-at &an be a&-ieved t-roug-t-e parti&ular piping or e<uipment* 1-is assumes an upstreampressure e<ual to t-e upstream M%'P Aor sour&e pressure i8loer and t-e donstream pressure e<ual to t-e M%'P o8 t-eprote&ted piping*

• Capa&ities o8 sa8ety#relie8 valves s-all be &al&ulated in

a&&ordan&e it- Se&tion 3... o8 t-e %SM( )oiler and Pressure3essel Code using manu8a&turers &erti8ied &apa&ity data andCPGs relie8 valve &apa&ity &al&ulation program AS4R.Rev!*ls B Conta&t CPG engineering department** Capa&ity&al&ulations must &onsider 8loing inlet pressure drop beteent-e sa8ety#relie8 valve and t-e 8a&ilities to be prote&ted, andba&@pressure resulting 8rom dis&-arge piping, &onne&ted ventlines, or blodon silen&ers*

• Sa8ety#relie8 valves s-all be designed and installed in a manner

t-at prevents -ammering* Do&umentation o8 design revie&onsideration o8 potential -ammering s-all be provided to CPG8or revie prior to a&&eptan&e o8 design*



=*7*" Sa8ety#Relie8 3alve .nstallation

Sa8ety#relie8 valve piping s-all &on8orm to t-e general re<uirements inSe&tion , “,ard Piping and -eaders”" o8 t-ese guidelines and to t-e8olloing:

• .nlet piping 8or sa8ety#relie8 valves s-all be as s-ort as pra&ti&aland s-all be designed to minimi?e pressure drop in t-e inletpiping* 4-ere sa8ety#relie8 valves are installed on buried-eaders, oversi?e risers s-all be employed* (&ept -erelimited by -eader si?e, suggested si?es 8or su&- risers are8ollos:

Sa8ety#Relie8 3alve

ominal .nlet Si?e

ominal Riser Si?e

2J "J

$J +J

"J =J

+J 0J

=J 2J

• 1ransition 8rom riser pipe diameter to sa8ety#relie8 valve inlet si?e

s-all be a&-ieved using a &on&entri& redu&er installed immediatelyupstream o8 t-e sa8ety#relie8 valve inlet or blo&@ valve*

• )lo&@ valves s-all be installed under sa8ety#relie8 valves to

provide 8or routine testing in situations -ere t-e sa8ety#relie8valve &annot readily be removed 8rom servi&e* .n su&- &ases atest ring and bleed valve s-all be installed beteen t-e blo&@valve and t-e sa8ety#relie8 valve*

• )lo&@ valves installed under sa8ety#relie8 valves s-all be 8ull

opening valves o8 t-e same si?e as t-e sa8ety#relie8 valve inlet,e&ept in &ases -ere e&essive inlet pressure drop ouldresult, -ereupon a valve it- .*D* e<ual to nominal riser si?emay be used* Su&- blo&@ valves s-all be lo&@ed, &arsealed orot-erise se&ured in t-e 8ull open position at all times ot-er t-an-en testing or maintaining t-e sa8ety#relie8 valve*

• Sa8ety#relie8 valves s-all dis&-arge at a sa8e lo&ation* % s<uare

ended sta&@ dis&-arging lo&ally at not less t-an = 8eet abovegrade, or above any ada&ent al@ing#or@ing sur8a&e, ande<uipped it- a rain &ap is t-e pre8erred met-odH but -erene&essary t-e dis&-arge s-all be &onne&ted to a vent or 8lare-eader, or to a blo don silen&er* (88e&t o8 ba&@pressure onsa8ety#relie8 valve operation s-all be &onsidered -en&onne&ting a sa8ety#valve to a vent or 8lare -eader*Consideration s-all also be made -en multiple dis&-argepoints are &onne&ted to a &ommon -eader, and -en multiple



dis&-arges &ould o&&ur as a result o8 a single &ontrol or &omponent 8ailure*

• Sa8ety#relie8 valve inlet and outlet piping s-all be ade<uatelysupported to provide 8or t-rust loads*

/./ REMO'E S4&'O)) "#E

CPG Columbia Gul8 1ransmission re<uires t-e installation o8 a remote &ontrolledisolation valve at meter stations it- 8lo rates greater t-an 0 mm&8d* 1-ese ill beused to prevent gas 8rom lea@ing t-roug- -en t-e 8lo &ontrol valveAs is#are &losed*

=*=* Remote S-uto88 3alves AStation .solation 3alve

Remote s-uto88 valves s-all be 8ull port double blo&@ and bleed ballvalves it- doublea&ting pneumati& piston a&tuators*

• Remote s-uto88 valves at meter stations s-all be &ontrolled

ele&troni&ally using open#&lose signals dire&tly 8rom t-e 8lo&omputer to t-e solenoid valves inter8a&ed it- t-e valvea&tuator*

• .n general, remote s-uto88 valves s-all be arranged to 8ail in last

position, but t-e spe&i8i& 8ailure mode s-all be evaluated 8orea&- meter station*

• Poer gas 8or remote s-uto88 valves s-all be 8iltered, dried gas

8rom t-e instrument gas supply system* See Se&tion =*+,I.nstrument Gas SupplyJ*

• Position 8eedba&@ e<uipment s-all be installed on remote s-uto88

valves* 1-is e<uipment s-ould in&lude 8ull open and 8ull &losed

limit sit&-es*

/.2 )#O D$REC'$O! "#E

CPG re<uires t-e installation o8 remote &ontrolled 8lo dire&tion valves t-at ill beused to route gas in t-e proper dire&tion t-roug- a bidire&tional measurementstation*

=*>* Remote 8lo dire&tion valves

Remote 8lo dire&tion valves s-all be 8ull port ball valves it- doublea&ting pneumati& piston a&tuators*

• Remote 8lo dire&tion valves at meter stations s-all be

&ontrolled ele&troni&ally using open # &lose signals dire&tly 8romt-e 8lo &omputer to t-e solenoid valves inter8a&ed it- t-evalve a&tuator*

• .n general, remote 8lo dire&tion valves s-all be arranged to 8ail

in last position, but t-e spe&i8i& 8ailure mode s-all be evaluated8or ea&- meter station*



Si?e '*D* 4all

1-i&@nessMaterial

1ype

:ieldStrengt-

AMinimumpsi

1ensileStrengt-

AMinimumpsi

Maimum4or@ingPressureA00OF

psi

#=J *2!Q ± *00!Q *02=Q ± *00!Q $+ SS $0,000 7!,000 =,!00

WQ *2!0Q ± *00!Q *0$!Q ± *00!Q $+ SS $0,000 7!,000 !,2!0

$#=Q *$7!Q ± *00!Q *0$!Q ± *00!Q $+ SS $0,000 7!,000 $,!00

VQ *!00Q ± *00!J *0$!Q ± *00!Q $+ SS $0,000 7!,000 2,+2!

VQ *!00Q ± *00!J *0">Q ± *00!Q $+ SS $0,000 7!,000 $,+7!

• 5ig- <uality, double8errule, stainless steel Sagelo@ tube

8ittings s-all be used* 1ubing s-all be @ept as s-ort as pra&ti&aland sloped to drain to t-e main gas line*

• .nstrument &ontrol lines belo grade s-all &onsist o8 J &arbonsteel elded valves and &arbon steel pipe to above grade*

• %ny belo grade tubing lines s-all be P3C &oated &oiled tubing*

o tubing &onne&tions s-all be made belo grade* 1ubing s-allbe prote&ted 8rom damage by inserting t-roug- an appropriate&onduit*

>**2 1emperature Sensing Conne&tions

%ll temperature sensing &onne&tions on main gas piping s-all bee<uipped it- a t-ermometer ell*

• 1-ermometer ells s-all be stainless steel bar sto&@ ells, it- in&- MP1 eternal t-reads, internal V in&- t-reads andbored to mat&- t-e parti&ular temperature element to beinstalled* 4ell s-an@ s-all be straig-t* Stepped ells areuna&&eptable*

• 1-ermoells s-all be dimensioned to provide a representative

gas temperature and s-all etend into t-e &entral t-ird o8 t-e gasstream*

• 1est ells s-all be e<uipped it- a t-readed plug and &-ain*

>**$ Sample Conne&tions

Conne&tions 8or gas samplers, gas &-romatograp-s or ot-er gasanalysis instruments s-all be lo&ated so as to obtain a representativesample under all normal operating &onditions*

• 1-e sample tap s-all be lo&ated su&- t-at it is pre&eded by aminimum lengt- o8 !D o8 straig-t pipe*

• Sample taps 8or multiple run meter stations s-all be lo&ated ont-e primary run or in gas piping -ere gas 8lo is &ontinuous*

• Standard sample &onne&tions s-all be e<uipped it- a probe



t-at etends into t-e &entral t-ird o8 t-e gas stream*

• 1-e standard sample probe tip s-all be &ut on a "!o angle andinstalled it- t-e longest side donstream*

• 4-ere t-e &onne&tion is in piping t-at &annot &onveniently be

isolated and removed 8rom servi&e, &onsideration s-all be given

to using retra&table sample probes e<uipped to allo t-eirinsertion or removal -ile t-e piping remains pressuri?ed*

• Sample &onne&tions 8or &-romatograp-s and moisture analy?ers

s-all use a Mustang gas sampling system t-at regulates t-e gasstream -ile -eating t-e gas above t-e -ydro&arbon de pointtemperature* Regulator type probes t-at regulate t-e samplepressure at t-e probe tip su&- as t-e Genie insertion proberegulator may be used i8 e<uipped it- suitable -eat tra&inglines and it- t-e spe&i8i& approval o8 CPG (ngineering*

