ML20199B057
| ML20199B057 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 06/04/1997 |
| From: | Huynh Q, Kannan S, Kersey R HOUSTON LIGHTING & POWER CO. |
| To: | |
| Shared Package | |
| ML20199B043 | List:
|
| References | |
| CREE-96-12151-2, CREE-96-12151-27, GL-96-06, GL-96-6, NUDOCS 9711180197 | |
| Download: ML20199B057 (55) | |
Text
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i ATTACIIMENT 2 CONDITION REPORT ENGINEERING EVALUATION NO. 9612151-27 '
9711180197 971111 PDR P ADOCK 05000498 pg
CREll 961215127 Ol'Gl>04.ZA.0002 Rcv. 2 Condition Report Engineering Evaluation Program 7Qr m Form 1 Condition Report Engineerir.g Evaluation Forrn CR lio. 96 12151 Page 1 of 4/\
l OR G NA' _ .ggsnm
- 1. Identify the appropriate CR Category i
O nnrineerins ^eilon B narineerinsitecort O 1:nsir=rins haarec O uncias,itied
- 2. neason for change:
Olinhat'ecinent , O Administrative O Nonconronnance
- 1. NCR Disposition:
O use.A 1 O nerair O newoik O invalidaie O Reject (NFA^ Only)
I
- 1. Change *I)pe: ;
O M Jor mod 0 Non Design Change O Minor mod proccou,e charite O Minor chante ,
O TemporaryMon D r per chance other Action /rasl1Sub Task /No. Owner Dept Description 96Y215127 Q.Iluynh DED Generle letter 96M Enginecting evaluation of the po:ential thermal over pressure in the Ril. St. PS, WL and ED lines
- 5. Disposition / Evaluation:
(See attached)
_ Sam Mannan / t7 tog f/4/o _ lt. P. Kmry / W db4 (-/9/fl inter Discipline Review / Date ' Reslewed by/ Date
- 6. Quoc 1Iuynh /km c;.. h A (,/dy 7. K. D. Ifouse / ,, g/g/r/
Prepared by/ Date ( Supervisor / Date' Page1
CRBl1961215127 :
PO11tNTI AL TilERMAL OVERPRESSURE IN Tile Ril, SI, PS, WL AND ED LINES l 1.0 PURPOSE
, The purpose of this report is to evaluate the effects of thermal ovespressure on the structuralintegrity of the following 10 containment penetration piping sections identified in CREE 96 12151 6 in response to ,
Ocnesle Letter 96 06:
o 8"-Ril 12M KB2: Refueling Cavity Drain Line to RWST Containment Penetratlor M 55 o 8" Ril 1304 KB2: Refueling Cavity Drsin Line to RWST Containment Penetration M 76 o 3/4" St 1321 BB2: SIS Test Line Containment Penetration M 68 o 1" PS 1005.BB2: Pressurizer Vapor Sampling Line Containment Penetration M 85 e 1" PS 1016 BB2: Pressurirer Liquid Sampling Line Containment Penetration M 85 o 1"-PS 1002 BB2: RCS Ilot leg Sampling Line Containment Penetration M 85 o )" PS 1003 UB2: RilR Loop Sampling Line Containment Penetration M 86 c.1" PS 1004 UB2: SI Accumulator Sampling Line Containment Penetration M 29 o 3".WI-1009 RB2: RCDT Discharge Line to LWPS Contalment Penetration M 56 o 2" ED ll24 SB2: Containment Normal Sump Discharge Containment Penetration M 72 4
The concern is that elevated containment temperature following a DBA will heat the fluid trapped between the containment isolation valves and could create pressures high enough to affect containment integrity via bypass leakage.
Nels: A layer of 1" insulation has been installed on Line No. 3" WL 1009 RB2 (RCDT Discharge Line to LWPS Containment Penetration). Refer to CREB 9612151 19 and CR 97 1064 for further details.
2.0
SUMMARY
.OF RESULTS I
1he calculation results indicate tpat the affected piping and pnetrations are capable of withstanding the potential peak pressures and still be within the ASMB Code allowable ilmits for Faulted Conditions.
Therefore, the containment structural integrity is not affected. Engineering determined that the ,
associated piping and penetrations will remain operable in the event of a design basis accident.
3.0 ANALYSES i
3.1 Methodolony Group 1: Containment penetrations with inherent overpressure protection Containment penetration with alhoperated globe valves provide inherent overpressure protection when at least one isolation valve is posliioned so that trapped fluid applies pressure under the valve plug, and the valve spring is designed to allow the valve to open below the maximum allowable pressure of the piping and valves. The following lines meet the Group I criteria: ,
e 3/4"-SI 1321 BB2: SI,S Test Line Containment Penetration
= 1" PS 1005 BB2: Pressurizer Vapor Sampling Line Containment Penetration e 1"-PS 1002 BB2: RCS Ilot leg Sampling Line Containment Penetration
- 1" PS 1003 UB2: RilR leop Sampling Line Containment Penetration
- .1" PS 2004.UB2: St Accumulator Sampling Line Containment Penetration
. 2" ED 1124 SB2: Containment Normal Sump Discharge Line Containmer.t Penetration Page 2
1 I CREE 961215127 l
. i Por this group, the maalmum pressure _ required to unseat the valve plug will be calculated (see Attachment
- A). This pressure or the accident heat up pressure is then compared against the allowable pressure to :
which the piping, valves, and penetrations can conservatively withstand without exceeding ASMS Code !
limits.- !
i fggggjt Containment penetrations which do not have inherent overpressure protection !
Penetrations with gate or globe yalves with trapped fluid pressure above the valve plug do not have l inherent overpressure protection. These lines are identified as follows. ;
I l o 8" Ril 1204' KB2: Refueling Cavity Drain Line to RWST Containment Penetration l e 8" Ril 1304 KH2: Refueling Cavity Drain Line to RWST Containment Penetration o 1" PS 1016 BD2: Pres 6urizer Liquid hmpling Line Containment Penetration !
o - 3" WL-1009 RB2: RCDT Discharge Line to LWPS Contalment Penetration -
For this group, the accident peak pressure due to thermal expansion is calculated by NF&A for each case.
This pressure is then compared against the allowable pressure to which the piping, valves, and penetrations can conservatively withstand without exceeding ASME Code ihnits (see Attachment A). 7 For both groups, pipe stresses were computed (see Attachment B) to demonstrate that ASMB Code allowable stress limits are still met.
