ML20116B614
| ML20116B614 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 07/03/1996 |
| From: | Ansari A, Kisisel I COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20116B576 | List: |
| References | |
| L-000566, L-000566-R02, L-566, L-566-R2, NUDOCS 9607300141 | |
| Download: ML20116B614 (24) | |
Text
{{#Wiki_filter:: , Exhibit C NEP-1242
.- . .' . Calculation Title Page Revision 2 Calculation No.: L-000566 Page No.: 1
@ Safety Related O Regulatory Related O Non-Safety Related Calculation
Title:
Evaluation of Henry Pratt S4~-Triton XL Butterfly Valve with a H3BC operator for Seismic Loads Station / Unit: LaSalle /1,2 System Abbreviation: RH(Alsorelated CSC) Equipment No. Of appt): Project No. or appt) 09066-313 OE12-F300 Rev.: O Status: V QA Serial No. or Chron No. Date: 7/3[ff; Prepared by: H. Kullecowda ./ N - kh# Date: 7[3 /d Revision Summary: OriginalIssue 4 Electronic Calculation Data Files Revised: (Name ext /stre/date/ hour /; mirWenfcaten methocLtemarks) l N/A I Do any assumptions in this calculation require later verification? O Yes @ No ; _ , i Reviewed by: A. Ansari/ Al Date: 7/3 / % ' I' I / Review Method: Comments (C or NC): NC A Detailed Review of the Original Calculation c I - I Approved by: 1. T. Kisisel / [f#al g-
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Date: 7/288 t ( 7p , 9607300141 960722 PDR P ADOCK 05000373 PDR
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Exhibit D I NEP-12-02 Revis'mn 2 COMMONWEALTH EDISON COMPANY , CALCULATION TABLE OF CONTENTS PROJECT NO. 09066-313 CALCULATION NO. L-000566 REV. NO. O PAGE NO. 2 DESCRIPTION PAGE NO. SUB-PAGE NO. TITLE PAGE 1 REVISION
SUMMARY
TABLE OF CONTENTS 2 j PURPOSE / OBJECTIVE 3 3 METHODOLOGY AND ACCEPTANCE CRITERIA ASSUMPTIONS 3 DESIGN INPUT 3 3 REFERENCES CALCULATIONS 4
SUMMARY
AND CONCLUSIONS 19 ATTACHMENTS y, 3 b
Exhibit E
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NEP-12-02 Revision 2 COMMONWEALTF EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. 3 l .
- 1. PURPOSE / OBJECTIVE The purpose of this calculation is to verify the adequacy of Henry Pratt 54" Butterfly i
! Valve with a H3BC operator for the postulated seismic loads. Valve Tag Number. OE12-F300
- 2. METHODOLOGY AND ACCEPTANCE CRITERIA !
The subject manual valve is required to maintain its pressure and structural integrity i during and after a seismic event. It is also required to maintain its closed or open position in case of a seismic event. To show that the valve will maintain its closed or open position during a seismic event, the disc to shaft attachment pins and the shaft ' will be evaluated for the postulated seismic loads. Evaluation of valve body and neck, and the extension stem will also be performed for seismic loads.
- 3. ASSUMPTIONS None i -
- 4. DESIGN INPUT The design input for this calculation is from References 1 through 10. The references are listed in Section 5. k '
i
- 5. REFERENCES
- 1. Henry Pratt Company Drawing No. C-1977, Rev. 3
- 2. Henry Pratt Company Drawing No. B-2877, Rev. 3
- 3. Valve data from Henry Pratt Company (Attachment - A)
~ 4. Marks' Standard Handbook for Mechanical Engineers, Eighth Edition
! l REVISION NO.: 0 l l l i
g, m rA u mk
.o. ; -
Exhibit E . NEP-12-02 Redsion 2 COMMON'NEALTP EDISON COMPANY 1 l l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. 4 I i
- 5. Formulas for Stress and Strain by Roark and Young, Fifth Edition
- 6. AISC Manual of Steel Construction, Eighth Edition 1
- 7. DC-SE-02-LS, Revision 0; LaSalle County Stahon Seismic Response Spectra Design Criteria. t
[ l
\
- 8. Extension Stem Top Portion (Handle Bar) for Opening the Valve (Attachment - B) l
- 9. Calculation No. L-000556, Revision 0 (Evaluation of 54" Steel By-Pass Line, Lake Screen House)
! 10.1983 ASTM Standard, Volume 01.01 and Volume 01.04 l 11.1983 ASTM Standard, Volume 01.05 i
- 12. Henry Pratt Company Publication " General Characteristics of Butterfly Valves, 1984 (BBGC 84)"
^.