• 1-e Mustang sampling system s-all be lo&ated ada&ent to t-e tap*

• Sample line lengt- s-all be limited to !0L unless prior ritten

CPG approval is obtained* Speed loops s-all be re<uired at t-e&-romatograp- building on any sampling lines in e&ess o8 !0 8t*

• %ll gas sample lines s-all &on8orm to t-e &-romatograp-

manu8a&turers instru&tions* .nsulated, -eat tra&ed stainlesssteel tubing lines #= in&- diameter s-all be used* %ll gassample lines s-all be e<uipped it- a Genie moisturemembrane 8ilter*

2. 'R"!SM$''ERS

For spe&i8i& material re<uirements, please re8er to t-e latest revision o8 CPGDesign Standard DS"00+ (le&troni& Measurement and Gas C-romatograp-

Spe&i8i&ations*

>*2* Multi3ariable 1ransmitters 8or Stati& Pressure, Di88erential Pressure E1emperature

Multi3ariable 1ransmitters 8or Stati& Pressure, Di88erential Pressure E1emperature s-all only be used on ori8i&e runs on Columbia Gul81ransmission stations* .ndividual transmitters s-all be used on all ot-er measurement at Columbia Gas 1ransmission and Columbia Gul81ransmission stations*

Multi3ariable transmitters ARosemount $0>! s-all be used 8or ori8i&e,

measurement appli&ations at Columbia Gul8 1ransmission* 1ransmitterss-all be dire&t mounted on t-e meter run it- an integral 8ive valvemani8old*

>*2*2 1ransmitters 8or Stati& Pressure 'nly

1ransmitters it- integral to valve mani8old ARosemount $0! s-allbe used 8or appli&ations -ere only a pressure measurement isre<uired, su&- as ultrasoni&, turbine, Coriolis positive displa&ementmeter stati& pressure and pressure donstream o8 a pressure &ontrol



valve* 1ransmitters s-all be mounted on t-e meter bodies or as near t-e pro&ess &onne&tion point as pra&ti&al on a 2J instrument stand*

>*2*$ 1emperature Sensing (lements AR1Ds

4-en using t-e Rosemount $0>!, t-e temperature sensing element,Rosemount 00+=, s-all be 00o-m platinum, $ire R1Ds it- $+

stainless steel 0*2!J diameter s-eat-s &omplete it- a spiral stainlesssteel armored etension &able* 1-e Rosemount 00+= sensor s-all bedire&t mounted to a Rosemount $""P transmitter 8or ultrasoni&,turbine, and positive displa&ement measurement* 1-e sensors s-all beinserted into t-e t-ermoell t-at s-all etend into t-e middle t-ird o8 t-egas stream*

2.( CO!'RO##ERS

>*$* 1ube Sit&-ing Control

'pen#&lose signals to valve a&tuators on tube sit&-ing valves s-all be

provided 8rom t-e ele&troni& 8lo measurement e<uipment* Manualopen#&lose valve a&tuation s-all be provided on t-e valve &ontrolsalloing manual lo&@out* ASee Se&tion >*+, “nstru!ent Gas Supply”" 8or poer gas re<uirements*

>*$*2 6imit Sit&-es

9se o8 valve position limit sit&-es in t-e &ontrol pro&ess ill be&oordinated it- CPG (ngineering to insure t-e 8lo &omputer load illbe &ompatible it- t-eir use* Proimity limit sit&-es AGo or e<ual illbe used* %ny modulating &ontrol valve s-all send a&tual valve position8eedba&@ to t-e CPG R19 indi&ating t-e valve per&entage open*Mi&rosit&-es s-all not be used*

>*$*$ Flo ControlControl signals to t-e positioner#a&tuator on 8lo &ontrol valves s-all beprovided eit-er dire&tly 8rom t-e ele&troni& 8lo measuremente<uipment or via a motor &ontrolled regulator type ele&troni& topneumati& transdu&er* 1-e ele&troni& signal to pneumati& signaltransdu&er 8or 8lo &ontrol s-all be a Fair&-ild Model 2"KFM o )leedRemote Set Regulator ARSR*

>*$*" Pressure Control

Control signals 8or pressure &ontrol valves ill be provided by eit-erele&troni& 8lo measurement e<uipment as des&ribed in Se&tion >*$*$,or a pneumati& pressure &ontroller sensing pressure dire&tly 8rom t-e

pro&ess &onne&tion and providing a dire&t pneumati& output to t-e valvepositioner#a&tuator* 6o&al pneumati& pressure &ontrollers s-all &omee<uipped it- an auto manual station B see belo*

>*$*! Manual Control

1-e pneumati& &ontrol signal to t-e a&tuator or positioner s-all -ave anI%uto#ManualJ &ontrol station or loading regulator to allo t-e valve tobe manually positioned*



>*$*+ %utomati& 'verRide Control

%utomati& override &ontrol is a&&omplis-ed by providing automati&sele&tion o8 &ontrol signal output beteen dual &ontrollers using apneumati& signal sele&tor sit&-#relay &apable o8 sele&ting eit-er t-e-ig-er or loer &ontrol pressure signal* %utomati& override &ontrol &an

also be a&&omplis-ed using ele&troni& sele&tion*2.+ ODOR$?"'$O!

• 4-ere &ustomer gas odori?ation is re<uired, t-e &ustomer s-all install, onand operate said e<uipment*

• 4-ere Columbia gas odori?ation is re<uired Asu&- as P'Rs into Columbia,

t-e &ustomer s-all install and on said e<uipment* Columbia ill operatesaid e<uipment at P'Rs*

• 1-e odori?ation e<uipment s-all be lo&ated donstream o8 t-e

measurement and regulation e<uipment but upstream o8 t-e meter stationoutlet blo&@ valve*

•1-e &ustomer must ee&ute a Meter Set %greement at ne stations Aor ateisting sites an (M %greement it- CPG i8 -ando88 o8 measurementsignals is ne&essary 8or &ustomer odori?ation &ontrol*

2.* G"S S"MP#$!G

4-ere &ontinuous gas sampling 8or measurement purposes is re<uired, Aatstations t-at 8lo less t-an 0 mm&8d a gas sampler APG. .nter&eptor ModelPF$G6/2 s-all be used* Sample &onne&tions s-all be in a&&ordan&e it-Se&tion >**$, “Sa!ple Connections”" above, and in a&&ordan&e it- t-e sampler manu8a&turers instru&tions* 1-e &ontinuous sampler s-all be installed in aninsulated -eated en&losure*

2.- $!S'R&ME!' G"S S&PP#3

Pneumati& instruments and &ontrol valves ill normally be poered it- naturalgas tapped 8rom t-e meter station piping* % separate supply line 8or ea&-instrument operated &ontrol valve or pilot operated valve AP5MS% >2*20$ Ab A>is re<uired* 1-e system s-all be designed su&- t-at one 8ailure ill not ma@e bot-t-e regulator and t-e overpressure prote&tive devi&e inoperative* 1-e tap ill belo&ated upstream o8 t-e &ontrol valve* 1-e supply line s-all be V in&- stainlesssteel tubing i8 above grade, and pipe or &oated tubing i8 belo grade* o tubing&onne&tors s-all be installed belo grade* .nstrument supply systems ill providepneumati& pressure to t-e &ontrol valve a&tuator or positioner Atypi&ally 00 psig

and a loer pressure Atypi&ally 20 or $! psig B a + to $0 psig output signal ispre8erred over t-e $ to ! psig signal to t-e pneumati& pressure &ontroller* 1-esesupply systems ill in&lude a 8ilter to ensure a &lean supply gas Asee CPG standarddraing ..S2* .n some &ases, espe&ially in systems -ere t-e gas &ontainsli<uids, a &atalyti& -eater s-ould be in&luded as part o8 t-e system* .8 a relie8 valveis in&luded as part o8 t-e system, t-e outlet must be piped outside o8 t-e building*

• For sa8ety, t-e poer gas tap 8or ea&- s-uto88 # se<uen&ing valve s-all belo&ated so t-at t-e sour&e o8 t-at valves poer gas is also blon don



along it- t-e piping isolated by t-e s-uto88 # se<uen&ing valve* 1-us, t-evalve &annot be a&&identally opened to pressuri?ed piping*

1, E#EC'RO!$C ME"S&REME!' "!D 'E#EME'ER$!G

• (le&troni& Flo Measurement A(FM and 1elemetry is re<uired 8or all ne meter

stations*

• Gas ;uality measurement devi&es ill be determined based upon t-e re<uirements o8 ea&- individual meter station* See Se&tion 0*2 Gas ;uality Devi&es*

• 1-e &ustomer must ee&ute an I(M %greementJ it- CPG 8or -ando88 o8 measurement signals -ere CPG -as t-e only available measurement*

1,.1 )#O COMP&'ERS

0** General Re<uirements

Flo &omputers s-all a&&ept inputs 8rom t-e appropriate instrumentsdes&ribed in Se&tion >, “nstru!entation”" o8 t-ese guidelines and 8romgas &-romatograp-s or ot-er analyti&al instruments -ere installed*

0**2 CPG R19 1ypes

For spe&i8i& 8lo &omputer sele&tion &riteria and material spe&i8i&ations,please re8er to t-e latest revision o8 CPG Design Standard DS"00+ (le&troni& Measurement and Gas C-romatograp- Spe&i8i&ations*

CPG s>all select t>e specific eAuipent to ;e used.

