FIG. A16

bolting Diafram

%

j

! :: .

i .i! .

‘j

/; :

.:

,. 1

i 1:: -i :

:. -e

PROPRIETARY lt4FORhtAlioNllsacauMENrwcLuoEs PROPINNIARY INFoRMAnoN o?OSNEFUL .aama OOMPANY AND WAY NOY SE USE0

iL4PpoBESOlHEflTHAH~TPORWNlOlilTWAEi#(pw puwm. sxam wnn wmrrmIRMWSW PROM 5% WHY C SNAU STEM NIWNEWART- QENE?w. ELEcmla COMPANY

FOR OENERAL ELEOlRlC CO. USE ONLYHIS l?i?AWiNo MAINTAMED ON INTERLEAF 62

INLESS OWERMSElPWPIEOONWIUONSbREINlNONES.

rol.ERmaEmlPl.DEa#w.s+-iFUECDuLB*-FfWllONS*-hImLNs+-

RWI cwu.No.PI 2A-AFI 7

WI Rsu

IEVi

REVfSIONS

DESCRIPTION

InformatIon.

yb!aJa!!Added Sh 31-34; added tightening datafor 60 KSI & 65 KISI.

Y I! CN No. 91-456plSM. 31- “65,000 PSI” was “60,000 PSI”Sht. 38 - *FT/LSS’ was “FILTERS”sht 34 - 85,000 PSI” was “60,000 PSI”;

uFULSS was “FILTERS-

AAWR DeCostelCN No. 92-74791Ackbd Sh 3546, added assemlbyprooedure for Navy spiral wound gaskets

*-1Ftevissd tables In paragraphs 1 .l (7.3.1and 7.32. Deleted tables for special60,000 and 65,000 I stress. RevisedFigures 1 and 6.Id=STQ I One PieceCasing. Revfsed sections 2.1,3.7,3.2,3.3,3.4,3.6,3.6,4.1.1.6,4.1.10,4.11.12,4.1.2.4,4.1.2.5,5.1,52and7.1. Retyped entire document onINTERLEAF. Consolidate specfrom 38pages to 23 pages. Prevfous otiglnalDermooDk3d.

ICN 0.93-10 61Sht. g. Added L Paragraph

DATE APPROVED

9wo7to6

91102%

91 to5t31

JM Keiler

FHH

FHH

91/06/l 9

92/06/19

93m6/24

93ilOl28

FHH

FHH

WHC

WHC

GENERAL ELECTRIC CO.

TIGHTENING FASTENERS

1)

;

1

2

:

4

f

b

t

PROPRIRARY INFORMATIONlIiFm~~0En6tlK ~00WPUnlVIDWTNOT96WaDFORPURR)~~I)(U(IHITWRWHKJI)IWldIwaI WPROY~RIwkIIIMU.~TURBI)(B~a-uN~rnCWPU(V

‘itle: Process Instruction for Tightening Fasteners Spec. PI 2A-AF17

OPERATOR’S INDEX GUIDE

. GENERAL

Based on the size of the fastener and the stress value required, different methods of tightening and ways ofmeasuring tightness must be ~lsed to de-e the required stress value on any particular fastener; use its drawingnumber and fastener identification in conjunction with chart in Se&on 1 .l.

!. LUBRICATION

I. TOOLS

C. METHODS4.1. He-aIing

4.1.1. Gas

4.1.2 Elecaic

i. RULES5.1. PreAssembly

5.2. Assembly

3. SEQUENTIAL TIGHTENING

7. TIGHTENING7.1. J.kgrecs

7.2 Stretch

7.3. Power

NOTE: 45,009 PSI stress exclusively will be used at hydrotest.

8. INSPECTION

9. GASKETED JOINTS

lO.PIPE FLANGE ASSEMBLY PROCEDURE - NAVY APPLICATIONS

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEFT FITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURES - ua MT. SIZE CAGE CODE

‘- OJ Babineau 78 01 II A 1 03502 1DIWZ. NO.

Pi 2A-AFI 7EssuB) SEESHEET SCALE NONE SHEET 2

FORM 091452SA

l

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS

S I G N A T U R E S -Im OAY SIZE OAQE CODE DWQ. NO.- CJBablneau 78 01 11 A 1 0 3 5 0 2 1 P12A-AF17tssum SEESHEET SCALE NONE SHEET 3

:OFtM 091-4525A A

w I n I rli?ew-f/ I il iADPROPRIETARY INFORMATION

4lsDoDmeNl- momlmm IIIXIII~IK~ 01, nm ONwnU Wcmc Wa A)(D IUY HOT BE VLlcD FOR pvAPoafi0 ~pP” niA7 FoR wlital R mapOlNAUYFUNNlllNW.EUCWTWlINWRlllNN~NNOUl?lNH*VYb~ nvwiN-ONWERKNlNcnllc Y ANY.