i
. l REVISION NO.: 0 -
l 1
- o. l Exhibit E NEP-12-02 Revision 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. 5 l
- 6. CALCULATIONS Calculation of Beam Mode Shapes for Extension Stem:
Per Ref. 3, the extension stem is a 1-1/4" solid square and the' material is i AISI M1020 carbon steel. Outside Dimension: B := 1.25 in 8 E := 3010 psi L := 266 in l l The length of extension stem does not include the removable piece (handle bar) (See Attachment B). 2 Area of Stem: A := B A = 1.563 in 2 4 Moment of inertia: I := 0- I = 0.203 in# 12 . g := 386N " sec2 p := 0.283 Ib 3 in '! w := A p w = 0.442 h in From Ref. 5, Table - 36, Case 3b, the fundamental natural frequency is calculated as follows: K n1 = 3.52 K n2 .= 22.0 K n3 .= 61.70 K n4 := 121.0 K n5 .= 200.0 l REVISION NO.: 0 l
Exhibit E
. NEP-12-02 -~ - Revision 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. 6 l
! K n1 'E l g f i n1 * ],{' 4 fn1 = 0.578 Hz i K n2 I E-l g I n2 = },p' 4 fn2 = 3.614 Hz , l I K n3 E-l g I n3 = },{' l 4 fn3 = 10.136 Hz K n4 l Elg f n4 * },{' 4 fn4 = 19.877 Hz i l I f ' n5 = 2 x s wL 4 In5 = 32.854 Hz i The deflection.of the stem is limited to the gap inside the 5" pipe. Note that the structural integrity and stability of the 5" soil pipe around this stem is shown in ' Ref. 9.. Per Ref. 6, the inside diameter of the standard wall pipe is 5.047" The shaft is 1.25 inch square section. - - ' 3 ., (5.047 - 1.25) in l 2.52 2 2k 2 1 2 4 2.52 - 1.25 rin I ( / 6 = 1.82 in Inspection of applicable spectra indicate that the energy content of the seismic motion is maximum between 2 Hz to 10 Hz. Thus major deformation of the shaft will take place following either of second or third mode shapes. Considering node points and boundary conditions, two spans will be evaluated as enveloping cases as follows: ( l 4 l REVISION NO.: 0-l
Exhibit E NEP-12-02 ~. Revimoa 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L 000566 PROJECT NO. 09066-313 PAGE NO. 7 l a) Second mode, first span, one end fixed, other end supported at 0.783x L. b) Third mode, first and second spans, one end fixed, and nodes at 0.504xL, and at 0.868xL. For all cases, enveloping peak x 1.5' acceleration value from both OBE and DBE spectra will be used to asses stresses and / or deformations. Envelooed acceleration value in units of c(Ref. 7, Pages C - 123 through C - 126) ah = 1.5 3.2 ah = 4.8 Compute Deformations Second Mode. First Soan 4 621 WsL21 /185 E I with L21 = 0.783 x L i Third Mode. First Soan 4 531 WsL31 /185 E I with L31= 0.504 x L , Third Mode. Second Soan . 4 632 = Sw Ls 32 / 384 E I with L32 = 0.364 x L ~ - Compute: L 21. = 0.783 L L 21 = 208.278 in w s = w ah w s = 2.123 Ib-in l REVISION NO.: 0 I j i
Exhibit E
.. NEP-12-02 / -
Revision 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. 8 l i 4 6
- s'l 21 21=185Ef 521 = 3.537 in ,
l Deformation is gap limited, calculate stress based on gap. l l L 31.= 0.504 L L 31 = 134.064 in i 4 w s'l 31 31 = 185 5 f 531 = 0.607-in i Deformation is free, calculate stress based on load. l l l L 32 = 0.364 L L32 = 96.824 in 5w s L 324 6 32 = , 384E-{ 532 = 0.398 in Deformation is' free, compute stress based on load. l Stress calculation: Second Mode. First Soan !*~ 4 5=wLs 21 /185 E I . i 185 E-l 5 ! i w1=- s 4