1,. G"S %&"#$'3 DE$CES


ote ne re&eipts s-all submit a gas sample analysis representing epe&ted gas&omposition* S-ould t-e gas &omposition &-ange, CPG reserves t-e rig-t to installgas <uality devi&es determined ne&essary by t-e CPG engineer*

0*2* C-romatograp-

% &-romatograp- s-all be installed i8 any o8 t-e 8olloing &riteria is met:

• Flo rates o8 0 mm&8d or more

• 9ltrasoni& meter station

• Gas ;uality outside o8 1ari88 spe&i8i&ations

• Gas <uality varian&es o8 0 )19 or more

• )idire&tional meter station

4-ere 20 volt poer is available a Rosemount Danaly?er !70&-romatograp- s-all be installed* 4-ere only 2" volt poer is available a



Rosemount Danaly?er 700 &-romatograp- s-all be installed* %n %))=20+ &-romatograp- may only be installed it- ritten permission o8 t-elo&al MER (ngineer* Station 8lorates beteen mm&8d and 0 mm&8dre<uire installation o8 an automati& gas sampler* )elo mm&8d a gassample 8or billing is re<uired be8ore t-e station &an be pla&ed in servi&eand anytime t-erea8ter s-ould it be suspe&ted t-at t-e gas <uality -assigni8i&antly &-anged*

C-romatograp- sample &onne&tions s-all be in a&&ordan&e it-Se&tion >**$, “Sa!ple Connections”.

Calibration gas s-all be veri8ied and approved by CPG* Calibration gass-all be installed so t-at it ill not be eposed to temperatures belo its-ydro&arbon de point*

0*2*2 Moisture analy?er

Moisture analy?ers s-all be installed at all meter stations delivering 00

mm&8d or more into CPG and at smaller stations it- a moisturereading o8 7 lbs per mm&8 or greater a8ter de-ydration* $n soeapplications6 an autoatic s>utoff valve ay ;e reAuired to s>ut int>e easuring station if t>e gas de@ point eceeds set point for aspecified tie period.

• % Spe&trasensors SS!00 Moisture analy?er it- an etended range

o8 0*! to 00 lbs o8 ater per mm&8 gas plus or minus 2 o8 readingis re<uired 8or stations Aover 0 mm&8d or i8 re<uired by CPG inspe&i8i& appli&ations by agreement* % Spe&trasensors SS2000Moisture analy?er it- an etended range o8 0*! to 00 lbs o8 ater per mm&8 gas plus or minus 2 o8 reading is re<uired 8or large

&apa&ity stations Aover 00 mm&8d*

• 1-e gas sample inlet pressure to t-ese devi&es is limited to 0 psig*

0*2*$ 5ydrogen sul8ide

5ydrogen Sul8ide analy?ers s-all be installed at all meter stations it-initial gas sample indi&ating t-e presen&e o8 -ydrogen sul8ide in t-eamount o8 #" grain per -undred &ubi& 8eet* "n autoatic s>utoffvalve is reAuired to s>ut in t>e easuring station if t>e gasreceived into t>e CPG systes eceeds t>e >ydrogen sulfide liit.

• 5ydrogen sul8ide analy?ers s-all employ &-emi&al &ell -ydrogen

sul8ide analy?ers*0*2*" 'ygen sensors

'ygen sensors s-all be installed at all meter stations it- initial gassample indi&ating t-e presen&e o8 oygen in t-e amount o8 byvolume or greater*

• 'ygen sensors s-all employ a repla&eable &-emi&al sensor-i&- is eposed to a lo pressure gas sample*



0*2*! 't-er Devi&es

5ydro&arbon Depoint and#or C'2 analy?ers re<uirement ill bedetermined by t-e CPG (ngineer and 'perations*

1,.( 'E#EME'ER$!G


Data may be telemetered via telep-one, &ellular data unit, satellite or radio*

CPG s-all be responsible 8or sele&tion o8 t-e &ommuni&ation met-odAs to be usedand s-all sele&t t-e spe&i8i& e<uipment to be employed* e&essary permits s-allbe obtained by Customer or as spe&i8ied in t-e .nter&onne&t %greement*

1,.+ POER S&PP#3


Pur&-ased poer A20 3%C s-all be used -enever available to poer t-eele&troni& measurement and SC%D% e<uipment* Re8er to table 0**2 8or Poersupply options

0*"* 9PS System

1-e 9PS system s-all in&lude batteries and battery &-arger to provide DCpoer* 1-e 9PS system s-all be e<uipped it- system ItroubleJ alarm t-at

de8ine %C input voltage loss and lo DC poer output* )attery &-argerss-all be e<uipped it- over voltage prote&tion* Su88i&ient battery &apa&itys-all be provided to poer t-e (FM load 8or a minimum o8 "= -ours*

11 3"RD P$P$!G "!D 4E"DERS1-is se&tion des&ribes re<uirements 8or t-e design, installation and testing o8 meter stationpiping* %ll pro&ess piping s-all be designed, installed and tested in a&&ordan&e it- allappli&able re<uirements o8 1itle "> CFR Part >2*

11.1 DES$G! PRESS&RE "!D 'EMPER"'&RE

1-e design pressure and design temperature 8or all piping systems it-in t-e

meter station s-all be establis-ed based on t-e most severe &onditions appli&ableto t-e spe&i8i& piping systems* See Se&tions 2*2*=, “%esign Pressure” and 2*2*>,“%esign Te!perature” * 1-e design o8 all meter station pro&ess piping s-all bebased on a design 8a&tor o8 0*!0 in a Class , 2 or $ lo&ation, and a design 8a&tor o8 0*" in a Class " lo&ation in a&&ordan&e it- P5MS% Part >2**

11. P$PE S$?$!G

%ll piping s-all be &onservatively designed 8or t-e maimum 8lo rate as per



Se&tion 2*2*$, “Flo( $ates”" by using appropriate 8lo e<uations and applying t-e8olloing guidelines*

*2* Station Main Gas Piping

Main gas piping and pipeline taps s-all be si?ed so t-at t-e maimum

gas velo&ity 8alls it-in a range o8 +! to =0 FPS* 1-is velo&ity s-all beevaluated at t-e minimum pressure and maimum temperatureasso&iated it- t-e design 8lo rate*

*2*2 Regulation E Measurement 5eaders

Regulation E Measurement -eaders s-all be si?ed so t-at t-e maimumgas velo&ity 8alls it-in a range o8 $0 to "0 FPS* 1-is velo&ity s-all beevaluated at t-e minimum pressure and maimum temperatureasso&iated it- t-e design 8lo rate*

*2*$ Station )ypasses

5ig-er gas velo&ities are a&&eptable 8or bypasses and ot-er piping t-at is in

servi&e only intermittently or 8or s-ort durationsH but &onsideration must begiven to potential 8or noise and erosion resulting 8rom -ig- velo&ity in su&-piping* 3elo&ities above 200 8eet per se&ond s-all be avoided*

*2*" Meter 1ube .nlet#'utlet Piping

Risers and ot-er inlet#outlet piping to individual meter tubes ill normally besi?ed based on t-e si?e o8 t-e meter tube, rat-er t-an on spe&i8i& pressuredrop &onsiderations* For ne installations, meter tube inlet#outlet pipingand valves s-all -ave t-e same nominal diameter as t-e meter tube* 1-enumber o8 bends in piping Aimmediately, i*e* !0 pipe diameters upstream o8 t-e meter s-all be minimi?ed* Multiple out o8 plane bends s-all not bealloed at t-e meter runs and &onsideration s-all be given to installation o8

above grade inlet -eaders on 9SM installations**2*! 't-er Considerations

(ngineering udgment must be eer&ised in applying t-e guidelinesabove* For spe&i8i& situations good design re<uires &onsideration o8 allt-e 8a&tors appli&able to t-e design o8 a parti&ular 8a&ility* Su&- 8a&torsmig-t in&lude:

• 1-e e&onomi&s o8 sele&ting a larger or smaller pipe si?e and t-e

impa&t o8 t-e resulting loer or -ig-er pressure drop on t-espe&i8i& piping

• 1-e per&entage o8 time t-at t-e maimum design 8lo rate ill

a&tually prevail• Conne&tion to or &ompatibility it- eisting 8a&ilities• %vailability o8 eisting sto&@ or surplus materials

• Future grot-



11.( GE!ER"# P$P$!G DES$G!