. GENERAL

This process instruction covers spcci% requirements for tightening fasteners. These requirements are to befollowed prior to test and shipping of turbine sets.

1.1. F?mwa&2

Fastener types that are covered under this instruction. Check drwg. for specified fasteners.

WYl’Ei.:Torque requirements are determined by material (symbol) identification - drawing numbersare reference typical. EXAMPLE, F4OOA torque reqnirement is “316”.

LUBRlGATlON

21. $ubrican$

Listed below is the Department’s approved lubricant.

2.1.1. Lubricant shall meet the quirements Of MIGVD-907D.

2.1.2. Any other lubricant is to be approved by Engineering.2.1.21. WeverSeez” anti-seize compound regular grade and nickel grade meets MEL-A-907D.

165A206CY-1 NEWR-SBBZ RBGuLAR to 1800°F165AZO6CY-2 NEVl%-SEE!ZNXCKELto24000F

2.2 B

2.2.1. Bostik~, 2910 South 18th Ave., Broadview, IL 60153, or equivalent,

NOTE: If lubricant becomes hard In the can it is NOT to be used or diluted.Operator must obtain new compound can.

. TOOLS

The following stan&nI approved tightening methods and tools are to be used. For safety reasons, non-standardwrenches or tools are NOT to be uxxL

3.1. Manual

3.1 .l . Fastena range sizes 3/8” to 13/4”.

3.1.2 Ref: Torquemeters with staudanl impact sockets lp’ - 3/4” - 1 l/2” or available industry tooling.

.3.2 pnsr%t

3.21. Fasteller rmge size6 In to 4”.

3.22 Refz Hytorc Pump Model “SST’ equipped with direct resding torque gauge. Standard impact socketsl”, 1 l/2”. 2 l/2” drives, or equivalent. If equipment is used alone, gages and wrench heads must becxlmated.

08% N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURESD- CJ Babfneau A

- SEESHEET SCALE NONE SHEEr 4‘ORM 091-452!5A

--.0

3.3. EKs3$

3.3.1. Fastener range sizes 2” to 6”.

3.3.2. Refz “Snap-W’ sledge boxoletsGas Ref. 165A368AB-IElectric Ref. 165A648AAor equivalent tooling for above

3.4. Misc. Tools

Degree Gage P-4098552-4628, or equivalent method of determiniag degrees

Ama S-7418X, or equivalent method of determining stretch.

3.6. Adapim

For slotted nuts lOlA611DX (lOlA611DR). or equivalent

3.7. Where a choice of tightening methods exists, the following is the preferred order of accuraq:

1. Stretch

E

Degrees ) o be verified by slretch for siizes 2” and greater. Torque ) erQ by stretch on the FIRST stud torqued for each

size 2” and greater (see Conformance Sheets).

3.6. Special depth micrometer

K-40985523038 Except 0” To 2”Range

3.9. v

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS. SIGNATURES

- CJBafAneau

msuEo SEE SHEET 1:OFIM 0974!52SA

Tam uP PAT SEE CAQE CtODE DWG. NO.

76 OI II A 03502 PI 2A-AF17 wSCALE NONE SHEFr 5

n0

I. METHODS

4.1. Heat

4.1.1. Gas4.1.1.1. For proper beating, a burner tip orifice diameter of 0.1065 to 0.113 inch (such as obtained with a

VICTGR No. 6 tip, or an OXWELD No. 40 tip) shoutd be used snd set for a neutral flame.4.1 .1.2. With the torch shut off, the oxygen pressure should be 18 PSIG, and the acetylene 7 PSIG. These

may be varied slightly, if necessary4.1 .I .3. The compressed air pressure must be set at 2 l/2 PSI0 with the heater in place on the stud and the

air flowing before introducing the torch.4.1 .I .4. To prevent flame exrinction, at no time must the air pressure exceed the oxy-acetylene pressure.4.1 .1.5. For S/V diameter stud hoIes, tbe heater pipe should be l/4” pipe and the lengtb of the pipe

extension is critical and should be 75%&M% of the overall stud Iength.4.1 .1.6. The heater pipe shouId be Schedule 40, ‘Qpe 304 stainless steel or better (B5OAF917A or better).4.1.1.7. hi assembling heater pipe, use cautiw, Hand tighten p&then back off l/2 turn or pipe wiii seixe

to rhe heatez4.1 -1.8. The torch should be inaertedup to the bend in the bumes tip tubing. In tbis position the heater

will support the torch,4.1 .I .9. Adjust the ahfiow (or frame) as required to bring the heater pipe to the desired temperature.

Note: When the heater pipe (as observed through the vent holes) glowscherry red (105OoF), the temperature of the heated air leaving thechamber~wi.U be very near the correct temperature.