3.2 Accentance Criteria To ensure the integrity of the containment pressure boundary, the applicable ASME Code allowable limits !
are followed. UFSAR Tables 3.9-6A and 3.9 *,'A specify the following limits for piping and valves:
3.2.1 Piping Criteria ,
UFSAR Table 3.9 7A refers to Code Case 16061 (N 53) of the ASMB Ill Code (1974 Edition and addenda through Winter 1975), Subsection NC 3611.2 which specifies the following:
- c. For Service Level D prtssure limit, NC-3611.2 states " When Level D Limits apply, the peak pressure :
P. , alone shall not exceed 2.0 times the pmssure P, calculated in accordance with Eq. (4), WC 3641.1." ;
- Eq. (4)is given as follows: P = 2 S(t.= A)/ [D. 2y(t. A))
Where:
P = Calculated maximum allowable internal pressure, psl S = Max. allow, stress (psi)in material caused by internal press. at design temp.
- t. = minimum required wall thickness (in.) _
D.= Pipe outside diameter (in.) _
y = 0.4, except that for pipe with a D./ t ratio less than 6, y = d / (d + D.) :
A = Additional thickness to compensate for threading, corrosion, etc.
Therefore, the maximum allowable intemal pressure at Faulted Condition (Level D) is: P 5: 2P l 3 i
- Pasc 3 , 7 n - - .
l CREE 961215127 i
- h. F;r stress limits. NC-3611.2 states " The sum of stresses due to internal pressure, live and decd load, )
and those due to occasional loads... shall not exceed 2.4 times the allowable stress, Sn . This requirement is satisfied by meeting Eq. (9), NC 3652.2, using a stress limit of 2.4 S."
Eq. (9)is given as follows: P,o, D./ 4 t. + 0,75 I(M4 + Me / Z) s 2.4 S.
Where:
P ,= peak pressure, psi M4 = Resultant moment loading on cross section due to weight and other sustained loads,in. lb ,
l Mn = Resukant moment loading on cross section due to occasional loads,in.-lb Z = Section modulus of pire,in.'
S.= Material allowable stress at design temperature, psi i = Stress intensification factor in = nominal pipe wall thickness,in.
3.2.2 Valve Crlieria ,
- n. For pressure limit for the faulted condition, UFSAR Table 3.9 6A specifies P,.. s 1.5 P If the pressure limits are met, thd stress limits below are considered to be satisfied.
I
- b. For stress limits, UFSAR Table 3.9 6A specifies the following fauhed limits:
o,. s 2.0 S (o,. or or .) + on s 2.4 S Wherc:
o,. = General membrane' stress o n= local membrane stress
- o. = Bending stress S = Allowable stress value in accordance with ASMBill Code I .
3.3 Assumnilons i
- 1. No pressure relicf due to valve leakage is assumed in this evaluation,
- 2. Review of the valve drawings (Ref. 3,15,34 & 38) reveals that trapped water is isolated to one side of the valve, between the valve nortle and valve disc. This portion of the valve body geometry is similar to a pipe (i.e. cylindrical shape). Thdrefore, to simplify the computation, Equation 4 in Section 3.2.1 above is assumed to le also applicable for valves when calculating the maximum allowable pressure (P).
- 3. For pipe thickness (t.), no manufacturing tolerances are considered. The norminal pipe thickness combined with the lowest allowable stmss (S) taken from the Appendix I of 1974 ASME Ill Code are used in calculating the maximum allowable pil e pressure. Review of the Certified Material Test Reports (CMTRs) for the Ril lines reveals that the lowest yield strength value of the installed pipe is approximately 35% higher than the minimum yield strength value required by t' e ASME Code. Therefore, any variations in the actual pipe thickness due to manufacturing tolerances will be offset by the favorable mechanical material properties of the installed pipe if the higher stren values from CMTRs were used.
Page 4
CREE 961315127
- 4. The corrosion allowance (A) tis assumed to be reto since the installed piping materials are of corrosion resistant type (austenitic stainless steel) and compatible with the system Duld. All pipejoints are welded and no threaded joints are installed on the pressure side of the piping (Ref.13),
- 5. Since the affected piping penetrations are located on elevation 30'of the Radioactive Pipe Chase Room of the Reactor Containment Building where there are significant numbers of hot pipe such as CVCS letdown lines located in the sante room, the initial Duid temperature in some piping penetrations such as Ril and WI, piping is assumed to be as high as 75 'F, This is based on the normal room temperature of ;
the Radioactive Pipe Chase before the LOCA. The room temperature was calculated based on a conservative air entering temperature of 66 'F plus a temperature rise of 9 'F. The temperature rise was conservatively calculated based on only 50% of piping heat load of 23,611 blu (Ref. Cale.# MC 5763, Rev. 2) and a supply air flow rate of 1,250 scfm (Ref. P&lD# SV149V00016#1/#2, Rey,10/Rev.10) as follows: AT = 23,611 blu / (2 X 1.08 X 1,250 scfm) = 8.75 'F, use AT = 9'F.
- 6. The Rif line is used to drain water in the Reactor Cavity back to the Refueling Water Storage Tank after each refueling outage. Upon completing the draining evolution, the in board containment isolation valve is manually closed before the out board valve, thus the pressure in the penetration during full power operation is equal to the static head difference between the RWST and the penetration. The static head is calculated to be approximately 6 psig. Conservatively, the initial fluid pressure in the Ril piping is therefore assumed to be 20 psig. No valve seat leakage 1.nto the penetration is assumed because the containment isolation valves are gate valve type. This is conservative because any seat leakage into the penetration will be leaked out through the same valve.
3.4 Calculatinn Result < Summary The table below summarizes the calculated peak pressures vs. the allowable pressures to which the piping, valves, and penetrations could b andled without exceeding ASMB Code limits. See Attachments A and B for detailed calculations, 1,Inc ID Calculated Peak Pressure, psig ASMit Allowable Pressure, psig Group 1 3/4"-SI 13'e1-BB2 11,714 13,614 1"-PS 1005 BB2 12,352 12,534 l 1" PS 1002 BB2 12,352 12,534 1" PS 1003 UB2 i 6,034 6,911 I" PS 10N Ull2 6,437 6,911 2" ED.I124 SB2 437 3,225 I
i Group 2 .
8" Ril 12N KB2 2,11l' 2,416 .