*$* Con8iguration#6ayout

Piping must be designed to a&&ommodate t-e pro&ess re<uirementsand must be designed it-in t-e &onstraints o8 t-e site dimensions andpro8ile, and t-e lo&ation o8 station inlet and outlet &onne&tions*

(a&- meter station s-all -ave an inlet and outlet valve to allo t-emeter station to be isolated 8rom &onne&ted 8a&ilities, and s-all -ave atleast one blo don valve to allo t-e isolated station piping to bevented*

• %n appropriately si?ed blo don along it- tap 8or valve and

pressure gauge s-all be provided on all piping se&tions &apable o8 being isolated*

• % &-e&@ valve s-all be provided near t-e tap valve on t-e CPG

pipeline 8or bot- deliveries and re&eipts in unidire&tional stations*

•Meter tubes and regulator runs s-all be arranged to drain to t-e-eaders* %ll su&- -eaders, and ot-er piping lo points, s-all -avevalved drains#sip-ons, so t-at t-ey &an be &-e&@ed 8or li<uid, andany a&&umulated li<uid removed*

• Piping dead ends and lo areas -ere li<uids and ot-er &orrosiveelements &an &olle&t are not permitted*

*$*2 5eader Con8iguration

• 4-en multiple meter runs are used, t-e -eaders s-all be installedas F or 1 type &on8igurations*

• 5eader piping s-all be &on8igured to eliminate dead legs -eredebris &olle&ts and promotes &orrosion*

• 5eaders it- multiple inlets#outlets 8or meter tubes s-all besymmetri&al and arranged to e<uali?e 8lo t-roug- t-e meter tubes*

• Consideration s-all be given to installation o8 above grade inlet-eaders at t-e same elevation as t-e 9SM installations*

*$*$ Piping

1o t-e maimum etent pra&ti&al, main gas piping s-all be buried toprovide 8or maimum prote&tion and minimum maintenan&e*

• Pro&ess piping s-all be oined by elding or it- 8langes*

• Flanges rated %S. +00 and loer s-all be raised 8a&e 8langes*Ringoint 8a&ing is pre8erred 8or 8langes rated %S. >00 and -ig-er,e&ept -ere raised 8a&ing is re<uired 8or assembly#disassembly or

to mate it- raised 8a&e 8langes on e<uipment*• 1-e 8lange yield strengt- s-all be e<ual or better t-an t-e pipe to

-i&- it ill be elded*

• Flanged oints Ait- t-e e&eption o8 8langes on -ot tap valvest-readed oints, or tubing 8ittings s-all not be installed underground*

• Flanges on -ot tap valves s-all be raised 8a&e*

*$*" Flanged &onne&tions

Flanges s-all be eld ne&@, raised 8a&e and bored to meet t-e all



t-i&@ness o8 t-e &onne&ting pipe*


a&&ordan&e it- %SM(#%S. )+*!, IPipe Flanges and FlangedFittings” * 4-ere %0! 8langes are to be elded to -ig- yield

strengt- pipe, ASMS U $!000 psi 8lange -ubs s-all be spe&iallyprepared to develop t-e 8ull strengt- o8 t-e pipe* %lternately,8langes s-all be in a&&ordan&e it- MSS SP"", ISteel PipelineFlanges”" and -ave a yield strengt- mat&-ing t-at o8 t-e pipe to-i&- t-ey are elded* Reference CPG flange specs )#G81,( )#G 1,+.

• )olts s-all be %S1M %>$ Grade )7 8ull t-read studs, it- %S1M %>" Grade 25 -eavy -e nuts and &admium plating*Reference CPG spec MS.*,.,,1.

• Flange gas@ets s-all be pre&ision spiral ound gas@ets, it-

nonasbestos 8iller, stainless steel inding and #=J t-i&@ internaland eternal stainless steel gauge rings*

• 1-e bolt tor<ue guide belo s-all be used*

• 1-e 8olloing re&ommended tor<ue values apply to %S1M %>$,

Grade )7 stud bolts and %S1M %>"H Grade 25 -e nuts, it-t-e t-reads &leaned and a lubri&ant applied to t-em* For tor<uere<uirements using ot-er bolt types, &onta&t t-e CPG(ngineering Department or reference CPG )lange Gaset andBolting Spec CM<'81.

Bolt Si9e '>reads'orAue)t. #;s.

Bolt Si9e '>reads'orAue)t. #;s.

V $ !$0 $#= = ++0=>0

!#= !0+! V = =>0,0!0

X 0 00$0 !#= = ,0$!,2!

7#= > 7!2! 7#= = ,!+!,="!

= 2202=0 2 = 2,2!2,!=!

#= = $70"70 2 V = $,7!!","!

W = "$!!70

*$*! 4elding

%ll elding s-all be done in a&&ordan&e it- t-e CPG 4elding Manual*

%ll relevant test do&umentation s-all be 8orarded to t-e CPG



representative prior to installation o8 pre8abri&ated assemblies or tie inelds* %ll test do&umentation o8 onsite installation ill li@eise be8orarded to t-e CPG representative*

%ll elded piping s-all meet t-e 8olloing re<uirements:

;uali8ied elders s-all per8orm all elding using <uali8ied pro&edures ina&&ordan&e it- t-e Columbia Pipeline Group 4elding Manual* % &opyo8 t-at do&ument s-all be provided it- t-ese Meter Station DesignGuidelines to 8abri&ation s-ops and &ontra&tors responsible 8or t-edesign, 8abri&ation, or installation o8 CPG Meter Stations*

%ll butt elds si in&- and larger on pipe operating at a stress level o8 20 and greater s-all be 00 radiograp-i&ally eamined* Four in&-and smaller elds, or elds on pipe it- a stress level o8 less t-an 20s-all be visually inspe&ted or spot &-e&@ed*

4elds t-at &annot be e88e&tively eamined by radiograp-y s-all be nondestru&tively eamined by dye penetrant, magneti& parti&le, ultrasoni&or ot-er appropriate means* %lternate means o8 D1 inspe&tion s-allbe approved by CPG prior to use*

%ll radiograp-y and ot-er nondestru&tive eaminations s-all beper8ormed and interpreted by <uali8ied te&-ni&ians, using <uali8iedpro&edures in a&&ordan&e it- %P. Standard 0"*

4elds 8ailing to meet t-e a&&eptan&e &riteria o8 %P. Standard 0" s-allbe repaired Ato t-e etent alloed by %P. Standard 0" or repla&ed*

%ll eld repairs and repla&ement elds s-all be sube&ted to t-e same

eamination as t-e original eld*

%lternately, elding may be done by elders and pro&edures <uali8iedunder Se&tion .K o8 t-e %SM( )oiler and Pressure 3essel Code,I1elding Quali*ications” , in -i&- &ase nondestru&tive eaminationss-all &on8orm to Se&tion 3 o8 t-e %SM( )oiler and Pressure 3esselCode, INondestructi&e E2a!ination” *

1-e Kray reportAs s-all in&lude s@et&-es o8 t-e meter and ot-er pro&esspiping and s-all &learly identi8y ea&- ray relative to ea&- eld*

Stru&tural elds s-all meet t-e re<uirements %4S D*

*$*+ Pressure 1esting

%ll pro&ess piping s-all be sube&ted to -ydrostati& strengt- and lea@tests in a&&ordan&e it- P5MS% Part >2*!0 t-roug- >2*!7 and ina&&ordan&e it- t-e 8olloing:

• %8ter t-e tests des&ribed in Se&tion *$*! “1elding” are



&ompleted, 8ield -ydrostati& tests s-all be &ondu&ted -en t-epro&ess piping installations are essentially &omplete, using ater as t-e test medium*

• 1-e -ydrostati& test pressure s-all be a minimum o8 *! times

t-e design pressure o8 t-e pro&ess piping* 1-e maimum test

pressure s-all not e&eed t-e maimum alloable testpressures o8 any o8 t-e &omponents*

• 1-e test duration s-all be at least = -ours, as do&umented by a&ontinuous re&order*

5DR ' S 1 % 1 . C 1 (S 1 ( ; 9 . P M ( 1 % D R(P'R 1 R ( ; 9 . R( M ( 1 S :1est reports:

S-all be legible*

S-all -ave bot- pressure and temperature re&orded on t-esame &-art*

S-all in&lude &alibration reports 8or t-e pressure and

temperature re&orders and s-all eviden&e t-at &alibration it-in$0 days o8 t-e -ydrostati& test date*

S-all in&lude ational .nstitute o8 Standards and 1e&-nology A.S1&erti8i&ation papers 8or t-e pressure and temperature standardsused in t-e above pressure and temperature re&orders &alibrations*1-e a&&ura&y o8 t-ese standards s-all be tra&eable to .S1 it-int-e last 2" mont-s*

• Meter tubes, vessels or ot-er e<uipment or &omponents

t-at -ave been sube&ted to an ade<uate -ydrostati& testprior to installation, may be e&luded 8rom t-e 8ield-ydrostati& tests*

• 1urbine, 9ltrasoni& or rotary meters s-all not be in&ludedin -ydrostati& tests*

• .nstruments s-all be e&luded 8rom t-e -ydrostati& tests,but instrument root valves s-all be in&luded*

• %ll piping and e<uipment s-all be t-oroug-ly drained anddried -en -ydrostati& testing -as been su&&ess8ully&ompleted*

!O'E

itrogen testing is alloable under &ertain &onditions it- prior ritten approval 8rom a CPG Design (ngineer*

*$*7 3alves

%ll valves s-all be pur&-ased to CPG alve Specification "#81,1 and %ppendi C %ppr oved 3endor 6ist*

3alves in main gas piping may be ball, gate or plug valves, e&ept asot-erise provided -erein*



• Fullopening ball valves s-all be used 8or meter tube isolationvalves*

• 3alves 8or above grade installation may be 8langed end, eldend, or eld end by 8lange end*

• 3alves +J and larger s-all be provided it- gear operators* 3alves8or underground installation s-all -ave eld ends it- t-e e&eptiono8 valves used 8or -ot tapping -i&- s-all be eld end by raised8a&e 8lange end* For large diameter eld end valves, &onsiderations-all be given to -aving t-e valves 8urnis-ed it- pipe pups eldedon and tested by t-e valve manu8a&turer*

• 3alves installed belo grade s-all be e<uipped it- stemetensions to elevate t-e manual or poer operators to anelevation $ to "L above grade* )uried valves re<uiringlubri&ation s-all be e<uipped it- etended lube lines andetended body bleed lines*

*$*= )ran&- Conne&tions

)ran&- &onne&tions s-all meet t-e re<uirements o8 t-e appli&able &odesand standards and s-all be in a&&ordan&e it- CPG Standard DS10and t-e 8olloing:

• Forged straig-t tees and redu&ing outlet tees are pre8erred 8or

bran&- &onne&tions -ere t-e bran&- &onne&tion e&eeds t-emainline diameter by +7 and -ere e&onomi&ally 8easibleA&onsiderable gas loss or servi&e outage is una&&eptable*

• 5eaders it- multiple outlets may be etruded outlet -eaders or may be made using tees* Depending on t-e si?e and

&on8iguration, etruded outlet -eaders may be more e&onomi&al-en installation &osts are &onsidered* 4-en etruded -eadersare used, &onsideration s-all be given to in&luding risers, drainsand ot-er &onne&tions 8abri&ated and tested as a part o8 t-e-eader assembly at t-e manu8a&turers s-op*

• 4-ere t-e bran&- to -eader ratio is smaller t-an t-at available it-

standard tees, bran&-es may be made it- a standard tee it- aredu&er on t-e bran&-H t-roug- t-e use o8 an etruded outlet teeH or e&ept as limited belo, it- a 8orged bran&- outlet 8itting*

• 4elding outlet 8ittings Aeldolets, t-readolets, et&* are limitedto bran&-es 2Q nominal si?e and smaller unless rittenpermission 8rom t-e CPG Design engineer is obtained*

4eldolets greater t-an "J s-ould not be used**$*> 5ot 1aps

5ot taps on CPG pipelines s-all be made only by CPG personnel8olloing establis-ed CPG design and pro&edures, or by a CPGapproved Contra&tor under CPG supervision* 1-e nominal bran&-diameter s-ould not be greater t-an +7 o8 t-e nominal -eaderdiameter* 1-e 8lange on t-e -ot tap valve s-all be raised 8a&e* 1-edesign and installation o8 t-e -ot tap s-all &on8orm to all CPG Plans and



Pro&edures and t-e 4elding Manual*

11.+ P$P$!G M"'ER$"#S

Pipe, valves, 8ittings, 8langes and ot-er pressure &ontaining &omponents used inpro&ess piping s-all &on8orm to all relevant CPG Spe&i8i&ations and t-e re&ogni?ed

industry &odes and standards appli&able to t-e parti&ular material and to t-e &odesand standards re8eren&ed in t-e P5MS% 1itle "> CFR >2 %ppendi )*

11.* C"'4OD$C PRO'EC'$O!

Copanies designing cat>odic protection at CPG stations s>all utili9e t>elatest specifications and aterials provided ;y t>e CPG $ntegrityManageent Departent.

Piping in meter stations s-all be &at-odi&ally prote&ted as 8ollos:

*!* .nsulating Flanges

Meter station piping s-all be ele&tri&ally isolated 8rom t-e &onne&tedpipelines or ot-er 8a&ilities t-roug- t-e use o8 insulating 8langes installedat t-e inlet and outlet o8 t-e meter station, on t-e station side o8 t-e inletand outlet valves* 9se o8 underground insulation oints is dis&ouragedand insulating 8langes underground s-all be pro-ibited*

• .nsulating 8langes s-all be assembled it- 8ull8a&ed insulating

gas@ets it- 'rings, insulating sleeves and double insulatingas-ers on t-e 8lange bolts*

• % test station in a&&ordan&e it- CPG Draing CP.2 s-all beinstalled at ea&- insulation oint*

• .nsulated 8langes s-ould be prote&ted it- nonmetalli& 8langeprote&tors and t-e void 8illed it- diele&tri& grease per CPGpro&edure 70*00*0"* %ll ot-er above grade 8langes s-all beprote&ted it- metalli& 8lange prote&tors per CPG pro&edure70*00*0"*

*!*2 Cat-odi& Prote&tion System

1-e meter station piping oned or operated and maintained by CPG s-allbe prote&ted it- an impressed &urrent &at-odi& prote&tion systemH eit-erit- a dedi&ated system, or -ere pra&ti&al, by bonding to t-e &at-odi&prote&tion system o8 a &onne&ted pipeline* %lso a&&eptable is t-e use o8magnesium anodes provided t-e station piping is isolated 8rom anyimpressed &urrent CP systems* Pipelines sus&eptible to indu&ed &urrent

8rom poer lines s-all be isolated 8rom stations and t-e stations prote&tedusing magnesium anodes*

*!*$ 1ubing.nsulating 9nions

(le&tri&ally insulated tubing unions s-all be installed to isolate transmitterslo&ated outside o8 t-e meter station isolation 8langes, 8rom t-e meter stationpiping* %ny ele&tri&al &onne&tions 8or poer or &ommuni&ations must beisolated 8rom station piping by eit-er a diele&tri& tube 8itting or diele&tri&8lange insulators on topor@s*



*!*" Corrosion Coupons A.nternal

% &orrosion &oupon -older s-all be installed in t-e main gas stream atea&- meter station t-at delivers gas into t-e CPG pipeline -enre<uired by t-e CPG Design (ngineer*

*!*! Painting

'n CPG oned or operated and maintained 8a&ilities, all above groundpiping s-all be abrasive blasted to SSPC SP0 or %C( o 2 near-ite metal 8inis- and painted it- t-e 8olloing &oating spe&i8i&ationsas per t-e latest edition o8 CPG Procedure 0,.,,1.,2*

%ll paint materials s-all be stored, t-inned, applied and &ured ina&&ordan&e it- t-e manu8a&turers instru&tions*

Piping and e<uipment 8urnis-ed it- an a&&eptable and &ompatibles-op applied primer need not be reblasted and reprimed* .n su&-&ases, de8e&ts in s-op primer s-all be repaired and intermediate and

8inis- paint applied as above*

.nstruments, nameplates, stainless steel, galvani?ed steel, brass,aluminum and glass s-all not be painted and s-all be mas@ed andprote&ted during abrasive blasting and painting* Mas@ing material s-allbe removed upon &ompletion o8 &oating*

*!*+ Coating o8 )uried Piping ACPG 'ned or Cat-odi&ally Prote&ted

%ll buried piping s-all be &oated as outlined belo* 9nderground&oating s-all etend beteen + and 2 in&-es above grade*

• Piping to be 8ield &oated s-all be t-oroug-ly &leaned and sur8a&esprepared* %brasive blasting to SSPC SP0 or %C( o 2 Qnear-iteQ metal is t-e re<uired sur8a&e preparation met-od 8or all 8ieldapplied &oatings and is re<uired 8or &oal tar epoy*

• %&&eptable &oatings 8or underground piping in&lude:

Fusionbonded, t-in8ilm epoyCoaltar epoy A8or &oal tar &oated pipe and valvesDenso Protal 7200SPC SP2===Primer, 4a 1ape, Glass 'uter 4rap A8or over &oatingtransition areas beteen &oal tar and epoy &oatings

• Sur8a&e preparation, appli&ation and &uring o8 primers and

appli&ation and &uring o8 8ield applied &oatings and 8ield ointss-all be in a&&ordan&e it- t-e manu8a&turers instru&tions andCPG Pro&edure 70*00*02+*

• %ll &oatings on buried piping s-all be visually inspe&ted and

inspe&ted it- an ele&troni& -oliday dete&tor per CPGP ro& e d u r e 7 0 * 0 0 * 0 $ B Pi pe C o a t ing B 5 o li d a y D ete& t ionP ro& e d u r e* %ny damaged &oating or -olidays dis&overed s-allbe repaired and reinspe&ted prior to ba&@8illing t-e piping*

http://my.nisource.net/policycenter/cpgsandp/Standards_Procedures/Pipe%20Coating%20-%20Holiday%20Detection%20Procedure.pdf











*!*7 Coating 5ot 1ap Flange

1-e -ot tap 8lange ill be &oated it- Denso Protal 7200 per CPGProcedure 0,.,,1.,-* 1-e 8lange ill be 8illed it- 1renton .nner&oatFlange Fill* Si in&-es on bot- sides o8 t-e 8lange, t-e pipe, bolts, nutsand 8lange ill be &oated it- Denso Paste Primer* 1-e area beteen

t-e pipe and t-e 8lange ill be over&oated it- Denso Pro8iling Masti&to &reate a smoot- transition* Starting at t-e edge o8 t-e primer, t-earea ill be &oated it- Denso Densyl 1ape* 1-e taped area ill t-enbe over&oated it- Denso Glass 'verrap*

*!*= Corrosion Coupon 1est Station A(ternal

% &orrosion &oupon test station ill be installed at t-e measuring station perstandard draing CPCC* 4ires ill be &onne&ted to t-e pipe using a1-ermite Ai*e* Cadeld &onne&tion per CPG Procedure 0,.,,.,+(*1-ermite elds ill be &oated per CPG Procedure 0,.,,1.,-*

*!*> 4eld 'ver Sleeves

5ot tap 8ull en&ir&lement rein8or&ing sleeves must be greased and&oated as per CPG Procedure 0,.,,1.,+*

*!*0 Con&rete Sleepers

)elo grade piping resting on &on&rete supports s-all be &oated per CPGProcedure 0,.,,1.,- it- "0 mils DF1 o8 eit-er Denso Protal 7200 topart epoy &ompletely around t-e &ir&um8eren&e o8 t-e pipe 8or a lengt- o8 +in&-es past ea&- end o8 t-e &on&rete 8orm* .8 t-e pipe as mill &oated it-F)(, apply $0 mils DF1 per CPG pro&edure 70*00*0$2 o8 eit-er t-e DensoProtal 7200 dire&tly over top o8 t-e F)( &ompletely around t-e&ir&um8eren&e o8 t-e pipe 8or a lengt- o8 + in&-es past ea&- end o8 t-e&on&rete 8orm*