4.1 .l .lO. During eiongation the stud temperature will rise approximately 300-3509: and the maximumpermissible nut teqatum is 500°F and heater pipe wili stahilixe at appr0ximately 105OOF.

4.1 .l .I1 . If the heat &amber shown on Figure 1 canuot be assembled due to physical re#rictions. and heathas to be generated direcUp in stud hole, then the torch mt,tst be moved *contmuaUv no and dam.JU&UW&, in order to distribute heat evenly along fastener to prevent damage froml-overhearing.

4.1 .I .12 During the heating cycle use ‘Tempilsticks” to de&n&e nut temperature.

Warning: Observe all safety precautions when using the oxy-acetylenetorch Check all gas lines for leaks and ventilate the area toprevent the formation of hazardous gas pockets.

N&SST GENERAL ELECTRIC CO.DEPT FITCHBURG, MA.

I I I

PROCESS INSTRUCTION FORTIGHTENING FASTENERS

SIGNATURES bJm MO o”Y. SEE C A G E C O D E DW. N O .

0k34bw4 CJ Babineau 78 01 1 1 A 1 03502 1 PI 2A-AFI 7muw SEE SHEET 1 SOALE N O N E

GAS TlGNTENlNG

. N Shop Air Supply

Exterml tothe Stud heatingltole COabuS tiontakes place.

Oxygen Acety lene Supply

Plugged End of Stud (on thou stud, and bottoming stud)

VERIFY THAT THE STUD END IS PLUGGEDAND STAKED IN PLACE BEFORE ASSEMBLY

0% N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERSSIGNATUR-m ‘IT SIZE

A 1CACSE CODE

1DWG. NO.

ORMw( CUBablneau 78 01 11 03502 P12A-AF17 R- SEE SHEET 1 SCALE NONE SHEET 7:nmmn no4dC9Ed A

-.-.a- .-a

r P R O P R I E T A R Y INfORMATION

4.1.2. EkctricXalrod

4.1.21. The heating element8 used have inaulstion that ia hydroscopic and it can absorb moisture whennot in service. I-i&em should be stored in a warm dry area. If stored longer than 30 days or ifsubjected to questionable moisture exposure, they should be dried out before applying ratedvoltage. Drying is accomplished by applying l/Z rated voltage for a minimum period of one halfhour. Failure to dry the units would cause a short and bum out the tmit. Application of excessvoltage, even as little 88 3% over rating, can cause burnout. The absolute maximum voltage willbe stamped on the unit.

4.1.2.2. . The heating element, ,565 diameter, is inserted into the same ,625 diameter heater hole in the studthat hot gas tightening uses (see sketch]. The heater element is connected to a voltage sourcecorresponding to the voItage atamped on the heater (usually 115 v or 230 v). The voltage ratingis also stamped on the heater. Heater lengths will be suited to the stud length and wattage ratingwill vary with the length

4.1.2.3. Studs requhing ekchic heat tightening wiI! have a heating element se&ted to suit each studlength invoIved. Each heater should be used with the stud iutended to avoid bottoming of theheater cat&g local overheating or using too short a beater which could lengthen the time to heator prove inadequate to heat the required amount.

4.1.24. During elongation the stud temperature will rise approximately 300-35OT aud the maximumpemdssible nut temperature in 500%

4.1.25. During the heating cycle use Wm@-slicka” to determine xmt temperature.

ELECTRIC-CALROD

COMPONENT

TYPICAL BOTTOMING STUD TYPICAL 2 NUT STUD

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTEN1NG FASTENERS

SIGNATURES

- CJBabheau

-D SEE SHEET 1amn 091-4525A

OYm. No.Pi 2A-AFI 7

-8

--.l

S DWONO,A l ?%A-AF17

IIZWE

, RULES

5.1. Pre-Am&ly

5.1 .I. Check all fasteners for burrs, damage, etc.

5.1.2. Check all fasteners for stamped symbol identification (which will determine stress value), see chart inSection 1.1. If no symbol is visible, fastener is not to be used.

5.1.3. Verify that ail fasteners with heater holes do have a threaded plug staked in place, in the bottom offastener.

5.1.4. Check mating surfaces of components for dents, nicks or other damage.

5.1.5. Check all gaskets for damage, For tightening of gasket joints, see Section 9.0.

5.1.6. Check all threaded holes for foreign material, rust, burrs, nicks or other damage.

5.1.7. If the stretch method of measuring stress is going to be used, determine the “effective fastener length”(EJTL) for each different combination of fastener diameter, fastener length, and flange thickness (seebelow).

EFFECTWE FASTENER LENGTH (E.F.L.)