8" RI11304 KB2 2,092* 2,416 1"-PS 1015-BB2 6,935' 12,534 3" Wi 1009 RB2 2.690* 3,359
- Pressures calculated by NF& A (Ref. 41)
Page 5
CREE 961215127 A brief summary of the results from Attachments A and D is provided below:
o The internal pressures in the Rll, PS and WL piping penetrations (Group 2) followirig a DBA are within the ASME Code allowable limits. ,
o All air operated valves (AOVs) on the SI, pS and ED piping penetrations (Group 1) are capable of unscating themself within the ASME Code allowabic pressures, thereby fulfilling the over pressure relief function if required. In addition, based on the peak pressure calculated by NF&A for a similar i size penetration (Line No.1" PS 1016-BB2, Ref. 41), the internal pressures of some 1" piping penetrations following a DBh are still within the ASME Code allowab!c limits and the pressure may never reach the maximum prpssure required to unscat the valve plug. Therefore, the function of the AOV to act as a relief valve may not be requhed and the ASME Code allowable pressure limits are still met. Engineering actions are being formulated (see below) to support this conclusion.
4.0 CONCLUSION
l
- Ihe calculation results indicate that the affected piping and penetrations were found to be capable of withstanding the potential peak pressures and still be within the ASME Code allowable limits for Paulted Conditions. Therefore, the containment structural integrity is not affected. Engineering determined that the associated piping and penetrations will remain operable in the event of a design basis accident.
I '
5.0 ACTIONS I .
o To determine the number of air operated valves (AOVs) to be credited for containment penetration ;
over pressuse relief, further calculations will be performed to confirm that the heat up pressu es l following a DBA will not execed the maximum pressures required to unseat the valve plug of the Group 1 AOVs or ,
o For the AOVs where benchdet pressures are to be credited for containment penetration over pressure protection, issue a DCP against the Scaling Sheets of the affected AOVs to maintain configuration control of the bench set pressures.
These actions are tracked under CAP Action No. 9f>l215135.
6.0 REFERENCES
- 1. UPSAR Tables 3.9 6A and 3.9 7A, Stress Criteria for ASME 111 Code Class 2 and 3
- 2. p&lD Nos. SR169P20000#1/#2, Rev.19/ Rey,18. Residual lleat Removal System
- 3. Drawing 0220(!)-00097 AWN and 0220(2) 00098 AWN, Valve Nos. RI10063B&C/0064B&C
- 4. Drawing 4036/8036 01073 EEG, Penetration Nos. M 55 and M 76
- 5. Isometric Nos. 2M369PRil259 Sht. 2, Rev 4 and 2C369PRil459 Sht. 2, Rev. 9 and Sht. 5, Rev. 7
- 6. ASME 1111974 Edition, Appendix 1, Table I 7.0, Allowable Stress Value, S, for Class 2 Components
- 7. Code Data Package for Penetration N65. M 55 and M 76 Page 6
i CRl!U 96121a127
- 8. Vendor Data Package for Valve Nos. RH-0063D&C/0064B&C
- 9. P&lD Nos. $N129P05016#1/#2, Rev.11/ Rev.12, Safety injection System
- 10. Drawing 0220(1)-00119 DWN and 0220(2)-00120 DWN, Valve Nos. FV 3970/3971
- 11. Drawing 4036/8036-01085 ElIG.. Penetration Nos. M 29, M.68 and M 80
- 12. Irometric Nos. SM369PS1272 Sht. A01, Rev. 6, and SC361/2PS1472 Sht. A05, Rev.1/Rev. 2
- 13. SpeclGeation for Criteria for Piping Design, SL019PS004, Rev.19
- 14. Vendor Data Package for P6netration Nos. M 29,M-68 and M 80
- 15. Drawing 4032/8032-01076-CKT for Valve Nos. PS 0004,-0008,-0011,and 0015
- 16. P&lD Nos. 5Z329200045#1/#2, Rev.17/Rev.18, Primary Sampling System
- 17. P&lD Nos. SZ549Z4750l#1/#2, Rev. 9/Rev. 9, Post Accident Sampling System
- 18. Isometric 2C369PPS485 Sht. A01,Rev 8, SM369PPS285 Sht. A01, Rev. 4 5M369 PAP 287 Sht. A01, Rev. 6
- 19. Drawing 4036/8036-00101-CEO, Penetration Nos. M 85 and M 86
- 20. Drawing 4407/8407 00019 , DRZ, Valve Nos. FV-4450,4451,4454,4455, and 2455
- 21. Assembly Drawing 4407/8407-00009 ARZ, Valve Nos. FV-4450,4451,4454,4455, and 2455
- 22. Vendor Data Package for Vdive Nos FV-4450,4451,4454,4455, and 2455 1
- 23. Drawing 4407/8407-00018 URZ, Valse Nos. PV-2453,2454,4823, and 4824
- 24. Assembly Drawing 4407/8407 00013 ARZ, Valve Nos. FV 2453,2454,4823, and 4824
- 25. Vendor Data Package Valve,Nos. FV 2453,2454,4823, and 4824 26, Drawing 4026-01145 CWV, Valve No. FV-4461
- 27. Vendor Data Package for Valve No. FV 4461 I .
- 28. Drawing 4026-01147 DWV, Valve Nn. FV 4466
- 29. Vendor Data Package Valve No. FV-4466
- 30. Drawing 4409-00177 CVT, Valve No FV-4451B i
- 31. Vendor Data Package for Valve No. FV-4451B Page 7
4 CREB 96,1215127
- 32. Drawing 402641146 DWV! Valve No. FV-4452 and -4456 ;
I :
- 33. Vendor Data Package for Valve No. FV 4452 and -4456 '
- 34. Drawing 4032/8032-00016-CKT, Valve No. PS 0001 l
- 35. Vendor Data Package for V,alve No. PS 0001
- 36. P&lD Nos. 5Q069P0$030#1/#2, Rev.14/Rev.13. Radioactive Vent and Drain System
- 37. !$ometric. SC369PilD426 Sht. 5. Rev. 5 5M309 PED 226 Sht. A29. Rev. 2 ,
SM361 PED 226 qht. 32, Rev. 0 >
- 39. Drawing No. 4026/8026 Oll44 FWV, Valve No. FV-7800 ,
i
' 40. Drawing Nos. 6373-00023 DNY and 6373 00024 ENY, Valve No. ED 0056
- 41. Pipe IIcat up/ Pressurization Analysis Results, CC: Mail from J.M.Wigginton dated 4/29/97 (attached) l
- 42. Drawing 4050/8050-01001 ETO for Valve Nos. FV-4450A,-4451 A,-4454A, and -4455A
- 43. Assembly Dwg No. 4050/805040007 Cr0 for Valve Nos. FV 4450A.-4451 A,-4454 A, and 4455A -4
- 44. Vendor Data Package for Valve Nos. FV-4450A.-4451 A.-4454A, and -4455A
- 45. WKM Engineering Standard 4026/8026-01128 AWN
- 46. - Drawing 4036/8036-01065 BBO for Penetration No, M-72 ;
- 47. Drawing 4038 01135 AAD/8038-01109 AAD for Valve No. MOV-0312
- 48. Drawing 4026-Oll43 DWV for Valve No FV-4913
- 49. Drawing 4036/8036-01078 DEO for Penetration No. M 56
- 50. P&lD Nos. SR309P05022#1/#2, Rev.15/Rev.16. Liquid Waste Processing System
- 51. Isometric SM369PWL277 Sht. 4, Rev. 5 and SC369PWIA77 Sht.1, Rev. 5 l
i 1
~h
--.--------,.----,------.--_.----a_
CREE 961215127 I
J l
I A'ITACIIMENT A !