- s1 = 1.092in lb-L 21 2 :
M=
- si'L 21 M = 5920.935 in Ib
- 8 i :
l REVISION NO.: 0 I
. . - . . _ _ _ , _ . _ - _ - - . _ _ - . ~ - --
Exhibit E NEP-12-02
,- Revision 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. 9l MB 2
fb= Ib = 18189.114 psi l l Third Mode. First Soan ., ., 2
- s' l 31 M :=
8 M = 4768.503 in lb l MB_ 2 fb ;* Ib = 14648.841 psi l Third Mode. Second Soan 1 2 i M := Ws'l 32
' ~
8 M = 2487.275 in Ib
~
MB
- 2 l
l fb= l Ib = 7640.908 psi _ Maximum stress is 18,189' psi. For AISI M1020, S y .= 63.7 ksi (Ref. 4, page 6-35, Table - 15) The allowable stress per Ref 6: - ' I4 F b .= 0.6 S y i F b = 50.96 ksi > 18,189 psi l Therefore, the extension stem is seismically adequate. ' 4 l REVISION NO.: 0- l I
Exhibit E " NEP-12-02
' Revision 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 0906S-313 PAGE NO. /0 l Natural Frecuency of Shaft iTorsional Vibration) 2 Minimum Shaft Area (Ref. 3): A s = (10.463 + 0.5373) in Minimum Shaft Diameter: ds s*U f4 As d s= d s = 3.742 in 4 x K= Shaft torsional stiffness Constant xd s 4 K .= 4 K = 19.259 in 32 L = Length from center of disc to point where the shaft is restrained L .= 41 in E = 30108 psi l
v = 0.3 , G = Shear modulus i G= 7 2-(1 + v) G = 1.154 10 psi D = Diameter of disc D = 54 in R .= D R = 27 in i' 2 w = weight of disc w1 = 1201 lb 4R t Y*3.~ y = 11.459 in ! l REVISION NO.: O I
Exhibit E NEP-12-02 Rmsion 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. // l m := w1 2g J = Mass moment ofinertia J := 2 m y2 , From Ref. 5, Table - 36, Case Ba: 1 GK f 3 .= 2.x JL f $ = 18.341 Hz l Seismic Acceleration: The seismic forces have the potential to excite the disc-shaft assembly in the torsional mode. Thus, the enveloped accelerations will be used to assess torsional loading due to.s.eismic loads on shear pins. i From Ref.7, pagei C -123 through C - 130 (Envelop of OBE 1% and DBE 2% in all directions). - The g value at 18.4 Hz or 0.054 sec. period is: ( a := 0.52 l,. Since the curves are flat at this region, there will be no multimode participation. Torsional Moment: . ! MT = 2I y a 2 M T = 7156.472.in Ib i l l l REVISION NO.: -0 l
l Exhibit E
. NEP-12-02 - - Revision 2 COMMONWEALTH EDISON COMPANY -
l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. 12. I l Check Disc to Shaft Attachment Pin l l M T = 7156.472 in lb l ds= Dia. of Shaft d , = 3.742 in Number of pins: N := 3 i Diameter of pins: D p .= 1.5 in Area of pin: 2 ( A P .=43 DP 2 A p = 1.767 in Shear Load per pin: y, MT
. Id sI V = 1274.824 Ib N,
t2/ Torsional 3 hear stress: V f ,$ := A fs1 = 721.403 psi P Direct Shear stress due to dead weicht and seismic: - i w1-(1 + a) i fs2 ' NA p 9 fs2 = 344.344 psi Total Shear stress: Isis 1 + fs2 f3 = 1065.747 psi i l REVISION NO.: 0 I
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Exhibit E NEP-1242
# Revision 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066 313 PAGE NO. /J l Per Ref. 3, the material of the pins is ASTM A-276 Type 304 SS.
