manitoba engineering standard specification...

ENGINEERING STANDARD SPECIFICATIONManitoba

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MECHANICALPIPINGGASES – PROPANE GAS – 60 PSIG

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REVISIONS

Rev Description Rev’nby

AppSud

AppPC

AppThom

AppVB

AppLH

AppClyd

AppAct

Issue DateYYYY/MM/DD

1Specification updated andformat and number revised.Previous number 3503-04.07.611

BM2011/11/01

BM2011/12/01

N/A N/A N/A N/A N/A N/A 2012/04/26

2

Approved for use inThompson – Piping systemApproval Requirements forMB updated

BM2011/11/01

BM2011/12/01

N/A GS2012/10/01

N/A N/A N/A N/A 2012/10/02

3 Spec approved for MBOperations N/A N/A N/A HM

30 SEP 16N/A N/A N/A N/A 30 SEP 16

Sud = Sudbury, Ontario, PC = Port Colborne, Thom = Thompson, Manitoba, VB = Voisey’s Bay, LH = Long Harbour, Act = Acton, England,Clyd = Clydach, Wales, N/A = Not Applicable


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1.0 PURPOSE

This specification describes the minimum requirements for propane gas piping systems inindustrial applications for up to 60 psi service downstream of the utility distributor’s meter setassembly, and upstream of a gas appliance isolating valve. Buried natural gas & propanepipelines shall also comply with Vale Std. Specification TH-SPEC-11009, “Buried Pipelines –Natural and Propane Gas”.

2.0 APPLICATION

Engineering design and specifications only approved for use with Vale Canada Limited,Thompson Operations or its successor or assignee. Any use a third party makes of thisdocument or drawing, or any reliance on or decisions to be made based on it, beyond its usefor Vale Canada Limited purposes are the responsibility of such third parties. Vale CanadaLimited accepts no responsibility for damages, if any, suffered by any third party as a resultof decisions made or actions based on this document or drawing beyond those specifiedherein.

This specification, applies at any Vale locations indicated with approval on the cover page,with the following exceptions:

2.1 EXCEPTIONS

None.

3.0 REFERENCE DOCUMENTATION

The following documents were used in the development of this document or haveinstructions and procedures applicable to it. They shall be used in their most recent revision.

TH-SPEC-11009 Buried Pipelines – Natural and Propane GasTH-SPEC-35001 Identification and ClassificationTH-SPEC-35002 Piping – General RequirementsTH-SPEC-35003 Welding Process RequirementsTH-SPEC-35048 Requirements for Pneumatic Testing of Piping SystemsCSA B51 Boiler, Pressure Vessel and Pressure Piping CodeCSA B137.4 Polyethylene Piping Systems for Gas ServicesCSA B149.1 Natural Gas and Propane Installation Code

CSA B149.3Code for the Field Approval of Fuel-Related Components on Appliances andEquipment

CSA Z180.1 Compressed Breathing Air and Systems


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CSA Z662 Oil and Gas Pipeline Systems

ASTM A53Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated,Welded and Seamless

ASTM A105 Standard Specification for Carbon Steel Forgings for Piping Applications

ASTM A106Standard Specification for Seamless Carbon Steel Pipe for High TemperatureService

ASTM A139 Standard Specification for Arc Welded Steel Pipe

ASTM A179Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes

ASTM A193Standard Specification for Alloy Steel and Stainless Steel Bolting for HTemperature Service or High Pressure Service

ASTM A194Standard Specification for Carbon Steel and Alloy Steel Nuts for Bolts for HighPressure or High Temperature Service or Both

ASTM A197 Standard Specification for Cupola Malleable Iron

ASTM A234Standard Specification for Piping Fittings of Wrought Carbon Steel and AlloySteel for Moderate and High Temperature Service

ASTM A307 Specification for Carbon Steel Bolts and Studs, 60,000 PSI Tensile StrengthASTM A333 Seamless and Welded Steel pipe for Low Temperature ServiceASTM A420WPL6

Standard Specification for Piping Fittings of Wrought Carbon Steel and AlloySteel for Low Temperature Service

ASTM A536 Standard Specification for Ductile Iron CastingsASTM A563 Specification for Carbon and Alloy Steel NutsASTM B61 Standard Specification for Steam or Valve Bronze CastingsASTM B62 Standard Specification for Composition Bronze or Ounce Metal CastingsASTM D2000 Standard Classification System for Rubber Products in Automotive ApplicationASTM F37 Standard Test Methods for Sealability of Gasket MaterialsASTM F681 Standard Practice for use of Branch Connections

ASTM F1973

Standard Specification for Factory Assembled Anodeless Risers and TransitionFittings in Polyethylene (PE) and Polyamide 11(PA11) and Polyamide 12(PA12) Fuel Gas Distribution Systems.