BOLT 2 NUT STUD BOlTOMINGBOLT - NUT STUD

(ffL)=A+B (EFL)=A+B+C (EFL)=A+B

Ebtample: A=S*, B=l3/8”, (EPL) = 6 3/V’.See paragraph 7.4 (Stretch/Degrees - Standard 45,000 PSI Bt Special 30,000 PSI Stress, respectively).63/IIELP=36°+30-ODor.010+.00Z-.000stretch

0% N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURES YEAN UO DAY -saE CAGE COCE DWG. NO.

DRArm CJ Babinew 78 01 11 A I 03502 I PIZA-AF17wsuED SEE SHEET 1 SCALE NONE

‘ORlUlO91-4525A

5.2.1. All assemblies and sub-assemblies are to be properly positioned, and dowels, if required, are to befiied into position prior to any tightening.

5.22. Apply lubricant as described iu section 2.0 -LUBRICATION, to all threads (external-internal), andall fasteners (bolt-nuts) seating surfaces.

52.3. All bottoming studs are to be wrenched into position by hand, until bottomed. Care is to be exercisedas not to damage stud body. A strap/stud wrench or other suitable means is required. Do not use pipewrenches. Wrench marks are not allowed on stud body,

Do not overwrench - bottom out: the studs must seat on its axis with the threads (i.e., not at an angle),

5.24. For gasketed joint tightening procedure see section 9.0 of this instruction.

5.2.5. 45,000 PSI stress data for tightening fasteners will be used in ah cases for hydrotesting.

5.2.6. Verify that all fasteners with heater holes do have a threaded plug staked in place, ia the bottom offastener.

5.27. For break-in, pretorque see section 7.3 B of this instruction.

5.28. For any chosen method, pretorque all fasteners to values on tables in paragraphs 7.3.1 and 7.3.2,, insequence against seat contact surface, and final assembly tighten using one of the 3 available methods:stretch, degrees, torque.

NOTE: The operator must verify the accuracy of the pretorque by repeating the pretorque tightcntngsequence as many tlma (2 min.) as requhd to assure equal pretorque is achteved.

5.29. Mark an fasteners for sequential tightenbrg.

5.2.10. When power equipment indicated in paragraph 3.2.2 is used, the reaction bar must be positionedagainst the component being tightened, or a-t an already pretorqued nut

5.2.11. Reaction bar is to be positioned to the farthest extension point of power tool location, to maxim& thereaction moment arm and minimize forces being generated.

5.2.1.2. No additional tool extensions shall be used when tightening with power equipmeut.

5.213. lb&fLE& will be used when applicable and wilt be verified by the stretch method on the &atstud torqued for each size 2” and greater.

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERSSIGNAT- s(zE CAQE CODE DWQ. NO.

Dmwr4 CJ Bablneau 78 01 11 A 1 03502 1 P12A-AF17msum SEE SHEET I SCALE NONE

ORM 091-4525ASH= 10

I

8lS DWB.NO.A l Pl PA-AF17 Imit!i

PROPWETAAY I N F O R M A T I O N

5.2.14. NOTE: (When torqueing is used)

AFTER THE FASTEP!ERS HAVE BEEN MARKED FOR CORRECT SEQUENTIALTIGHTENING (SEE SECTION 6.0 -MARKINGS FOR SEQUENTIALTIGHTENING), THE OPERATOR MUST VERIFY THE ACCURACY OFPRETORQUE AND FINAL ASSEMBLY TIGHTENING VALUES BY REPEATINGTHE TIGHTENING SEQUENCE AS MANY TIMES AS REQUIRED (MINIMUMTWO [Z] TIMES), IN ORDER THAT ALL FASTENERS HAVE BEEN EQUALLYPRETORQUED AND FINALLY TIGHTENED TO THE REQUIREMENTS SPELLEDOUT IN THIS DOCUMENT, (REASON TO ELIMINATE STEAM LEAKS.)

5.215. Afler dl studs are in position and when using a covered.wt&& F406$ or slotted nut Ref.,aciuxlc is to be made to assure that all studs have the correct projection above contact surface, and fullthreads are visible, see sketch. If projection hits and full threads cannot be obtained, cause must bedetermined and conective measures are to be taken,

CAUTION

UNDER NO CIRCUMSTANCES MUST ANY STUD BE BACKED OFF FROM ITSBOTTOM POSITXON IN ORDER TO MEET THE CORRECT PROJECTEDLENGTH ABOVE THE JOINT.

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEFT FITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURES WEAN NO DAY so CAQE C O C E

- CJ Babineau 7801 11 Al 03502 1OWG. N O .