*!* )elo Grade to %bove Grade 1ransition1-e belo ground to above ground transition piping ill be &oated it-eit-er F)( or a to part epoy* 1-e &oating ill be prote&ted it- a1ape&oat 1#R Riser a&@et* 1-e Riser a&@et ill be positioned so 0in&-es o8 t-e a&@et is belo grade and t-e remainder is above grade* 1-eRiser a&@et ill be installed per t-e manu8a&turerLs installation instru&tionsand be -eld in pla&e it- stainless steel banding*

%n alternate transition &oating is to use 1renton 2 4a 1ape it-primer applied over t-e pipeline &orrosion &oating 8rom +J above gradeto =J belo grade*

*!*2 %bove Grade Pipe Supports1-e above ground pipe supports ill be epoy &-o&@s it- 3ibalonbonded to it* Pipe straps ill -ave 3ibalon bonded to t-e sur8a&e 8a&ingt-e pipe*

1-e piping at all above ground pipe supports it- operatingtemperatures up to 200oF ill be prote&ted by applying Denso Protal7200 to part epoy A"0 mils and a top&oat o8 Carboline Carbot-ane$"5G A2$ mils around t-e &ir&um8eren&e o8 t-e pipe* 1-e Denso



Protal epoy &oating ill be applied per CPG Procedure 0,.,,1.,-and ill etend a minimum o8 + in&-es beyond t-e edge o8 t-e supportsur8a&e* 1-e Denso Protal epoy ill be brus- blasted be8ore t-eappli&ation o8 t-e Carboline Carbot-ane top&oat per CPG Procedure0,.,,1.,2*

1-e piping at all above ground pipe supports s-all be prote&ted per CPG Pro&edure 70*00*0"2* *

1 )$#'ER5SEP"R"'ORS6 4E"'ERS "!D #$%&$D 4"!D#$!GFilterseparators s-all be lo&ated at t-e inlet o8 all meter stations it- main gas pipinglarger t-an siin&- diameter t-at deliver gas into a CPG pipeline unless deemedunne&essary a8ter a oint revie by t-e CPG design and operation engineers* Re8er to t-espe&i8i& inter&onne&t agreement beteen CPG and Customer 8or details*

1.1 )$#'ER SEP"R"'OR

2** General

'ne or more 8ilterseparators s-all be installed, and s-all -ave anaggregate design &apa&ity e<ual to or greater t-an t-e maimum station8lo rate* Filter separators s-all be designed 8or operation over t-erange o8 pressures, temperatures and 8lo rates re<uired*

Filterseparator vessels s-all be designed, 8abri&ated, inspe&ted and testedin a&&ordan&e it- Se&tion 3... o8 t-e %SM( )oiler and Pressure 3esselCode, IPressure 3esselsJ Division and s-all be &ode stamped*5oever, a8ter installation, t-e separator ill be operated as a pipeline&omponent not as an %SM( Se&tion 3... pressure vessel*

• (a&- 8ilterseparator s-all be designed Aat a minimum at 0!o8 t-e M%'P o8 t-e atta&-ed piping*

• (a&- 8ilterseparator s-all be installed it- an inlet and outlet

valve to allo t-e vessel to be isolated 8rom t-e station piping8or maintenan&e and inspe&tion*

• .8 only a single 8ilterseparator is installed, a manual bypass

s-all be provided* 1-e bypass piping s-all be &on8igured topre&lude t-e a&&umulation o8 li<uids or pipeline debrisupstream o8 t-e bypass valve*

• .8 a 8ilterseparator is not installed initially, provisions Aspa&e ill bemade 8or t-e installation o8 t-e 8ilterseparator in t-e 8uture*

2**2 Con8iguration

Filterseparators s-all be o8 -ori?ontal &on8iguration it- an upstream8ilter se&tion separated it- a bul@-ead 8rom a donstream separator or mist etra&tor se&tion* (a&- se&tion s-all &onne&t to a separate li<uid&olle&tion sump*

• 1-e 8ilter se&tion s-all &ontain multiple tubular 8ibrous 8ilterelements arranged 8or parallel gas 8lo* 1-e 8ilter elements



s-all be arranged 8or &onvenient repla&ement t-roug- a <ui&@opening &losure lo&ated on t-e end o8 t-e vessel* 1-e &losures-all be t-e same diameter as t-e vessel to allo 8or ease o88ilter repla&ement unless ot-erise approved by t-e CPGengineer*

•1-e separator se&tion s-all employ -ig-e88i&ien&y vane typeseparator elements or ot-er suitable mist etra&tor elements toremove li<uid droplets*

• .nspe&tion openings s-all be provided as re<uired by t-e %SM(

Code and as ne&essary to inspe&t vessel internals* )lind 8langed&onne&tions s-all be provided 8or &lean out o8 t-e sump se&tions*

2**$ Per8orman&e

'ver t-e range o8 spe&i8ied operating &onditions, 8ilterseparators s-allbe &apable o8 removing solid parti&les and entrained li<uid droplets 8romt-e gas stream it- t-e 8olloing e88i&ien&y:

Parti&les#droplets $*0 mi&rons and larger: 00 removal

Parti&les#droplets U0*! mi&rons and Y$ mi&rons >> removal

.8 operational eperien&e di&tates more stringent separationper8orman&e is ne&essary, CPGLs Design (ngineering ill determinet-e site spe&i8i& re<uirements*

1-e pressure drop t-roug- t-e 8ilterseparator s-all not e&eed ! psi int-e &lean &ondition over t-e spe&i8ied range o8 operating &onditions*

2**" Controls and .nstrumentation

Filterseparators s-all be e<uipped it- &ontrols and instrumentationappropriate to t-e re<uirements o8 t-e spe&i8i& meter station and asoutlined belo*

• (a&- 8ilterseparator s-all be provided it- a sa8ety#t-ermal

relie8 valve, a pressure indi&ating gauge and a di88erentialpressure transmitter to monitor t-e pressure drop a&ross t-e8ilter se&tion* 1-e di88erential pressure transmitter output is tobe &onne&ted to t-e status input o8 t-e station 8lo &omputer toprovide remote alarm &apability*

• %s a minimum, ea&- li<uid sump se&tion s-all be e<uipped it-

a li<uid level sig-t gauge and a manual li<uid drain valve* (a&-sump s-all in&lude a blind 8langed &onne&tion suitable 8or&leaning out t-e sump*

• %t meter stations delivering gas into CPG pipelines, a -ig-level

s-utdon devi&e s-all be provided to automati&ally s-ut o88 8lot-roug- t-e meter station in t-e event o8 -ig- li<uid level in t-eseparator sump se&tion*

• .8 t-e station is s-ut in routinely due to -ig- li<uid level s-uto88,



&onsideration s-all be given to installing a tan@ and automatingt-e 8ilter separator dump system*

• Conne&tions s-all be provided to allo li<uid level &ontrol*

• % pressure redu&ing no??le or ori8i&e s-all be installed in any

manual or automati& drain line* 1-e pressure redu&ing no??le

or ori8i&e s-all be installed at t-e inlet o8 t-e tan@* 1-e designs-all prevent overpressure o8 t-e tan@ by &onsidering t-e vent&apa&ity and gas 8lo t-ru t-e ori8i&e*

• 4-ere it is anti&ipated t-at signi8i&ant <uantities o8 li<uids ill

be &olle&ted, li<uid level &ontrols and li<uid dump valves s-allbe provided on ea&- sump se&tion to automati&ally dump&olle&ted li<uid to a li<uid storage#disposal system* See Se&tion2*", I4ater and 5ydro&arbon DrainsJ* % -ig- li<uid levelsit&- s-all be installed on t-e li<uid separator sump and s-allbe &onne&ted to t-e status input o8 t-e station 8lo &omputer toprovide remote alarm &apability*

• Sumps, dump &ontrol and piping t-at may &ontain ater must

be prote&ted 8rom 8ree?ing by en&losing t-e sump and piping inan insulated -eated en&losure or -eat tra&ing At-e piping andsump it- removable insulation*

1. #$%&$D #EE# S4&'O))

1-is is a devi&e t-at s-uts o88 gas 8lo -en li<uid level e&eeds t-e &apa&ity o8t-e vessel* 1-ese are used at stations delivering gas into CPG t-at -ave mainpiping o8 siin&- diameter and less* Draings ill be provided by CPG based onea&- appli&ation*

1.( PROCESS G"S 4E"'$!G

Gas -eating s-all be provided -ere re<uired by ambient &onditions, gas <uality,pressure redu&tions or ot-er 8a&tors* 5eating o8 t-e gas stream may bea&&omplis-ed by indire&t 8ired -eaters or -eat e&-angers* 6o&al -eating o8regulators and &ontrol valves it- &atalyti& -eaters may also be used -ereappropriate*

2*$* .ndire&t Fired 5eaters

5eaters s-all be indire&t, gas 8ired, ater bat- -eaters &on8orming tot-e latest CPG Gas 5eater Spe&i8i&ation and %P. Spe&i8i&ation 2Indirect/Type Oil Field -eaters”. 1-ese spe&i8i&ations ill be providedby t-e CPG engineer upon appli&ation*

• 5eaters s-all be situated su&- t-at t-e -eater &oil and burner &an be pulled 8or inspe&tion*

• 1-e -eaters s-all be designed to maintain t-e re<uired gas

outlet temperature under t-e most severe spe&i8ied &onditionso8 gas 8lo rate and gas inlet and outlet pressure andtemperature*