PIPING PRESSURE CAI,CUI,ATION l
l 4
h .
1 I
e Page 9
CRill! 96,1315127 CA1,CUI,ATION SilEl?TS
- 1. SLLhld14" ShDlldlD2; Material Data Table i D1L'Ihk t,in. ASMILMaterin! I Allanth.Siten licIctences
, St, psi at 300*F Pipe 3/4" Sch.160s 0.219 S A312 TP3NI. 15,300 13,6 Penetration M68 (l") 0.250 SA376 TP316 18,400 11,6 Valves FV.3970 & 3971 0.219 SA182 F316 18,400 10.6 i
- a. Calculate the maximum press'ure required to unseat the valve plug This line evnsists of two 3/4" AMBTEK air operated globe valves which at least one valve is positioned so that trapped fluid applies pressure under the valve plug, and the valve spring is designed to allow the valve to open below the maximum allowable pressure of the piping and valves.
Valvo Plug cross section area A,= 3.1416 (.672)' /4 = 0.35 in'. (Ref.10)
Diaphragm arca: Ao = 100in'. (Ref.10)
Airset picssure range to unseat the plug: Po = 33 to 41 psig (Ref.10) use Po = 41 psig (Note: actual altset value is 33 psis, Ref. Scaling Sheets A1(2)SI PV 3971)
Maximum fluid pressure required to unseat the valve plug: P, = (4!)(100)/0.35= 11,714 psig
- b. Calculate the Code maximum allowable prenure for 3/4" pipe and valve P = 2 S(t,,, . A)/ [D. 2y(t,,, A))
Where:
S = 15,300 psi t ,,, = 0.219" D. = 1.05" for pipe. Same value is assumed for valve, y = 0.612/(l .05+0.612) = 0.,37 Therefore, P= 2 (15,300)(0.219)/[1.05 2(0.37)(0.219)] = 7,547 psig for pipe P= 2 (18,400)(0.219)/11.05 2(0.37)(0.219)) = 9,076 psig for valves For piping at Faulted condition: P,. # 2 P = 2(7,547) = 15,094 psig For valves at Faulted condition: F .. = 1.5 P = 1.5(9,076) = 13,614 psig
- c. Calculate the Codo maximum allowable pressure for 1" penetration S = 18,400 psi i t ,,, = 0.25" D. =1.315" y = 0.815/(1.3154 0,815) = 0.38 P= 2 (l8,400)(0.25)/l1.315 - 2(0.38)(0.25)) = 8,178 psig For penetration at Faulted condition: P. = 2 P = 2(8.178) = 16,356 psig Page 10 B
CRUH 961215127 ,
conclusion: Since the Code allowable pressure (13,614 psig)is higher than the maximum pressure required to unscat the valve (11,714 pdg), the existing piping and penetration deelgn is acceptable,
, 2. PS 11ne 1" PS 100$311 i Material Data Table WalLThk, t,in. ASMEMatedal Allowable stress. References . Sg, psi _at 150*F Pipe 1" Sch.160s 0.250 SA312 TP3041, 15,700 13,6 I Penetration M85 O.250 SA312 TP316L 15,700 19,6 i Valve FV-4450 0.750 SA479 F316L 15,700 22,6 Valve FV-4450A , 0.428 SA182 F316L 15,700 44,6 Valve FV 4452 O.250 SA182 F316 18.800 33,6 < Valve PS 0015 1 0.250 SA182 F316 18,800 15,6
- a. Cniculate the maximt.m pressure required to unseat the valve plug This line consists of a 1" WKM air operated globe valve FV-4452 which is positioned so that trapped fluid applies pressure under the valve plug, and the valve spring is designed to allow the valve to open below the maximum allowable pressure of the piping and valves.
Valve plug unbalanced cross r.cction area A, = 0.306 in' (Ref. 45) Diaphragm area: A4 = 140 in'. (Ref. 45) Airset pressure range to unseat the plug: Po = 24 to 30 psig (Ref. 45) . Use Pu = 27 p>lg (Note: actual altset value is 24 psig. Ref. Scaling Sleects Cl(2)PS FV-4452) i Maximum fluid pressure required to unscat the valve plug: P, = (27)(140)/0.306 = 12,352 psik
- b. Calculate the Code maximum allowable pressure for pipe, penetration and valves P = 2 S(1. . A)/ [D. 2{(t. . A)]
Where: S = 15,700 psi
- t. = 0.250" D. = 1.315" for pipe and penetration. Same value is assumed for valves y = 0.815/(0.815+1.315) = 0.38 Therefore, P= 2 (l5,700)(0.250)/[1.315 - 2(0.38)(0.250)] = 6,978 psig for pipe and penetration P= 2 (18,800)(0.250)/[1.315 2(0,38)(0.250)) = 8,356 psig for valves For piping and penetration at Faulted condition: P.,. = 2 L = 2(6,978) = 13,956 psig For valves at Fauhed condition: P. = 1.5 P = 1.5(8,356) = 12,534 psig l
Pagei1
CRErl961215127
Conclusion:
Since the Code allowable pressure (12,534 psig)is higher than the maximum pressure required to unscat the valve (1,2,352 psig), the existing piping and penetration design is acceptable. Ilated on the results of the existing heat up pressure analysis for a slmliar line at the same penetrallon (l".PS.1016 Illl2, Sch,160 (Ref,41), the heat.up pressure resulting from a deAlgn basis accident for lhls line is estimated Io be approximately 6,935 psig, Therefore, there is significant margin h a the Code allowable limits and the reller capability of the AOV may not be necessary. Further heat.up pressure calculation is required to contirm the conclusion,
- 3. j'Sibe P'.PS 1002_ BB2:
Malertal Data Table Wall Thk. t, In. ASMB Material Allowabhj.itca Refetclicss S&, psl at 150 *F Pipe 1" Sch.160s 0.250 SA312 TP304L 15,700 13,6 Penettation M85 0.250 SA312 TP316L 15,700 19,6 Va!,'c FV 4454 0.750 SA479 F316L 15,700 22,6 Valve FV-4455 0.750 SA479 F316L 15,700 22,6 Valve FV 4454 A 0.428 SA182 F316L 15,700 44,6 Valve FV-4455A 0.428 SA182 F316L 15,700 44,6 Valve PS 0011 0.250 SA182 F316 18,800 15,6 Valve FV-4456 ,, _ O'.312 SA182 F316 18,800 33,6 Vnive FV 2455 0.750 5A479 F316L 15,700 22,6
- a. Calculate the maximum pressure required to unseat the valve plug This line consists of a 1" WKM air operated globe valve FV-4456 which is positioned so that trapped Guld applies pressure under the valve plug, and the valve spring is designed to allow the valve to open below the mulmum allowable pressure of the piping and valves.