ASTM F2619 Standard Specification for High-Density Polyethylene (PE) Line PipeASME B1.1 Unified Inch Screw ThreadsASME B1.20.1 Pipe Threads, General Purpose (Inch)ASME B16.1 Gray Iron Pipe Flanges and Flange FittingsASME B16.3 Malleable Iron Threaded FittingsASME B16.5 Pipe Flanges and Flanged FittingsASME B16.9 Factory-Made Wrought Buttwelding FittingsASME B16.11 Forged Fittings Socket Welded and ThreadedASME B16.21 Nonmetallic Flat Gaskets for Pipe FlangesASME B16.25 Butt Welding EndsASME B16.34 Valves – Flanged, Threaded and Welding EndsASME B16.39 Malleable Iron Threaded Pipe Unions


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ASME B18.2.1Square, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, HexFlange, Lobed Head, and Lag Screws (Inch Series)

ASME B18.2.2Nuts for General Applications: Machine Screw Nuts, Hex, Square, Hex Flange,and Coupling Nuts (Inch Series)

ASME B31.1 Power PipingASME B31.3 Process Piping CodeASME B36.10 Welded and Seamless Wrought Steel PipeMSS SP-44 Steel Pipeline FlangesMSS SP-67 Butterfly ValvesMSS SP-83 Class 3000 Steel Pipe Unions, Socket Welding and ThreadedMSS SP-97 Integrally Reinforced Forged Branch Outlet Fitting

4.0 PIPING AND FITTINGS

Pressure Rating Rating 75 PSI @ Ambient temperature.

OperatingConditions

Up to 60 PSIG @ Ambient temperatures, indoors and outdoors.Piping shall be installed in accordance with CSA B149.1, “NaturalGas and Propane Installation Code” and this standard.

Design FabricationInstallation

In accordance with the ITSM (Inspection Technical ServicesManitoba) – Fuels Branch; CSA B149.1, “Natural Gas andPropane Installation Code”; ANSI/ASME B31.1, “Power Piping”;and Vale Engineering Standard Specifications TH-SPEC-35002,“Piping – General Requirements” and TH-SPEC-35003, “WeldingProcess Requirements”.

Note: This specification applies to piping systems where the linetemperature may fall below -20 deg.F, after adiabatic expansionor other process conditions. Gas flow through a control valve ororifice will expand, releasing energy and will cool the adjacentpiping.


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Approvals ONTARIO:Piping on Vale property does not require TSSA for pressurepiping, but does require approvals for TSSA under the FuelSafety division for natural gas systems operating at 60 PSIG andunder. All natural gas piping systems shall be treated inaccordance with ASME B31.3 and the requirements of TSSAeven though it is exempt from registration.

MANITOBA:Piping systems are subject to the approval of the Manitoba Officeof Fire Commissioner, Inspection and Technical ServicesSection, Steam and Pressure Plants Act.

Pipe, above ground 2" & Below - Schedule 80 carbon steel ASTM A53 or A106 Gr. B,ERW, plain ends.

2 1/2" through 12" - Schedule 40 carbon steel ASTM A53 orA106 Gr. B, ERW or seamless, beveled ends.

14" through 16" - 0.375" thick wall ASTM A53 Gr. A or B, DSAWor ASTM A106 Gr. A or Gr. B seamless, beveled ends.

Note: 1. ASTM A333, Grade 6 (cold temperature)piping shall be used outside or in unheatedbuildings for all pipe systems under 20” dia.and for a minimum 10 feet downstream ofpressure control valves and orifice pressurereducing devices.

2. Piping shall be supported in accordance withCSA B149.1, Table 5.8.3.

Fittings, aboveground

2" & Below – Class 3000 forged steel ASTM A105, socket weld toANSI B16.11.

2 1/2" & Above - Schedule 40 carbon steel ASTM A234 WPB,butt weld to ANSI/ASME B16.9.


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Mitred joints greater than 15 degrees not permitted unless notedon project drawings

Alternate for low pressure lines (14" W.G. or less) in accessibleplaces:

1 1/2" & Below – Class 150 malleable iron ASTM A197 or steel,screwed and banded pattern to ANSI/ASME B16.3. ScrewedConnections to be minimized especially where vibration may bean issue. Refer to project specific contract documents for wherethreaded piping is allowed, if in doubt, verify with Vale projectmanager, coordinator or designate for clarification.