Per Ref.11, the yield strength: S y .= 30000 psi The shear allowable per Ref. 6,
~
f4) F s .= 0.4 S y F s = 16000 psi (3/ F s = 16000 psi > fs = 1065.747 psi Therefore, the pins are acceptable. This result will apply to closed and open positions of the valve based on the following: i
. Seismic loads are enveloped directionally.
. The flow direction is towards the flat side of the disc as indicated on the Reference 1 (shaft downstream arrangement).
In such cases, when valve is full open, the hydrodynamic torque is small as indicated by Ref.12 and assists the valve to stay open.
. As shown above'the stress due to seismic torsional and direct shear is very small compared to the allowable value. -
Check the Shaft Direct shear due to seismic force and shut off oressure Weight of disc: wi = 1201 lb (Ref. 3) Weight of stub Shaft: w2 .= 143 lb (Ref. 3) Shut off pressure: p := 15 psi (Ref.1) D = Diameter of disc D = 54 in (Ref.1) l REVISION NO.: 0 l
Exhibit E NEP-12-02 Revision 2 COMMON','EALTH EDISON COMPAi4Y l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. /4 l
- Area of Disc: 2 A d := D 2 A d = 2290.221 in F x .= (wi + w2) ah + p A d Fx = 40804.516 lb -
F y .= (wi + w2)-(1 + a) - F y = 2042.88 lb 2 A s = 11 in . 2 F x,p y2 s1 2A s Is1 = 1857.023 psi Torsional Shear Stress: l 8 4
..d s i S := 32 S = 10.292 in 3
l /d sI .
.(2) -
f s2 = M T Is2 = 695.34 psi S ! Total Shear stress: 4 s=Is1 + fs2 f3 = 2552.363 psi 1 The shaft material is 18 -8 Type 304 SS (Ref. 3). The yield strength is: ;' S yj .= 35000 psi (Ref. 4, Page 6-39, Table - 19) 8 4 l REVISION NO.: 0 l l l I
i Exhibit E
- NEP-13 42 Revision 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. /F !
Per Ref. 6, the allowable stress: (4) F 3 := 0.4 S yj F s = 18666.667 psi (3/
-Therefore, the shaft is adequate.
! Check Valve Body for Pressure & Structural intearity Valve Body: Material A-36 (Ref.1) Thickness = 1" (Ref.1) Yield Strength = 36 ksi Attached Pipe: Material A 134 Grade A283C (Ref. 9) Thickness = 0.50" (Ref. 9)
-yield Strength = 30 ksi (Ref.10)
By inspection the valve body ~is stronger than the attached piping and the pipe is qualified in Ref. 9. Therefore, the valve body is adequate to withstand the postulated seismic loads, and to maintain its pressure and 8 structural integrity during a seismic event. Check Valve Neck input Data (Refs.1 & 3): Trunnion Outside Diameter D := 8 in Trunnion inside Diameter d := 4.501 in } l REVISION NO.: O l l
- r. -
- Exhibit E NEP-12-02
Revision 2
- COMMONWEALTH EDISON COMPANY l CALCULATION NO.
- L-000566 PROJECT NO. 09066 313 PAGE NO. 16 l Area: 2 2 A .=4 l-(D - d )
2 A = 34.354 in i Moment ofinertia: I ;= 1-(D4 - d4) 64 - 1 I = 180.915 in# L l Section modulus: S := IDi 3 1 - S = 45.229 in i2/ Polar Moment of inertia: J := 2-l
- d J = 361.83 in Weight of Operator.