P12A-AF17muED SEE SHEET 1 SCALE NONE

_.--_0

- - .0

STUD PROJECTION

PROJEOTIONTHREADS)

25-B 1.2s 1.69 2.25-8 2.25 2.94 (4.00-8 4.00 4.75 I..38-8 138 1.81 2.50-8 2.50 3.19 14.50-8 4.50 5.25

LJN&SST GENERAL ELECTRIC CO.

u” DEPT FITCHBURG, MA.SIGNATURES MD DAY

- CJ Bablneau- SEE SHEET 1DRM OB1-4525A

78 01 i i

PROCESS INSTRUCTION FORTIGHTENING FASTENERS

SCALE NONE . SI-ER 12

IbPASTENESS ON

0%

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS(

SIGNATURES - y” Olr S I Z E C A G E CODE D W G . N O .

DRwm CJ Babineau 76 01 11 A t 03502 1 Pi 2A-AF17muBD SEE SHEET 1 SCALE NONE SHEEET 13nnmn rundm~b A

_.--_. -- ..-_-..-. . ..___-.---.--- --.- -. .___ -0

- _- - - - --

T

‘-1‘ ,‘“. I ..,.” 1 , , ‘, -I-- ,..-, -‘l’l’ycf;plqy-

* 1 5 10

~~,~~.

TYPICAL PLANGS JOINTSSTEAM FLOW APPBOX. CENTER LINE OF BOLT PATTERN

A9 8 8 6 d f d 8 8 b3 b7

I--.+-

I

%I ?4 $3 8 7 I s B y* ck gJ

TYFICALVALWC?IESl!

__--. _0

EVEN NClHBBRSOPPOSI'PB SIDE

TYPICAL TWO PIECE CASIFJG

0%N&SST GENERAL ELECTRlC CO. PROCESS INSTRUCTION FORDEPT FlTCliBURG, MA. TIGHTENING FASTENERS

SIGNATURES van MO D&Y -SE CAQECCDE DWQ. NO.ORwyw CJ Bablneau 78 01 II a 1 03502 1 P12A-AF17geuED SEE SHEET I SCALE NCNE SHEET 1 4

A

t

I

I. , Ie” ., I”’ ‘, , , .’ “.-,-“7’1’-,- ‘1

1 5 10

MARKINGS FOR SEQUENTIAL TIGHTENING (CONT’D)

6366676981636607697173

I. rJ2 -iII

EVEN !%RSOPPOSITE SlDt

ZIONE PIECE CASING \

7677

ii

ts"378991

. qTuRK

19 PACKING BOX

HP PACKING BOX

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORFITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURES W W DAY so CAQE CODE DWG. NO.DRIJNN CJ Babineau 78 01 11 A 1 03502 1 P12A-AF17 Ai!ISSUED SEESHEET 1 SCALE NONE sH= 1 5ORM0914626A

.----__0

SEQUENTIAL TIGHTENING FOR TYPICAL(SYN-GAS) CONE ASSY. (REMOVABLE CONE)

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS _

- fao OAy SEE OAGE CODE

A ( 03502 1

DWG. NO.- CJ Babineau P12A-AF17 ii?!We0 SEE SHEET 1 SCALE NONEDRY 0!3LAS2SA

SHEET 16A

- ._I_--0

l TIGHTENING

This method cannot be used for spiral wouud gasketcd joints,

When degrees are used, the following procedure is to be used. After PRETORQUIMC and BEFOREfti tightening, position degree gage as shown below, and with a straight edge scribe marks labeled ‘93” and‘F” using the degree gage as a location point. Keeping the degree gage in the sme position locate and markline labeled “G” to proper value indicated in paragraph 7.4 tables, then tighten fastener nut so that line ‘F’Ames up with line I%.” Marks are to be l/16” wide.

FlangeFlange

‘lb obtain accuratelocating points, andafter Pretorpuing,positIon degree gageoncenterliaeoffastcub as shown,thenpmceedwithinsIructions above%

Fastener Nut Hex.

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURESwum( CJ Babfneau

sauEo SEE SHEET 1~OiWO914525A

nun 10 DAY smCAGECODE7Bol11 Al 03502 1

DWG. NO.PIZA-AF17 iti!

SOALE NONE alEEr 17

.-- -- ---. -.0

_

1 ,. 1 , ,.* , , -., , , I ’ ‘-I-.. 5 I” 1” 1 , 1 1 1 1 1 -. 10 1 0

0

7.2. ftbs,t&

7.21. For tightening by stretch, the following procedure is to be followed:7.2.1 .I. After effective fastener length has been established and after all pretorqueing is complete In

sequence, proceed to heat (gas/eiectric) or power tighten to obtain stretch indicated from tables inparagraph 7.4 (Support Data).

7.2.1.2. Let stud cool down (if heat is used) to room temp. 70°F. Read stretch value with extenshmteterand validate according to values shown. If stretch is not achieved repeat procedure.

7.2.1.3. After all studs are tightened, remeasure stretch on each stud to assure stretch has not been lost dueto distortion of other components.