Note: for cold temperature piping outdoors or in unheatedbuildings fittings 2” and larger shall be ASTM A420 WPL6

Buried PlasticPipelines

Restrict buried piping to minimum pipe size of 2" NPS. Threadedor flanged joints are not permitted on buried natural gas pipelines.

Preferred

2" through 6" - High density polyethylene SDR 11 ASTMF2619/F2619M Standard Specification for High-DensityPolyethylene (PE) Line Pipe in accordance with CSA B137.4"Polyethylene Piping Systems for Gas Services". Yellow plainends for butt heat fusion welding. Fusion of polyethylene jointsshall be done by personnel qualified by pipe manufacturer.Surrounding environment must be within manufacturer’s specifiedconditions for performing fusion of joints. All HDPE gas pipe is tobe installed with an insulated solid #12 AWG tracer wire taped topipe every 10 feet, and plastic yellow marking tape 24” abovepipe for full length of buried pipe. Pipe in trenches is to beinstalled in accordance with CSA Z662-latest “Oil and GasPipeline Systems”.

Note: Pipe bend radius in accordance with CSA B149.1.


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-OR-

2" through 12" - Schedule 40 carbon steel ASTM A106 Gr. B,seamless yellow jacketed, cross linked polyolefin pipe coating. .Cover buried carbon steel line joints with approved protectiveheat shrinkable coating sleeve or 1/2 lap Denso tape approvedfor Natural Gas Service, followed by 1/2 lap Polyken tape.Note: Thoroughly inspect yellow jacket for defects.

Fittings, buried service(preferred)2" through 6" - Butt fusion fittings for SDR-11 high densitypolyethylene pipe compatible with resin specified for pipes.

- OR -

2" through 12" - Schedule 40 carbon steel ASTM A53 Gr. B,seamless yellow jacketed. Cover buried carbon steel line jointswith approved protective coating sweat sleeve or 1/2 lap Densotape and 1/2 lap Polyken tape.Note: Thoroughly inspect yellow jacket for defects.

BranchConnections

Connections See Table 1.

Use forged carbon steel ASTM A105 Schedule 80 weldolets andsockolets.

Attachment to run pipe by full penetration welds.

For buried plastic pipelines use approved butt fusion fittings orpre-approved anodeless plastic/steel riser connection with bottomfusion connection and top flange connection, special order fromPerfection Corporation or approved equal. Anodeless risers areto meet the requirements of ASTM F1973 Standard Specification


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for Factory Assembled Anodeless Risers and Transition Fittingsin Polyethylene (PE) and Polyamide 11(PA11) and Polyamide 12(PA12) Fuel Gas Distribution Systems.

Tubing Tubing shall be seamless ASTM A179, wall thickness sized forgas service, minimum pressure 500 psig. Tubing shall be limitedto max. 5/8” O.D.

Tie-in to ExistingGas Piping

The existing pipe where the proposed tie-in is to be located is tobe assessed by Non-Destructive Evaluation (NDE) to determinethe condition of the pipe and its suitability to be welded prior toany tie-ins. NDE results are to be submitted to Vale Combustion,Project coordinator or his designate for review and approval toproceed with tie-in.

Hot Tap / LineStopping

Hot Tap / Line Stopping shall only occur as a last resort when it isnot feasible or is impractical to take the equipment or piping outof service.The contractor performing the hot tap / line stopping shall have inplace a Quality Assurance program approved by ITSM for hot tapline stopping.

The existing pipe where the proposed hot tap is to be located isto be assessed by Non-Destructive Evaluation (NDE) todetermine the condition of the pipe and its suitability to bewelded.

The hot tap / line stopping Contractor / equipment owner / projectcoordinator in conjunction with the Vale Combustion ServicesDepartment shall perform a Process Hazardous Review (PHR)prior to the first production weld. The PHR shall conform to thehot tap / line stopping quality manual registered with the ITSM. Allwelding shall conform to ASME Section IX and ITSM weldingrequirements.

All pressure boundary fittings used in the hot tap / line stoppingalteration shall be registered with the ITSM. The CanadianRegistration Number and or the Statutory Declaration of the fittingshall be provided to Vale Limited prior to the first production weld.


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Flanges 2" & Below - 150 lb. raised face, socket weld, forged carbon steelASTM A105, ANSI/ASME B16.5.

2 1/2" through 16" - 150 lb. raised face, slip-on or welding neck,forged carbon steel ASTM A105, ANSI/ASME B16.5.

Note: Use full face flange when mating with 125 lb. cast ironvalves.

Gaskets 1/16" thick ring type, non- asbestos material as follows, asapproved by Vale Combustion Services Department. Do not usenatural rubber.

Durabla Durlon 9000 (filled PTFE gasket material) for service upto 250 degree F, or approved equal.