W o = 525 lb l Based on conservative estimate, the length of trunnion: L := 15 in We.ight of Trunnion: W t =Apl_ . W t= 145.833 lb Total Weight: W := W o+Wt W = 670.833 Ib Use 700 lbs. W := 700 lb l REVISION NO.: 0 - l
Exhibit E -- NEP-18-02 Raision 2 COMMONWEALTH EDISON COMPANY j l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. /7 l Seismic Acceleration (a ) Values: From Ref.7, pages C -123 through C - 130 (Enve!op of OBE 1% and DBE 2%). Conservatively, assuming flexible, use peak g values multiplied by 1.5. Horizontal direction (Envelop of N-S and E-W):
. i ah := 1.5 3.2 ah = 4.8 Vertical direction (Envelop of floor & wall): l av := 1.5 3.3 av = 4.95 ;
Total Loads (DW + Seismic) ; Fx.= W ah Fx = 3360 Ib Fy := W-(1 + av) Fy = 4165 lb Fz.= W ah Fz = 3360 Ib I The estimated eccentricities from Ref.1: i ex := 9 in ~ ey := 15 in ez := 15 in Mx := Fy ez + Fz ey Mx = 112875 ~in Ib , My .= Fx ez - Fz ex My = 80640 in lb Mz := Fx ey + Fy ex Mz = 87885 in lb Normal Stress:
\
1
~
f Fy
+
!Mx2 + Mz 2 -
n * ~A S fn = 3284.142 psi , l REVISION NO.: 0 l l k -a
Exhibit E NEP-12 02 l~
' - Revision 2 COMMONV!EALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. // l Shear Stress:
ID 2 Fx + Fz 2 % yj\ fs* A J fs = 1029.785 psi . Allowable stresses:(Ref. 6) l F n .= 0.6 36000 psi-l 4\ F n = 28800 psi > fn = 3284.142 psi (3) l)4 i F s .= 0.4 36000 psi 1 Is = 1029.785 psi F = 19200 psi > Therefore, the valve neck is adequate for the postulated seismic loads. l I l l I 1 l i
- -.. l l
l I l l 1 l REVISION NO.:.- 0 - I . i l
Exhibit E l NEP-12-02 Revision 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. /9 l
- 7.
SUMMARY
AND CONCLUSIONS As shown in Section 6 calculations, the subject valve is adequate for the postulated seismic loads. . l
- 8. ATTACHMENTS A. Valve data from Henry Pratt Company (6 pages)
B. Extension stem top portion (handle bar) for opening the valve (1 page) l I I
~
l l l l i a i l l REVISION NO.: 0 l
~
ATT AC.M ME N T - A Exhibit E 1 NEP-12-02 Revision : COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. A 1 l < FACRTMTT.F TRANSMITTAL i FROM: 8 I JOHN TRIPLETT sat.zSENGEN2RSUPERVISOR DAM [-3~b sPAREPARTS REPAIR $ y l}. /fg A / (, dd$FC. jRrmomsRm.4camrs
- _422 nev~rd i-uMPY l FAX #: J / 2.- 241 - t /7 f
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e l REVISION NO.: 0 l
h*TTA CH MENT -4 \~
. Exhibit E . NEP-12-02 Revision 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 , PAGE NO. A 2.1 ,
I h AintT.?% CU3TOMER: COMMONWEAL *3 ETSCN (rmT2 07tIlrIT SIN ) (ti i/7 P. O. 6430s RQfLS4079 w { P212T P. O. S023528-1 '. , j DA2'E JULT 2, 1998 I EUBJECrs VALVE DA2*A FOR 54' 2L 1BUTIER.YLT TALVE
REFERENCE:
CRIGDIDLL PRATT P.O. 7-4325-8
'DLG NO. OE12-F300 The requested valve data is h4 =ked below
- 1. Disc Maight: The calculated disc vaigh- is 1201 lbs.
- 2. shaft Weighti 'Ita calculated tetal weight of the tcp and bottom st.nb abafts is 143 lbs. .
- 3. Shaf t e4-d== . !
crcs. .;, action The shaft e-4n4=m shaft-actuator cross-section angagement a=d woccurs h4 - cross-at the section is 10.4C3 i=2 excludin area cf .875x.6140 = 0.5373 i="g the kayway
- 4. Disc to Shaft, attachment pin datas PleasE rafar to the sketch #1 attachad.
- 5. Yalve neck cross-sections
- Outside diameter Insida diamacar of of the Trunnion = a.0 in.
i 4 m = 4.501 in, , 1
- 6. Extension Star.:
wh ! dat V / The extension stem is a 1-1/4' squara etabes The Stem snatarial is Cazbon steal AISI MIC20. Placsa refer to the sketch #2 attached for set screw sad drive i collar 2.=ferr.ation. Alloy steel 5/15-18 N.C(2) headless socket set screws are used to hold the extansion shaft and valve stem in the drive collar. e hNE 1 tas Enc 1: 2 e .