• 5eaters and lo&ation s-all &on8orm to %G% K600*



• 5eaters s-all be pur&-ased as &omplete units* Sele&tion o8 t-e

&ontrol system s-all be evaluated 8or ea&- proe&t*

2*$*2 Catalyti& 5eaters

6o&al -eating o8 pressure &ontrol valves, instrument supply systems andpilots to prevent -ydrate 8ormation may be done it- gas 8ueled&atalyti& -eaters, -ere t-e si?e o8 t-e meter station, or t-e li@ely8re<uen&y o8 t-e problem does not usti8y t-e installation o8 a -eater to-eat t-e entire gas stream*

• Catalyti& -eaters it- ele&tri& start s-all be e<uipped it-t-ermostati& &ontrol and sa8ety s-utdon*

• Catalyti& -eaters and all a&&essory devi&es s-all be &erti8ied 8or t-e -a?ardous area &lassi8i&ation o8 t-e area in -i&- t-ey areto be installed*

• Design o8 &atalyti& -eater installations s-all be in stri&t

a&&ordan&e it- t-e manu8a&turers instru&tions*

1.+ "'ER "!D 43DROC"RBO! DR"$!S

Provision s-all be made at all meter stations 8or &-e&@ing t-e presen&e o8 li<uids inpiping, vessels or e<uipment* .n t-e event t-at li<uid a&&umulations are anti&ipatedin t-e design p-ase, or i8 li<uids are dis&overed to be a &ontinuing problem duringoperations, t-en systems 8or t-e drainage, &olle&tion and disposal o8 su&- li<uidss-all be provided*

2*"* Drain Conne&tions

Drain &onne&tions s-all be provided on ori8i&e 8ittings, on all -eadersHand at ot-er lo points in piping t-at are li@ely to a&&umulate li<uids*

• Drains at ori8i&e 8ittings s-all be on t-e bottom o8 t-e 8itting, at

t-e upstream tap* .8 t-e ori8i&e 8itting drain is &onne&ted to adrain &olle&tion system, t-en t-e drain valve s-all be &onne&tedto a lo&al drip bottle and a valved outlet on t-e drip bottle s-allbe &onne&ted to t-e drain &olle&tion piping*

• Drains 8rom buried piping s-all normally be via a sip-on drain

installed in t-e top o8 t-e pipe and etending to near t-e bottomo8 t-e pipe, or a drain piped to t-e bottom o8 t-e pipe, andetended above ground* % eld end ball valve s-all be

installed as t-e primary valve, 8olloed by a V in&- drain outletvalve &onne&ted to t-e drain &olle&tion system, or i8 no drain&olle&tion system is installed, t-en a s-ort lengt- o8 stainlesssteel tubing s-all be installed on t-e valve outlet and bent =0Oto point donard*

• Drains 8rom buried piping s-all not be smaller t-an in&-

nominal si?e, s-all -ave all elded oints t-roug- t-e primaryvalve, and s-all be prote&ted 8rom me&-ani&al damage eit-er by lo&ation or it- guard posts*



2*"*2 Drain Colle&tion Systems

Drain &olle&tion systems s-all be installed -ere usti8ied by t-e amounto8 li<uid anti&ipated to be drained 8rom t-e various piping ande<uipment drain points*

• Drain &olle&tion piping s-all normally be o8 in&- nominal si?epipe routed 8rom t-e various piping and e<uipment drain pointsto a li<uid storage tan@* 6arger pipe si?es may be re<uired 8or-ig- volume dumps su&- as 8rom large or multiple 8ilterseparators*

• %t ea&- drain point, a &-e&@ valve s-all be installed beteen

t-e drain valve and t-e drain &olle&tion piping* Forged steelsing &-e&@ valves are pre8erred 8or in&- nominal si?e andsmaller* C-e&@ valves 2 in&- nominal si?e and larger s-all be8langed end, sing &-e&@ valves it- bolted bonnets*

• 1-e design pressure o8 t-e drain &olle&tion piping s-all be e<ual

to t-at o8 t-e &onne&ted pro&ess piping or e<uipment* Separatedrain &olle&tion systems s-all be provided 8or pro&ess pipingsystems it- di88erent design pressures* 5oever, drain&olle&tion systems it- di88erent design pressures maydis&-arge to t-e same atmosp-eri& storage tan@ as long asea&- line prote&ts t-e tan@ 8rom overpressure and t-e tan@ vent&an -andle all o8 t-e drain lines simultaneously it-out adis&-arge 8rom one line &ausing overpressure in anot-er*

2*"*$ 6i<uid Storage

Colle&ted li<uids must be stored until t-ey &an be tru&@ed aay 8ordisposal* 1-e si?e o8 t-e storage tan@ ill be determined by t-e

<uantity o8 li<uid &olle&ted over time, and t-e 8re<uen&y t-at it &an bee88i&iently -auled aay 8or disposal* Storage tan@s s-all be atmosp-eri&and, depending on si?e, may be &onstru&ted o8 pipe and 8ittings or maybe &onventional storage tan@s*

• %ll tan@s s-all be installed above grade and s-all be it-in tan@

di@es or on &urbed 8oundations su88i&ient to &ontain t-e tan@volume* A.8 multiple tan@s are lo&ated it-in a single di@ed areat-en t-e di@e &apa&ity s-all be determined in a&&ordan&e it-FP% re<uirements*

• Conventional steel storage tan@s s-all be elded tan@s

&on8orming to t-e re<uirements o8 %P. Spe&i8i&ation 2F,

ISpe&i8i&ation 8or S-op 4elded 1an@s 8or Storage o8 Produ&tion6i<uidsJ* A1an@s smaller t-an >0 barrels s-all &on8orm to %P.2F to t-e etent appli&able*

• 6i<uid storage tan@s s-all be vented to atmosp-ere and allvents s-all -ave 8lame arrestors*

• %P. 2F tan@s s-all -ave normal and emergen&y venting

&apa&ities as re<uired by t-at spe&i8i&ation* Restri&tion ori8i&ess-all be installed at automati& li<uid dump valves to ensure t-at



tan@ venting &apa&ities are not e&eeded in t-e event t-e dumpvalve 8ails open*

• %ll li<uid storage tan@s s-all be e<uipped it- level gaugeglasses or level indi&ators*

• 4-ere li<uid storage tan@s are lo&ated at delivery lo&ations 8rom

t-e CPG system, -ig- li<uid level sit&-es s-all be installedit- outputs &onne&ted to t-e appropriate status inputs o8 t-estation 8lo &omputer to provide remote alarm &apability*

• 1an@ inlet lines 8rom drain &olle&tion systems s-all be piped toenter t-e top o8 t-e storage tan@, above t-e maimum li<uid level*

• % tan@ tru&@ loading area grounding station s-all be installed at

ea&- lo&ation -ere a tan@ drain -ose is to be &onne&ted to atru&@ loading point* See CPG standard draings*

• .n addition, to arning signs it- t-e 8olloing messages s-allbe installed:

A ID%G(RZ' SM'.G or 'P( F6%M(SJ and

A2 IC%91.' B C'(C1 GR'9D.G C%)6( 1'FR%M( 'F 1R9C )(F'R( %11%C5.G 5'S(*D.SC'(C1 C%)6( %F1(R 5'S( .S 9C'9P6(DJ*

1( "PPE!D$7 " 8 CPG S'"!D"RD DR"$!G #$S'Consult CPG Codes E Standards Se&tion 8or t-e most re&ent draing list*

1+ "PPE!D$7 B 5 M"'ER$"# SPEC$)$C"'$O!SFor spe&i8i& material re<uirements, please re8er to t-e latest revision o8 CPG DS"00+(le&troni& Measurement and Gas C-romatograp- Spe&i8i&ations*

1* "PPE!D$7 C 5 "PPROED M"'ER$"# #$S'Consult CPG Supply C-ain Se&tion 8or t-e most re&ent %pproved Material 6ist A%M6*

1- "PPE!D$7 D 5 Meter 'esting and $nspection

• 'P Master Mi& S-eet S ta n d ard D o & u m e n ts [% p p e n d i D M e ter .nsp a ndR e p or t [ ' P M a s ter M i& S - e et An e * ls

• 5.G5 PR(SS9R( 'R.F.C( P6%1( S(%6 6(% 1(S1* S ta n d ard Do & u m e n ts [% p p e n d i

D M e t er .n s p a n d Re p or t [5 . G 5 P R ( S S 9 R ( ' R.F. C ( P 6 % 1 ( S ( % 6 6 (% 1 (S 1 *d o &

• CPG 9ltrasoni& Meter .nspe&tion Report S ta n d a r d D o & u m e n ts [% p p e n d i D M e t er .n s pa n d R e p or t [ C P G 9 ltra s o n i& M e ter . n s p e & t ion Re p ort* l s

http://smb//SWNCHAFS01/SHARED/ENGINEER/DESIGN/gulf%20standard/Standard%20Documents/Appendix%20D%20Meter%20Insp%20and%20Report/OP%20Master%20Mic%20Sheet%20(new).xls



http://smb//SWNCHAFS01/SHARED/ENGINEER/DESIGN/gulf%20standard/Standard%20Documents/Appendix%20D%20Meter%20Insp%20and%20Report/HIGH%20PRESSURE%20ORIFICE%20PLATE%20SEAL%20LEAK%20TEST.doc



http://smb//SWNCHAFS01/SHARED/ENGINEER/DESIGN/gulf%20standard/Standard%20Documents/Appendix%20D%20Meter%20Insp%20and%20Report/CGT%20Ultrasonic%20Meter%20Inspection%20Report.xls