Valve plug unbalanced cross section area A, = 0.306 in' (Ref. 45) Diaphragm area: A4 = 140 in',(Ref. 45) Airset pressure range to unseat the plug: Po = 24 to 30 psig (Ref. 45) Use Po = 27 psig (Note: actual (irset value is 24 psig, Ref Scaling Sheets Bl(2)PS FV-4456) Maximum fluid pressure requirep to unseat the valve plug: P, = (27)(140)/0.306 = 12,352 psig
- b. Calculate the Code maximum allowable preuure for pipe, penetration and valves ,
P = 2 S(t. A)/ [D. 2y(t. A)) Where: i S = 15,700 psi
)
- t. = 0.250" l D. = 1.315" for pipe and penetration. Same value is assumed for valves y = 0.815/(0.815+1.315) = 0.38 i Therefore. -
P= 2 (15.700)(0.250)/[1.315 - 2(0.38)(0.250)) = 6,978 psig for pipe and penetration l P= 2 (l8,800X0.250)/[1.315 2(0.38)(0.250)) = 8,356 psig for valves Page 12 !
1 CREE 961215127 For piping and penetration at Fouhed condition: P,,, o 2 P o 3(6.978) = 13,956 psig l For valves at Faulted condition: P _ = 1.5 P = 1.5(8,356) = 12,534 psig I famthulent Since the Code al'lowable pressure (12,534 psig)is higher than the maximum pressure j required to unscat the vah e (12,352 psig), the existing piping and penetration design is acceptable. Based on the results of the exijting heat.up pressure analysis for a similar line at the same j peneiration (l".PS.1016.lill2, Sch.160 (Ref. 41), the heat.up pressure resulting from a design basis i' accident for this line is estimated to be approximately 6,935 psig. Therefore, there is signincant margin from the Code allowable limits and the rellercapability of the AOV may not be necessary. . Further heat.up pressure calculation is required to confirm the conclusion.
- 4. PS__Line 1" PS 1003 UH2:
Material Data Table ; Wall Thk. t, in. ASMB Material Allowable Stress. Rcicances St psi at 150'F , l . Pipe 1" Sch. 40s i 0.133 SA312 TP304L 15,700 13,6 Penetration M86 0.250 SA312 TP316L 15,700 19,6 Valve FV-4823 0.220 S AIR 2 F316L 15,700 25,6 Valve FV.4461 0.250 SA182 F316 18,800 27,6 Valve PS 0008 0.250 SA182 F316 18,800 15,6 Valvc FV.2454 O.220 SA182 F316L 15,700 25,6
- a. Calculate the maximum pressure required to unseat the valve This line consists of a 1" WKM air-operated globe valve 1%4461 which is positioned so that trapped fluid applies pressure under the valve plug, and the valve spring is designed to allow the valve to open below the ,
maximum allowable pressure of the piping and valves. Valve plug unbalanced cross section area A, n 0.087 in'. (Ref. 45) Diaphragm area: A4 = 35 in'. (Ref. 45) Airset pressure range to unscat the plug: Pu = 10 to 34 psig (Ref. 45) Use Po = 15 psig (Note: actual altset value is 10 psig, Ref. Scaling Sheets Cl(2)PS FV-4461) Maximum fluid pressure required to unseat the valve plug: P, = (15)(35)/0.087 = 6,034 psig
- b. Calculate the Code maximum allowable pressure for pipe, penetration and valves F = 2 S(t. A)/ [D. 2y(t. A))
Where: S = 15,700 psi t ,, = 0.133" . D. = 1.315" for pipe and penetration. Same value is assumed for valves y =0.4 _A =0 Therefore, Page 13
CREB 961215127 P9 2(15,700X0.133)/l1.315 2(0.4)(0.133)) = 3,455 psig for pipe and penetration P.* 2 (15,700X0.220)/l1.315 2(0.4)(0.220)) = 6,065 psig for valves
. For piping and penetration at Faulted condition: P = 2 P =2(3,455) = 6,911 psig For valves at Pauhed condition: P = 1.5 P =1.5(6,065) = 9,097 psig Conclusion; Since the Code allowable pressure (6,911 psig)is higher than the maximum pressure required to unseat the valve (6,034 psig), the existing piping and penetration design is acceptable.
- 5. PS11ne 1".PS 1004 UB2:
Material Data Table Wall Thk. t, in. ASME Material Allowable Stress, Referenocs Si, psl at 150 'F Pipe 1" Sch. 40s 0.133 SA312 TP304L 15,700 13,6 Penetration M29 - 0.250 SA376 TP316 18,800 11,6 Valve FV 4824 0.220 SA182 F316L 15,700 25.6 Valve FV 4466 0.250 SA182 F316 18,800 29,6 Valve PS-0001 0.250 SA182 F316 18.800 34.6
- a. Calculate the maximum presspre required to unscat the valve plug This line consists of a 1" WKM alt-operated globe valve FV-4466 which is positioned so that trapped fluid epplies pressure under the valvo plug, and tie valve spring is designed to allow the valve to open below the maximum allowable pressum of die piping and valves, i
Valvo plug unbalanced cross section area A,= 0.087 in'. (Ref. 45) Diaphragm area: A4 = 35 in'. (Ref. 45) ' Altset pressure range to unscat the plug Po = 16 to 40 psig (Ref. 45) Use Po = 16 psig (Note: actual airset value is 16 psig, Ref. Scaling Sheets Bl(2)PS FV-4466) Maximum fluid pressure require 4 to unscat the valve plug: P, = (16)(35)/0.087 = 6,437 psig
- b. Calculate the Code maximum allowable pressure for pipe, penetration and valves P = 2 S(t. A)/ [D. 2y(t. A)]
Where: I - S = 15,700 psi i
- t. = 0.133.