TYPICAL

Alternate method when space is not avaitable for the use of an extensiometer.

Special DepthMicrometer

When a depth micrometer special and/orstandard is used, the stretch values indicatedfrom tables in paragraph 7.4 (Support Data)must be multiolied (xl bv 1.25” to obtain the

S-DepthMicrometer

stretch value required.

S P E C I A L DEPIH

7/8 DIA.

MlCROMElER --,

FMSH S U R F A C E J

N&SST GENERAL ELECTRlC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURES TEAN RlO DAYssuE C A G E C O D E D W G . N O .

ORAWN CJ Babineau 780111 Ai 03502 1 PI 2A-AFI 7 wmstm SEESHEET SCALE NONE SH= 18

‘ORM 091-4525A

7.87. TORQUE-FI’-LBS.45,OOOPSISTRESSSTD.To be used for hydrotest and assembly.

See Note5.2.16

* For break-in pretorque multiply (X) vabm indicat& in this column by 1.25 then back off andpretorque to values indicated.

**Final assembIy torque shall be +/- 10% of va!w indicated.

N&SST GENERALELECTRICCO. PROCESS INSTRUCTION FORDEPT FITCHBURG,MA. TIGHTENING FASTENERS

SIGNATURESDRAwI( CJ Bablneau

T -~- MI DAY SIZE CAGE CODE

73 01 1-1 A 1 03502 1DWB. NO.

P12A-AF17REVAB

muED SEE SHEET 1 SCALE NONEORM 091-4!52!5A

*EEr 1 9

P R O P R I E T A R Y I N F O R M A T I O NI6 6OWWW IMWJDW pRWIWYARY lNFORMAHON OF Me OtHERAL ElScmlK: C- UID M&Y NOI 86 US0 FOR PUFiPOSI OTHER lHHuI THAI FOR WHlcH ll WAQll0WlJ.Y RIR~.WExcz~wllHwRfmwpLRIII~BIoHHlOM~8NAW ABWAU-WW~ ot3anmm awwu~mmc

7.3.2. TORQUE-FI’-LBS. 30,000 PSI STRESS SPECIAL‘lb be used for assembly, not hydrotest.

See Note 5.2.16

* For break-in pretorque multiply (X) values indicated iu this column by 1.25 thea back aff audpretorque to vahea indicated,

Wi assembly torque shall be +h 10% of values indicated.

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURES EAR MO DAY -SIZE C A G E C C O E

DRMNN CJ Babineau 7801 11 Al 03502 tD W G . N O .

PIZA-AF17- SEE SHEET 1 SCALE NONE I-3 20

.-. -._ _--_ --.0

_

1 ,’ 1 ,. ‘^.., , , I , '1'1'17--l-l- -- 5 .-- -- lo

--.0

1

For paragraphs 7.1 and 7.2

STRETCH/DEGREES

STANDARD 45,QOO PSI STRESS

Used for Hydro Test and Assembly; 8 Pitch Threads

I I15.00-1538 1 8 3 I A23 I15.75-16.25 86 .02416.38-16.88 90 .02517.OM7.63 94 .026

’17.75-18.25 98 .02718.38-18.88 101 .02819.0619.63 105 .029

NOTE:1 . Stretch values indicated are only to be used with an extensiometer measuring gage.

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORFITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURES YUR MO DAY’81zE CAGE CODE DWQ. NO.D- CJBabineau 78 01 11 A 1 0 3 5 0 2 1 P12A-AF17 AlmwED SEE SHEET 1 SCALE NONE

‘ORI 091--4!52!iASHEEr 21

__--.0

For paragraphs 7.1 and 7.2

STRETCH/DEGREES

SPECIAL 30,000 PSI STREFB

Used for Assembly Only; 8 Pitch Threads

Use for -F804A, 805A, 806A - F816A FASTENERS

1.00-1381 ScL2.382.50-3.383.W.38 15 .004

4.50-5.38 19 .005 3a5.50-638 21 ,0066.5G7.38 25 slo77.50-8.38 W .008850-9.38 33 .0099.50-1038 3 6 .OlO10.50-11.38 40 .Oll11.50-12.38 44 -012

NOTE:2 . Stretch vaiues iudicatcd are onIy to be used with an extensiometer measuring gage.

N&SST GENERAL ELECTRIC CO. PROCESS INS1I-RUCTION FOR- _ _-.. . -__DEPT FITCHBURG, MA. TIGHTENING FASTENERS.

SIGNATURES WAn No DAY sm CAGE CODEtau 78 01 11 A 1 03502 1

DWG. NO. I RIPl2A-AF17

ET1 SCALE NONE t SHEEF 22‘- CJ Babinc IAIsBuED SEESHEI

‘ORM 0814525A- -

. INSPECTION

8.1. Proper Stud Extension for Covered Nut

Proper Stud Extension for Covered Nut

1.38 1 1.69 1 2 1 3 1 2.50 [ 2 .00 1 2 .69 1 4 .50 1 2 .50 I I I

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURESDluwN CJ Babineau- SEESHEETI

- m D*y, SEE CAQE CODE

78 01 11 A 1 0 3 5 0 2 1DWG. NO.