10 "PPE!D$7 E 1 8 Restriction Plate Si9ing 5 Rotary eters



1/ "PPE!D$7 E 8 Restriction Plate Si9ing 5 'ur;ine Meters

Sensus1urbine

Meter 1ype

Pipe Si?eAin

'ri8i&e

Dia*Ain

'ri8i&e

Plate 'DAin

'ri8i&e Plate

1-i&@nessAin

Florate 20

Capa&ity o8 Meter A0*+ S*G* Gas

1= " *$! +*7= 0*2! 2+00

127 " *++ +*7= 0*=7 $2"00

1$0 + *7" =*++ 0*=7 $+000

1$! + *== =*++ 0*2! "2000

1!7 + 2*" =*++ 0*2! +="00

1+0 = 2*"7 0*> 0*$2 72000

1>0 = $*02 0*> 0*$2 0=000

1"0 2 $*77 +*0$ 0*$7! +=000

12$0 2 "*=$ +*0$ 0*$7! 27+000

Restri&tion plates ill result in a !0 permanent redu&tion in pressure a&ross t-e

plate at soni& 8lo 20 rated meter &apa&ity listed



12 "PPE!D$7 ) 5 Corrosion Control Procedures

Procedure 'itle

70*00*02+ (ternal Coating 9nderground Fa&ilities B e Constru&tion or Maintenan&e %ppli&ation

70*00*02> (ternal Coating%bove Ground Fa&ilities e Constru&tion E SystemRe-abilitation Coating Maintenan&e Painting B %ppendi % B CoatingSele&tion Guide

70*00*0$2 (ternal Coating B 9nderground Fa&ilities B 'ver BCoatings and 'verraps8or Prote&ting Coated Pipe

70*00*0$+ %pplying 1renton .nner&oat and Guardrap

70*00*0$7 ard%pplied (ternal Poer&rete Coating on F)( Coated Pipe

70*00*0$= %pplying Cold%pplied 4a 1ape

70*00*0"0 Standard Paint Colors

70*002*0" (le&tri&al .solation o8 piping Systems and Components B MinimumRe<uirements

70*00*0" Filling and 'ver 4rapping Flanges

70*00*0"2 Corrosion Prote&tion 9nder (n&ir&lement 1ype Rein8or&ing Sleeves



, "PPE!D$7 G 8 COR$O#$S ME'ERS1-is se&tion des&ribes t-e re<uirements 8or Coriolis measurement o8 natural gas* Coriolismeter installation s-all be based upon t-e latest edition o8 %G% Report o* , IMeasuremento8 Gas by Coriolis MetersJ* CPG Design Standard DS8+,11 s>ould also ;e referenced.Coriolis meters s-all be used on gas 8lo only* Care s-ould be ta@en to pre&lude to p-ase8lo a&ross Coriolis measurement intended 8or gas servi&e* Coriolis meters &an be used 8orli<uid 8lo but CPG is primarily &on&erned it- gas 8lo -i&- t-is do&ument ill re8eren&e*

,.1 Si9ing Criteria

• 1-e number and si?e o8 meter runs s-all be dependent on epe&ted 8lo

ranges and#or impa&t o8 outage duration limitations* Single run Coriolis metersstations are a&&eptable i8 one meter run &an -andle all anti&ipated station8lorates it-in t-e manu8a&turers &apa&ity parameters* Single run Coriolismeter stations s-ould in&lude a lo&@able bypass valve to allo 8lo to t-e&ustomer -ile a /ero Flo C-e&@ is done on t-e Coriolis meter* 1-e bypasss-all be designed to meet t-e intent o8 Se&tion 2*2*!*

• 1-e Signal Pro&essing 9nit ASP9 provides to 8re<uen&y outputs to t-e R19

Aone 8or CPG and one 8or t-e &ustomer in &orre&ted pound mass* 1-e R19&al&ulates gas volume in standard &ubi& 8eet o8 gas per -our* 3endors s-ouldbe &onsulted to si?e a meter appropriate 8or ea&- appli&ation*

,. Coriolis Meter Runs $nstallation

• Full port ball valves s-all be used 8or meter run blo&@ valves* .nsulation 8lange@its s-all be installed on t-e meter side o8 t-e meter run blo&@ valves*

Run se<uen&ing valves s-all be butter8ly valves installed donstream o8 t-eCoriolis meters normal 8lo dire&tion* 9sing t-e outlet meter run blo&@valve 8or run se<uen&ing is not re&ommended*

• Coriolis meters runs may be s@id mounted to a88ord ease o8 installation*5oever, only t-e Coriolis meters s-all be sent to <uali8ied &alibration 8a&ilities*

• Coriolis meters are in-erently bidire&tional but pressure taps, &-romatograp-

probes, temperature t-ermoells and test t-ermoells s-all be installedupstream o8 t-e Coriolis meter in t-e normal 8lo dire&tion -i&- is indi&ated byt-e 8lo arro on t-e meter body*

• %t Columbia Gul8 1ransmission and Columbia Gas 1ransmission stations, %

Rosemount $0! stati& pressure transmitter be installed upstream o8 t-e&-romatograp- probe and temperature t-ermoell, test t-ermoell and t-eCoriolis meter in t-e normal 8lo dire&tion* % pressure transmitter s-all beinstalled on ea&- meter run in multirun Coriolis meters stations* Asee CPG

(le&troni& Measurement and Gas C-romatograp- Spe&i8i&ations• %t Columbia Gul8 1ransmission and Columbia Gas 1ransmission stations,

Rosemount $"" temperature transmitters and test t-ermoells s-all beinstalled on ea&- meter run on multirun Coriolis meters stations upstream o8t-e Coriolis meter in t-e normal 8lo dire&tion* Protrusion o8 t-ese t-ermoellss-ould be limited to #$ o8 diameter o8 pipe, but no greater t-an =J* Asee CPG(le&troni& Measurement and Gas C-romatograp- Spe&i8i&ations



• %n uninterruptible sour&e o8 ele&tri& poer Atypi&ally 2" vd& at att s-all

be provided 8or energi?ing t-e Coriolis meters* %dditional loop poer 8ort-e SP9, R19#FC and -ost &ommuni&ations is re<uired* )ot- poer andsignal must be provided to @eep t-e station poered up 8or a minimum o8 "= -ours*

•Coriolis meters s-all be installed su&- t-at t-e inlet and outlet 8lange&onne&tions s-ould be "2J or less 8rom t-e ground to t-e &enterline o8 t-emeter run* 1-e Coriolis meter s-all be oriented su&- t-at t-e tubes arep-ysi&ally above t-e meter run* Drain &onne&tions it- pipe plugs s-all beprovided on t-e bottom o8 t-e meter run piping upstream and donstreamo8 t-e Coriolis meter*

• Four A" 8eet o8 &learan&e on eit-er side o8 Coriolis meter is re<uired 8or

a&&ess to t-e meter* ib &rane is re<uired to li8t any Coriolis meterseig-ting more t-an 00 pounds*

• Coriolis meters do not re<uire 8lo &onditioning plates or straig-t run o8 pipe

upstream o8 t-e Coriolis meter* 5oever, a straig-t run o8 pipe upstream o8t-e Coriolis meter Ain t-e normal 8lo dire&tion ill be provided to mount a

pressure transmitter, &-romatograp- probe, temperature transmitter andtemperature test t-ermoell*

• 5eader and riser &on8iguration s-all be designed to minimi?e 8lopro8iledistortions*

• Coriolis meter run pipe may be 8abri&ated it- (R4 or seamless line pipe,

but t-e 8abri&ator must inspe&t t-e pipe 8or no greater t-an outo8roundness and internal diameter deviation no greater t-an

• % @noledgeable person s-all inspe&t t-e Coriolis meter 8or signs o8

damage or improper assembly su&- as iring, &onne&tions, transdu&ers,&ir&uit boards, et&* % @noledgeable person s-all inspe&t t-e Coriolis meter to ma@e sure t-ere is no 8ree li<uids, dirt, debris, oil or &orrosion produ&ts in

t-e meter openings prior to installation*• 1-e Coriolis meter must be installed in meter run piping t-at is su88i&iently

supported su&- t-at t-e eig-t o8 t-e meter, piping and blo&@ valves do notput t-e meter in a bind*

• 1-e Coriolis meter tubes s-all be p-ysi&ally lo&ated above t-e &enterline o8

t-e meter run piping to allo any li<uids to drain out o8 t-e meter tube*Drain &onne&tions it- pipe plugs s-all be provided on t-e bottom o8 t-emeter run piping upstream and donstream o8 t-e Coriolis meter*

,.( Cali;ration 'esting

• Coriolis meters s-all be ater &alibrated at t-e manu8a&turers be8ore t-e unit iss-ipped*

• 1-e Coriolis meter s-all be a minimum o8 plus or minus 0* a&&urate a8ter

&alibration* 1-e manu8a&turer s-all also provide &alibration &erti8i&ationdo&uments at 00, 0, !0 and 00 o8 t-e meter 8lo &apa&ity Ain t-atorder*

• .ndividual Coriolis meter 8lo &oe88i&ient and serial number s-all be noted on abadge a88ied to t-e meter body*



• Calibration diagnosti& in8ormation s-all in&lude initial Coriolis meter test results

8or le8t pi&@up, rig-t pi&@up, drive gain, ?ero o88set at 00, 0, !0 and 008lorates* 1-is do&umentation s-all be provided it- t-e meters.