D. = 1.315" for pipe and penetration. Same value is assumed for valves y = 0.4-A' =0. 1 Tlierefore, P= 2(15,700)(0.133)/[1.315 2(0.4)(0.133)) = 3,455 psig for pipe and penetration P= 2 (15,700)(0.220)/11.315 - 2(0.4)(0.220)) = 6.065 psig for valves Page 14
+ .. . - - ... . -
- -.- - - - x
I
, CREB 951215127 For piping and penetration at Faulted condition: p,,. = 2 P = 2(3,455) = 6,911 psig .
For valves at Paulted condition: P. = 1.5 P = 1.5(6,065) = 9,097 psig Conclude Since the Code allowable pressure (6,911 psig)is higher than the maximum pressure rer;uired to unseat the valve (6,437 psig), the existing piping and penetration design is acceptable.
- 6. ED Line 2"_-ED 1124 SB2_:
I ' Material Data Table i Wall Thk..t. in. ASMEMaletig) AllowableSitest Refmners S ,, psi at 150*F Pipe 2" Sch.40s i 0.154 SA312 TP304L 15,700 13,6 Penetration M72 ' O.154 SA312 TP304 18,300 46,6 Pipo 3" Sch. 40s 0.216 SA312 TP304L 15,700 13,6 Valve MOV 0064 (3") 0.218 SA351 CF8 16,450 38,6 0.281 SA351 CF8M 17,000 39,6 lalve FV 7800 (3") Valve ED 0056 (l") 0.190 SA351 CF8M 17,000 40,6 Volvo FV-2453 (l) , 0.220 SA182 F316L 15,700 25,6
- a. Calculate the maximum pressure required to unscat the valve plug This line consists of a 3" WKM air operated globe valve FV 7800 which is positioned so that trapped fluid cpplies pressure under the valve plug, and the valve spring is designed to allow the valve to open below the rnaximum allowable pressure of the piping and valves.
Valve plug unbalanced cross section area A,= 9.3 in' (Ref. 45) Diaphragm area: Ao = 140 in'. (Ref. 45) Altset pressure range to unseat the plug: Po = 11 to 29 psig (Ref. 45) Use Pn = 29 psig (Note: actual airset pressure is 13.22 psig, Ref. Scaling Sheets A1(2)ED FV 7800) Maximum Duld pressure required to unseat the valve plug: P, = (29)(140y9.3 = 437 psig
- b. Calculate the Code maximum allowable pressure for 2" pipe and penetration P = 2 S(t., - Ay [D. 2y(t. A))
Where: S = 15,700 psi t ,,, = 0.154- D. . = 2 375"
- y. = / t.4
'lherefore, P= 2 (15,700)(0.154y[2.375 - 2(0.4)(0.154)] = 2,147 psig For piping and penetration at Faulted condition: P = 2 P = 2(2,147) = 4,294 psig l
Page 15 o _
CREB 961215127
- c. Calculate the Code maximum allowable pressure for 3" pipe and valves S = 15,700 psi t,. = 0.216" D. = 3.50" y = 0.4 -
P= 2 (l5,700)(0.216)/l3.5 2(0.4)(0.216)) = 2,038 psig for pipe P= 2 (16,400)(0.218)/(3.5 2(0.4)(0.218)) = 2,150 psig for valve For valves at Faulted condition: P,,. n 1.5 F = 1.5(2,150) = 3,225 psig
Conclusion:
Since the Code allowable pressure (3,225 psig)is higher than the maximum pressure required to unseat the valve (437 psig), the existing piping and penetration dealgn is acceptable, i 7, Elllines 8" Rll 1204 KB2 and 8" RlhD04 KB2: l Material Data Table MitThlit,in. AShifGiateth! Allowable Strest, Eckreacts Sh , psi at 150 *F Pipe, 8" sch. 40S .322 SA312 TP304L 15,700 13,6 Penetration M55 and M76 .322 S A312 Ti'304 18,300 7,6 Valves Ril063D/R110MB .460 SA182 F316 18,800 3,6 Valves R11063C/R11054C .460 SA182 F116 18,800 3,6
- a. Peak pressure due to thermal expansion: 2,111 psig (Ref. 41)
I .
- b. Cabulate the Code maximun) allowable pressure for pipe, penetration and valves P = 2 S(t. A)/lD. 2y(t= A)]
Where: S = 15,700 psi
- t. = 0.322" i D. = 8.625" for pipe'and penetration. Same value is assumed for valves, y =0.4
-A = 0 (Sec note below)
Therefore, P= - 2 (15,700)(0.322)/{8.625 2(0.4)(0.322)) = 1,208 psig for piping P= 2 (18,300)(0.322)/[8.625 - 2(0.4)(0.322)] = 1,408 psig for penetration P= 2 (l 8,800)(0.460)/[8.625 - 2(0.4)(0.460)) = 2,095 psig for valves For piping at Faulted condition: P., = 2 P = 2(1,208) = 2,416 psig. For penetration at Faulted condition: P = 2 P = 2(1,408) = 2,816 psig. For valves at Paulte<l condition: P.. = 1.5 P = 1.5(2,095) = 3,142 psig Page 16
CREB 961215127 Conclosinnt Since the Ccde allomble pressure (2,416 psig)is higher than the peak pr:ssure d:e to thermal expansion (2,111 psig), the existing piping and penetration design is acceptable. l t
- 8. PS Line_1" PSdDM 11112; Material Data Table ,
; ,WallIldat, In. ASM11MatcIlal Allowable stress, }{ctu m s S ,, psi _at 150'F Y'ipe 1" Sch.160s 0.250 SA312 TP3MI, 15,700 13,6 >
Penetration hiS5 0.250 S A312 TP3161, 15,700 19,6 r Valve FV 4451 0.750 SA479 F3161, 15,700 22,6 Valve FV-4451 A 0.428 SA182 F316L 15,700 44,6 Valve FV-4451D 0.350 SA351 CF3M 17,000 31,6 Valve PS 0004 0.250 SA182 F316 18,800 15,6
- a. Peak pressure due to thermal expansion: 6,935 psig (Ref. 41)
- b. Calculate the Code maximum allowable pressure for pipe, penetration and valves P = 2 S(1,, . A)/ [D. 2y(t. . A))
Where: S = 15,700 psi t ,,, = 0.250" D. = 1.315" for pipe and penetration. Same value is assumed for valves y = 0.815/(0.815+1.315) = 0.38 A =0 - Therefore. P= 2 (l5,700)(0.250)/[1.315 2(0.38)(0.R)] = 6,978 psig for pipe and pcnelration , P= 2 (l8,800)(0.250)/[1.315 2(0.38)(0.250)) = 8,356 psig for valves For piping and penetration at Paulted condition: P., . = 2 P = 2(6,978) = 13,956 psig For valves at Fauhe<l condition: P., = 1.5 P = 1.5(8,356) = 12,534 psig Conclusiont Since the Code allowable pressure (12,534 psig)is higher than the peak pressure due to thermal expansion (6,935 psig), the existing piping and penetration design is acceptable. l I 'T I Page 17 s
CRBE 96,1215127 . l
- 9. .WL Line.3"-WL 1009.P.112; Material Data Table
. Wall Thk. t, in. ASMBMatc11a] AllowabicJ1tsst Referenets S , psi _at 150'F _ Pipe 3" Seh. 40s _ 0.216 S A312 TP316L 15,700 13,6 Penetration M56 0.216 SA312 TP316 18,800 49,6 _ Valve MOV 0312 1 0.219 SA351 CF8M _ 17,000 47,6 Valve FV 4913 i 0.281 SA351 CF8M 17,000 _ 48,6 Valve Wi 0636 (l") 0.250 SA182 F316 18,800 15,6 r
- a. Peak pressure due to thermal expansion: 2,690 psig (Ref. 41)
- h. Calculate the Code maximung allowable pressure for 3" olpe, penetration and valves P = 2 S(t.,, . A)/ [D, . 2y(t,,, . A)) ,
S = 15,700 psi
- t. = 0.216" t .