Pl %A-AF17SCALE NONE a+= 23

OIUW 091-4!525A

I

, (I. .‘.%, ,----,---, -’ , ,II II II-11 II l

5 m

--.l

8.2 Thread Projection Above Hex Nut & Self&king Nut

Thread Projection Above Hex Nut & Self Locking Nut *

e run flange Bssflnblies “K” thread projection is to be in accordance with 165A213XD.

“K” = Minimum One Thread, not including chamfer

Maximum 3 Threads Sizes 3/g-16,1/2-13, 5/8-11,3/4-10,7/g-94 Threads sizes l-8,1 l/g-g, 11/4-g, 13/g-g5 Threads sizes 1 l/z-g6 Threads Sizes 13/4-g7Th?adssizes2-g8 Threads Sizes 2 l/4$,2 1/2-g9 Threads Sizes 2 3/4-g

N&SST GENERAL ELECTRlC CO. PROCESS INSTRUCTION FURDEPT FITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURES

m4w4 OJ Babineau

- SEE SHEET 1

YEAR MD DAY slzE C A G E C O D E

7 8 01 II A 1 03502 1DWQ. N O .

P12A-AF17SCALE NONE I=- 24

ORM 0914828A

GASKETED JOINTS

PIPE RUN AND/OR COMPONENT

SPXRAL WOUND

GASKBTSPIRAL UOUIlO

OASKET

SPIRAL YOUHD 6ASICET METALLIC 6ASKDT

TYPEAL 6ASUETED Joiwts

N&SST GENERAL ELECTRIC CO.DEPT

PROCESS INSTRUCTION FORFITCHBURG, MA.~ TIGHTENING FASTENERS

SIGNATURES‘- CJ BabineauB6uED SEE SHEET 1 SCALE NONE

af

.-0 _ --.1

I 1 ““‘I I I ’ I ’ 1-1 I ’ I ’ I ’ J-q----o-. 1 5 1 0

P R O P R I E T A R Y I N F O R M A T I O N

9.1. procedura

9.1 .I. ThoroughIy ckan the gasket seating surfaces of all foreign matter (preservation, chips, etc.) prior toassembling and tightening.

9.1.2. Install the gasket on the gasket seating surface and bring the cover flange in contact with the gasket.

9.1.3. Install all bolts, making sure they are free of dirt and grit, and are well lubricated.

9.1.4. Run up aU nuts to pretorque tight. Values indicated on table in paragraph 7.3.1 for 45000 PSI stress oron table iu paragraph 7.32 for 30000 PSI stress following a tightening up procedure in sequence asrecommended in section 6.0 Mll?KN GS FOR SEQUENTIAL TIGHTENING.

9.1.5. Sequential tightening procedure for flanges having up to and including 6see section 6.0MARKINGS FOR SEQUmM TIGHTMING.

9.151. 30% TorqueRepeatability not required

9.1.5.2. 80% Torque )9.1.5.3. 100% Torque ) to be performed counterclockwise or chxkwise till all fasteners are equaI!y

torqued.See table in paragraph 7.3.1 for 45000 PSI stress torque values.See table in paragraph 7.3.2 for 30000 PSI stress torque values.

9.1.8. Sequential tightening procedure for ff anges having more than § faateneq, see section 6.0 MARWNGSFOR SEQtfENThiL TlGIdTENmG.

9.1.6.1. 30% TorqueRepeatabiXity not required

9.1.6.2. 80% Torque )9.1 B.3. 100% Torque ) to be performed couutercIockwise or clockwise M all fasteners are eq+y

torqued.See table in paragraph 73.1 for 45000 PSI stnxs torque vaks.See table in paragraph 7.32 for 30000 PSI stress torque values.

9.1;7. Final torquiug will be verified by the stretch method on the first stud torqued for each size 2” andgreater. (See Conformance Sheets.) For sizea less than 2” only the torque method may be used.

9.1.8. AU sheet gasketed joints shall be tightened to 30000 PSI stress.

9.1.9. Spiral wound gaskets may only be used ouce.

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTiON FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURESDRAwEl CJ Bablneau- SEE SHEET 1

- Me D”. SIZE C A G E C O D E

78 01 11 A 1 03502 tD W G . N O .