– OR –

Anchor Klinger C4500 (carbon fibre, nitrile binder gasket material)for service up to 900 degrees F, or approved equal.

Thread Sealants Sealant is to be approved for natural gas service. MastersMetallic Compound (preferred) or Vale approved equal.

Flange Bolting Carbon steel bolts to ASTM A193 Gr. B-7, UNC threads, withheavy series hex nuts to ASTM A194 Gr. 7 with Class 2A fit onbolts and 2B fit on nuts. Dimensions to ANSI B1.1, B18.2.1 andANSI/ASME B18.2.2.

Unions 1 1/2" & below – Class 3000 ASTM A105 carbon steel union,socket weld ends to ANSI B16.11.



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1 1/2" & Below - Class 150 malleable iron ASTM A197,ANSI/ASME B16.39, bronze to iron ground seats, screwed endsto ANSI/ASME B1.20.1.

Note: Unions 2" and above are not permitted, unless pre-approved at appliance manifolds.

Ball Valves 1/2" & Above - Class 150 cast carbon steel ball valve ASTMA216 Gr. WCB. 316 stainless steel ball and stem, virgin Teflonseat and seals. Wrench-operated (complete with wrench),flanged to ANSI/ASME B16.5. Valves to be lockable.


1/2" through 1" – Cast carbon steel body ASTM A216 Gr. WCB.Steel hard chromium plated ball and stem, minimum pressurerating 1000 psig, Teflon seats and seals. Wrench-operated(completed with wrench), ends screwed to ANSI/ASME B1.20.1.Valves to be lockable.

Plug Valves 1/2" & Above - Class 150 cast carbon steel plug valve ASTMA216 Gr. WCB. Lubricated plug, wrench operated (complete withwrench), flanged to ANSI/ASME B16.5.Lubrication shall be approved for Natural Gas Service. Valves tobe lockable.

Globe Valves* 1 1/2" & Below - Class 150 bronze globe valve ASTM B62, unionbonnet, Teflon disc, screwed ends to ANSI/ASME B1.20.1.Valves to be lockable.

Check Valves 1 1/2" & Below - Class 600 cast carbon steel swing check valveASTM A216 Gr. WCB, 13% chrome disc and seats, screwedends to ANSI/ASME B1.20.1.

2" & Above - Class 150 cast carbon steel swing check valveASTM A216 Gr. WCB, 13% chrome disc and seats, flanged toANSI/ASME B16.5.


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-OR-

2" & Above - Class 150 carbon steel wafer check valve ASTMA216 Gr. WCB body, 316 stainless steel spring, Buna N O-ringseals.

InstrumentationIsolating Valves

1/2" Ball Valves - Cast carbon steel body ASTM A216 Gr. WCB.Steel hard chromium plated ball and stem, minimum pressurerating 1000 psig, Teflon seats and seals. wrench-operated(completed with wrench), screwed to ANSI/ASME B1.20.1.Valves to be lockable.

*Note:All valves to be CSA/Canadian Gas Association approved.All valves to be lockable.

Safety Relief Valves Selection by the Engineer. A safety relief valve is required afterevery pressure reducing valve in order to protect the appliancefrom over pressure in the event that the pressure reducing valvefails.

Pressure ReducingValves

Selection by the Engineer

Flexible Hoses Hoses Normal Operating Conditions – Flexible hose elementrated for minimum working pressure of 350 PSIG and CSA/CGAapproved. End connections to suit pipeline termination pointsand pressure rating.

Hot Metal Area - Flexible corrugated stainless steel hose withbraided wire sheath. Rated for minimum of 350 PSIG andCSA/CGA approved. End connections to suit pipelinetermination points and pressure rating.

Venting Route all vents to atmosphere. Vent terminations are to bedirected away from all building air inlet openings, in accordancewith CSA B149.1.


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Pipe Protection In accordance with the requirements of the ITSM.

Protect pipeline where subject to hazard or damage.

When the line is buried or in contact with soil, protect fromcorrosion by using protective coating, cathodic protection,isolation and/or any combination of methods approved by Vale.

When the line is above ground and exposed to physical damage,protect by distance or barricades.

When the line is exposed to corrosive atmosphere, use protectivecoatings.

The method of protection and location are indicated on drawings.Insulation Insulation is not required for natural gas pipelines.

Electrical Bonding All interior metal gas piping shall be bonded to ground inaccordance with the Local electrical Safety Code.

Welding Essential variables in accordance with Vale EngineeringSpecification TH-SPEC-35003.