D. = 3.50" i y = 0.4 P= 2 (l5,700)(0.216)/[3.5 - 2(0.4)(0.216)] = 2,038 psig for pipe and penetration P= 2 (17,000)(0.219)/[3.5 - 2(0.4)(0.219)] = 2,239 psig for valves i For piping and penetration at Faulted condition: P. = 2 P e 2(2,038) = 4,077 psig For valves at Faulted condition: P. = 1.5 P = 1.5(2,239) = 3,359 psig Concluslom Since the Code allowable pressure (3,359 psig)ls higher than the peak pressure due to thermal expansion (2,690 psig), the existing pi;> lng and penetration design is acceptable, Page 18
& I
CitEE 961215127 , ATTACIIMENT 11 l'11'15 STRICSS CALCULATION l l l I I e i Page 19
I cr/E d&c12M14,7 STPM1 W*4) calc so. Rc0GB0 sH1 or COUTH TEXAS PROJECT REV. PREPARER /DATE REVEWER/DATE ELECTRIC GENERATING STATION HOUSTON LIGHTING 8, POWER , _
, kdutA Bl3f YCt S' GENERAL COMPUTATION SHEET CUSJLCT ""8"**"' UNIT /s t&2 While responding to G,onoric Lollor (GL) 96-0G, it was found that penetration MGB on lino 3/4" SI 1321 DB2 will experienco a fauttod prossuro of 11,714 psi following a DBA. Thoroforo, faulted stressos nood to be 'roovaluated and compared against the ASME Section 111 Codo allowables.The portion of piping, insido containment, from valve FV3970 to penetration MGB is analyzod in cale RCOG80 ( Data Points 205 through 245). Tho portion outsido containment is part of calculation RC1315 and tho impact duo to ponotration ovorprossurization for thic portion is ovaluated soparately. ,
i The following is the ovaluation for portion insido containment for ponotration M68. EVALUATION Faultod peak pressure por GL 96-06, P = 11,714 psi Outsido dia of pipo, Do = 1.05" Wall thicknoss, t = 0.219" Longitudinal Prossuto stress, S, = P,noDo/4 t
= 14,041 psi Conservatively using maximum Eqn 9D stressos from the dos 10n stross calc, part C shoot 104 at DP200, for the SSE inortia stress =10,614 psi (conservativo, sinco this already includet original pressure stress)
Total Eqn 9D stress =14,041 + 10,614 = 24,655 psl Allowable max stress for Eqn 9D = 2.4 S. = 36,720 psi ( Basod on Sn 15300 psi at 300' F ) Note: Por Design Stress calc Unit 1 stressos onvelop Unit 2 stressos. REFERENCE .
- 1. CREE 9612151-27 for poak pressure
- 2. Dosignstress calc RCOG80 Revision 3
- 3. ASME Soction ill Subsection NA,1974 Edition CONCLUSION Faulted, Lovel D strossos aro within the ASME Sootion lli Class 2 allowables Qe.w ,
6 40 t1Mi,Rr_
$1P361(DM 1) CALC 2 RC1315 SHT or SOUTH TEXAS PROJECT REV. PREPARERCATE REVNMERCATE ELECTRIC GENERATING STATION !
HOUSTON LIGHTING & POWER _ / _ , diauw bh,)u NA l-3
- Q GENERAL COMPUTATION SHEET ,
sVBJt.CT *"""a****" Unlit 6 142 i While responding to Generic Letter (GL) 96 06, it was found that penetration M6B on line
- 3/4" SI 1321 BB2 will experienco a faulted pressuro of 11,714 psiiollowing a DBA.Tho 4 elevated contalnment temperature following a DBA will heat up the trapped fluid between ;
the isloation valves and cause this high pressure. Therefore, faulted stresses need to be reevaluated and compared against the ASME Section lll Code allowables. The portion of piping from valve FV3971 to penetration M68 is analyzed in calc RC1315 ( Data Points 100 through 165). The portion inside containment is part of calculation RC0680 and the impact due to penetration overpressurization for this portion is evaluated separately. The fo' lowing is the ovaluation for portion Insido containment for penetration M68. EVALUATION 1 Faulted peak pressure per GL 96-06,19,6 #11,714 pst Outside dia of pipe, Do a 1.05" < Wall thickness, t = 0.219" Longitudinal Pressure stress, Si, - 1%.6 Do/4 t
, = 14,041 psi Conservatively using maximum Eqn 90 stresses from the design stress calc, page 13 at DP155, for the inert'a stress 17815 psi (conservative, since this already includes original pressure stress)
Total Eqn 9D stress = 14,041417,815 = 31,856 psi Allowable max stress for Eqn 90 = 2.4 Sn = 36,720 psi . ( Based on Sn 15300 psi at 300 *F ) Note: Per Design Stress calc Unit 1& 2 analyses are common due to similarity of piping ' configuration. REFERENCES i
- 1. CREE 96-1215127 for peak pressure
- 2. Design stress calculation RC 1315 Revision 3
- 3. ASME Section lli Subsection NA,1974 Edition CONCLUSION -
Fau!!od Lovel D stresses are still within the ASME Section 111 Class 2 allowables. (A q& . .L t .