,_: va,-
4 - m me. - 1 4
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l REVISION NO.: O I 4
~
ATTACHMEhl'T - 4 Exhibit E NEP-12-02 jo ' . Revision 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L.000566 PROJECT NO. 09066-313 PAGE NO. A 3 l I 07/02/ss 14:28 R1 704 844 41st kt3RT PRATT 2001 l - i 4 1
. 401 Soveh &ghland Avenue
.l M j Amers.whness cosaHas: Paeer 7ma au mm
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j i Fac fou44.4134 i i l July 2,1996 i E- _-i Fannn Co, LaSalle Commy Simion j RR #1, Box 220 2601 N.21stAnad , Manei5es. IL 61341 4 Anonnon. TommBea , I Rat ComunonweshhEdison PO# 54305 Req #LS4079 l HenryPtsu Orders 023828
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l l
Dear Mr.Best:
)
1 In coznphance wnh Conarset .+% please find encloseo one copy of ' thwarr-vanon for a 54' Triton XL Buner0y Valve wah a H3BC operator Jag Nunbar OE12-D00, onginalPran order 7-4926-8.
- - l a
Sincerely, FNRY17ATT COMPANY John Tripiset s aiortwjectManas r cc: L10asel/Sargent & Lundy ! l l REVISION NO.: 0 I
ATTACI4 MENT- A e NEP-12-02 Revision 2 COMMONWEALTH EDISON COMPANY l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. A4 l 07/t2/se 18:20 TF1 708 844 4191 sENRY PRATT gogg a E CUS7UMER: CDPMONNEALTi EDISON (LASALLE COUNIT STN.)'. \Y! ! / '7 l P. O. 64306 EQ#LS4079 w l PRATT P. O. SO23828-1 I DATE: JULY 2, 1996
SUBJECT:
VALVE DATA FOR 54' XL BUITERFLY VALVE
REFERENCE:
ORIGINAL PRAIT P.O. 7-4926-8 TAG ND. CE12-F300 The requested valve data is fu:nished below:
- 1. Disc Weight: The calculated disc weight is 1201 lbs.
- 2. Shatt Weight: The calculated total weight of the top and bottom stub shafts is 143 lbs.
- 3. Shaf t r4 "4 == "te shaf t e *"4 == cross-section occurs at the cross-section shaf t-actuator engagement and =4n4=tm cross-section is 10.463 in . ax=luding the keyway 8
area of .575x.6140 = 0.5373 in*
- 4. Disc to Shaf t attt+=9e pin datas l
Please refer to the sketch #1 attached. l S. Valve neck cross-section:
)
Outside diameter cf the Trunnicn ' = 8.0 in. Inside diameter of the trunnion = 4.501 in.
- 6. Extension Stem The extension stem is a 1-1/4" square tubis. The Stem snatorial is Carbon steel AISI M1020.
Please refer to the sketch #2 attached for set screw and drive collar informatien. Alley steel 5/16-18 N.C(2) headless socket set screws are used to hold the extension shaft and valve stem in the drive collar. Prepared by: N N Approved bya, oates p/* nate: ya/rd Encle 2
- _aaaas w l REVISION NO.: 0 _
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.. ATTACHMENT- A Exhibit E NEP-12-02 -4 Revision 2 :
COMMONWEALTH EDISON COMPANY i l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 , PAGE NO. A 6 I . IFINM t i eu.v.. ..... => ro. ... i. , ,. m , .... . E d k 4 i .I t*+
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Exhibit E
.. A7'TA C//ME*N 7" - B ntr.12.c:
*3 - Revision 2 i
COMMONWEALTH EDISON COMPANY , l CALCULATION NO. : L-000566 PROJECT NO. 09066-313 PAGE NO. 31 l : ) SENT SY: Xerox Telecogier 7021 : 1- 2-96 : 19:04 : of F/NAL 3122592071- SARGENT & t.us0Y:82 ! l, l.AKA SW 7 z- % j /= 4,: t..e. % 4-l
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