VALE:


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2" & below, socket , Essential Var:WP-1

2 1/2" to 6",buttweld , Essential Var:WP-3

8" to 16" , Essential Var:WP-1

Alternative welding process shall be approved by Vale prior to start of work.

5.0 TESTING

Testing is to be performed by the installing contractor and field witnessed by ValeCombustion Services Department, Vale Project Coordinator, or designate in accordance withITSM and CSA B-149.1, Para. 5.22, Testing of Piping, Tubing, Hose & Fittings all requiredpaperwork are to be submitted to Vale Combustion prior to line activation by ValeCombustion. Obtain the standard Vale Limited pressure testing form and test number fromVale Combustion Services prior to setting up for test.

Bubble test joints with soap leak check – preliminary test at 25 psi, then at final testpressure.

Testing shall be documented, gradual pneumatic test using dry, oil free air or nitrogen at 90psi for 3 hours minimum, and witnessed by Vale Quality Assurance representative, or hisdesignate. Note: pressure safety valve required. If modifications to gas pipe have less than10 welded joints, NDE on welds may be accepted in lieu of pressure test by ValeCombustion if requested. This will be considered on a case by case basis only and is not tobecome common practice.Alternately, shop-fabricated pipe spool sections may be hydrostatically (bench) tested at 113psig. Liquid shall be swept dry afterward.

A field tie-in weld may be exempt from further testing after NDE visual & magnetic particleexamination and in-process leak check, with approval of the Engineer and TSSA Inspector.

6.0 WELD EXAMINATION & INSPECTION

By CWB Welding Supervisor (per CSA W47.1) familiar with ASME Section 5 andANSI/ASME B31.3 visual criteria or CGSB Level II inspector.Piping shall be 100% visually examined; acceptance criteria for welding shall be inaccordance with CSA Z662, clause 7.2.9, Standards of Acceptability – NondestructiveTesting.


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7.0 CLEANING

Piping systems are to be purged clear by installer following the direction of Vale CombustionServices Department. Purging for cleaning must have sufficient velocity to discharge weldingslag, dirt, pieces of welding rod, etc. Cleaning should be witnessed by the Vale Projectcoordinator or his designate to their satisfaction.

8.0 PURGING & COMMISSIONING

Purging and commissioning shall be done by the installing contractor in conjunction with theVale Combustion Services Department, in accordance with CSA B149.1, Para 5.23, “Purgingof Piping, Tubing Systems and Hose after Leak Test”.

9.0 PAINTING & PIPE IDENTIFICATION

Paint piping above ground according to the paint system specification shown on drawings.

Colour: Yellow, Federal Standard colour #13507 (stock code 98-70335) per Vale Std. TH-SPEC-35001, Piping Systems – Identification and Classification.

Identify the piping system according to the requirements indicated on drawings and Vale'sGeneral Requirements for Piping TH-SPEC-35002.


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10.0 TABLE 1

CARBON STEEL BRANCH CONNECTIONSInches

16 114 2 112 2 2 110 4 2 2 1

B 8 4 4 2 2 1R 6 4 4 4 2 2 1A 4 4 4 4 4 2 2 1N 3 4 4 4 4 4 2 2 1C 2.5 4 4 4 4 4 4 2 2 1H 2 4 4 4 4 4 4 4 2 2 1

1.5 4 4 4 4 4 4 4 4 2 2 11 4 4 4 4 4 4 4 4 4 2 2 1

3/4 3 3 3 3 3 3 3 3 3 2 2 2 11/2 3 3 3 3 3 3 3 3 3 2 2 2 2 1

Inches 16 14 12 10 8 6 4 3 2.5 2 1.5 1 3/4 1/2

HEADER1 = Equal Tee2 = Reducing Tee3 = Half Coupling (Socket weld)4 = Sockolet, Weldolet*

* Note: Weldolet fitting to match branch line pipe schedule.


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11.0 APPENDICES

Appendix A: Revision and Transition NotesAppendix B: Keywords


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Appendix A: Revision and Transition Notes

(Revisions are listed in reverse chronological order with most recent revision at the top.Revision notes describe: what was changed, why it was changed, and the plan to implementthe change, including whether changes are retroactive)

Revision 3Approved for Manitoba OperationsSection 3: Reference documentation added.Section 4: Added reference to TH-SPEC-35003.TSSA references removed and replaced with ITSM

Revision 2

Approved for use in Thompson. Piping system approval requirements updated for Manitoba.

Revision 1

Document format and number changed due to Vale Engineering Document Programchanges in 2011. Previous Standard number 3503-04.07.611 Rev 10. Specificationupdated.

Appendix B: Keywords

3503-04.07.611SPEC-35022

manitoba engineering standard specification...

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