P12A-AF17SCALE NONE SH= 26

ORM 0914525A

I

‘0. PIPE FLANGE ASSEMBLY PROCEDURE FOR NAVY APPLICATIONS

Pi flange assembly procedure for spiral wound gaskets used for Navy applications:

In order to ensure a leak-free seal, it is imperative to apply an even compressive force on the gasket. Thisrequires mating flanges bolted together in a parallel condition. Once parallelism is established, a sequentialtorquing pattern shall be used.

10.1. The following pre-bolt check should be done:

A. The correct m gasket shall be used. Spiral wound gaskets may only be used once,B. Mating flanges shall be true and parallel.C. Fhmgea shall be clean andI& of surface damage,D. Flanges shall have the correct surface finish.

10.2. Install the gasket and bring the mating flange in parallel contact with the gasket.10.3. Install ail bolts, making sun? they are free of dirt and g6t, and are well lubricated (for free flanges).10.4. Rupnp all the riots finger tight (for free flaugcs).105. Develop the required bolt stress in a minimmn of four steps, following a tightening up procedure as shown

in Chart 10. It is important to make certain that no more thau 30% of the total gasket compression isachieved on the initial set. Should this occur, serious damage can be done to the gasket aud subsequenttight&g cannot offset the damage. After following this sequence, a final tightening should be puformedin a clockwise bolt-&bolt sequence to ensure that all bolts have been evenly stressed.

.

By following the above segucnce, a reasonably even compressive force cau be exerted on the gasket.lb the maximum extent possible, flange faces shall be ma&a&l parallel during tightening of the fasteners.TheAnal~cecriteriaforaflangeasse~lyshaII~theamountafgasket~~asmeasutediafigure 10.

10.6. Measmegapsbetweurtbeflangeraisedfaceandthegaskerouterringonboths~~g~oaterringatfour places 90” apart. At each place the sum of the two gaps on either side of the outer ring should be lessthan.OlOinches. SeeFigure 10. ~thcreqaicedgapisnotachi~~finaIessemblyaarquemayexceedvalues&owninpftragmpb?.3.1by 60%. The16o46valveaareshoftmin~tablebelow. Ifthegapisnotachieved up to 16046, the joint should be documented on a quatity repon for evaluation and disposition,j~~:.~:~;~‘i:~ti;.~~i~:. x!!;< :~-s::.~:~.~~~.~~:.. . , . ;4**<.,.,.,* ,,,,. : :..:.:.-.:..;. ,...:

:.;sm-‘:*i+x” _... ;-:...: ._..:. : . . . > ‘y.y. .’ :. .< . . . . . . . . . . . .,..., . , , zzxF ,,?... .y*:%.?< ‘:w.*;fl...... Y’..y 2.:::,‘:.:<$.c- ,?::,.:“ “.+:.;.. “‘,.... . . . . . . .. . .T.. . . . . .../ __ , . ..._: I,._ . , .r.i,,. _ _._. :,+ .y...:;:i. / I. . . . . . . . . :sfl$!&!!gQgq&~,: ;“~;~.i~:.~~.~~~.~~~~:; :?>.p-‘y?? i;..,. ~ . . . . . . . . 2 . . . . ._.-. . . . . . . :, ., :. ..:0.38 30 ETLBS050 75 lTLTBS0.63 13oFrLBs

0.75 2soFrLBs

0.88 4OOITLBS1.00 6OOFlYLBS

08%N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBVRG, MA. TIGHTENING FASTENERS

SIGNATURES -~~slzE CAQE CODE DWG. NO.

‘- Cd Bablneau 78 01 11 A 1 03502 1 P12A-AF17-ED *sheet1 SCALE NCNE sag 27‘M., M. “~C. *

0 -

PAOPRIETARY INFOAMATlONl6DDolwtn91cu1o61) PNommANYiNFonwATl0noFlNE DENERMBE~CDWANYAHDUAYllDTBliU~DFOR PuNFo6wolwnNmullwATFoNwNwlTw#UODlAUY~~C~~P6NMl66tONFNOM MB HAW a lNmJ. maw glNN6 DEPAwIMw. 06)(1IRAL m6olmoooNPANY.

FIGURE 10

GAP MEASUREMENT

U-LANGEME+URE GAP AMEASURE GAP BADDA+B

FLANGE ASSEMBLY IS ACCEPTABLE FOR A + B LESS THAN .OiO ATEACH OF FOUR LOCATIONS TAKEN 90 DEGREES APART

CHART 10

BOLT TlGHTENlNG SEQUENCE

4 BOLT FLANGE 8 BOLT FLANGE

N&SST GENERAL ELECTRIC CO. PROCESS INSTRUCTION FORDEPT FITCHBURG, MA. TIGHTENING FASTENERS

SIGNATURESOwm CJ Babineau- SEE SHEET 1

bEAll WO DAY sm CAGE CODE

78 01 11 A t 0 3 5 0 2 1DWG. NO.

P12A-AF17 RSCALE NONE b- 28