&dL <%' 12l51.d*2_
$1PMI (op4) cucen nc7402 sen er EOUTH TEXAS PROJECT nrv, enceAntR/DAtt ntvecwcfUDATC ELECTRIC GENERATING STATION HouGTON LIGHTING & POWER / n, GENERAL COMPUTATION SHEET f,UBJC CT '""*****" uNtits 187 Whilo responding to Generic Lottor (GL) 90 00, it was found that ponotratinn M85 on lino 1" PS 1005 BB2 will experienco a faulted pressure of 12,352 psl following a DDA.
Thorofore, faulted stressos need to be reovaluated and compared against the ASME Section 111 Code allowables. The portion of piping, insido containment, from valvo FV4450A to penetration M85 and valve PS015 to lino 1" PS 1005 BD2 aro analyzod in calc RC7492 (Data Points 10 through 35 & DP 75 through 20). The portion outside contolnmont is part of calculation RC9017 and the !mpact duo to penetration overprossurization for this portion is evaluated saparately. The following is thi ovaluation for portion insido containment for ponotration M85. EVAL,UATION Faultod peak pressuro por GL 96 06, P, s =12,352 psi Outsido dia of pipe, D. = 1.315" Wall thicknoss, t = 0,25" Longitudinal Prossuro stross, S5 =Pp..a D./4 t = 16,243 psi Conservatively using maximum Eqn 90 stresses from the design stress calc, shoot 23 at DP17, for tho SSE inortio stress = 6991 psi (consorvativo, since this already includos original pressure stress) Total Eqn 9D stress =16,243 psi + 6,991 psi
= 23,234 psi < 37,680 psl Allowable max stress for Eqn 9D= 2.4Sn = 37,680 psi
( Basod on Sn 15700 psi tst 150'F ) Note: Por Design Stress cale tJnit 1& 2 analysos are common due to routing similarity. , REl:EltENCES
- 1. CREE 06-12151-27 f$r pook pressuro
- 2. Design stress cal RC7492 Rovision 1
- 3. ASME Soction 111 Subsection NA,1974 edition CONCLUSION Faulted, Lovel D stresses are within the ASME Section 111 Cl 2 allowables i
'P Ag e, u
_ . - _ ~ _ _.
, UWA %.a.1?)Q-El I cue No. acoot7 sm or stPxi coew REV. PREPAREfUDATE REVIEWER /DATE SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION
' HOUSTON L.lGHTING & POWER , _ m dt%oChh1 UEt+17 GENERAL COMPUTATipN SHEET t,UlutC1 '""**" UNil/6 1&2 i While responding to Ger'eric Letter (GL) 96 06, it was found that penetration M85 on line 1 PS 1005.BB2 will exporlonco a faultod prossure of 12,352 psi. Therefore, faulted stresses need to be roevaluated and compared against the ASME Section lli Code. allowables. The portion of piping from valve FV4452 to penetration M85 is analyzed in calc RC9017.(Data Points 5 through 45). The portion inside containment is part of calculation RC7492 anq the impact due to penetration overpressurization for this portion is evaluated separately. The following is the evaluation for portion outside containment for penetration M85. EVALUATION i , 1 Faulted peak pressure por GL 96-06, P y.t =12,352 psi Outside dia of pipe, Do =1.315" Wall thickness, t =0.25" Longitudinal Pressure stress, S, = Pra Do/4 t i = 16,243 psi Conservatively using maximum Eqn 9D stresses from the design stress calc, sheet 27 at DP35, for the inertia stress -6905 psi (conservative, since this altisady includes original pressure stress) Total Eqn 9D stress =16,243 + 6905 = 23,148 psi < 37,680 psi Allowab:0 max stress for Eqn 9D = 2.4 S. = 37,680 psi ( Based on Sn 15700 psi at 150'F ) Note: Per Design Stress calc Unit 18 2 analyses are common due to similarity. REFERENCES
- 1. CREE 96-12151-27 for peak pressure
- 2. Design stress cal RC9017 Revision 1
- 3. ASME Section til Subsection NA,1974 Edition CONCLUSION Faulted, Level D stresses are within the ASME Section ll1 Class 2 allowables
-4 r
l'AfA9 4ff 191C;} A'1 STPM1 (0694) _ CA'4440- RC7499 SHT or
~
SOUTH TEXAS PROJECT REv. PREPARER /DATE REVIEWERCATE
- ELECTRIC GENERATING STATION
. HOUSTON UGHTING & POWER / ,
titan,[]?)47 $ A l-)* V GENERAL COMPUTATION SHEET SUDJECT 6" W * " UN11/s 1&? While responding to Generic Letter (GL) 9646, it was found that penetration M85 on line 1* PS-1002-BB2 will experience a faulted intemal pressure of 12,352 psig following a DBA. The Clevaletd containment tempaature following a DBA will heat up the trapped fluid between the isolation valves and cause this high pressure. Therefore, faulted stresses need to be reevaluated and compared against the ASME Section ill Code allowables. The podion of piping from valve FV4454 , FV4455, PS0011, FV4454A & FV4455A to the penetration M85 in analyzed in calculation RC7499. The portion outside containment is part of calculation RC9030 and the impact evaluation for this portion is performed separately. The following is the evaluation for portion inside containment for penetration M85. EVALUATION Faulted peak pressure per GL 96-06, Pg = 12,352 psig Outside dia of pipe, Do = 1,315 " Wall thicknoss, t = 0.25" ^ Longitudinal pressure st,ress, s, = Pg D. / 4 t
= 16,243 psi Conservaitively using the maximum Eqn 9D stress from the design stress calculation, sheet 25, at DP 15 = 10,214 psi This max stress includes the peak pressure stress used in the design calc, However, for conservatism, this is taken as only SSE inertia stress Total equation 9D stress = 16,243 + 10,214 = 26,457 psi < 37680 psi . (where Allowable max stress for Eqn 9D = 2.4Sn= 37,680 psi -
based on Sn = 15,700 psi at 150' F) Note: Per design stress calculation Unit 1&2 analyses are common due to similarity of piping configuration. , f REFERENCES
- 1. CREE 9G 12151-27 for peak pressure
- 2. Design stress calc RG7499 Revision 1
- 3. ASME Section til, Su section NA -
CONCLUSION Faulted Level D stresses are within the ASME Section ill Cl 2 Code allowables, i a i
. . . . , . , Z i. .. . . . .... . . i ,
of#A G 46 12.M1- g stract png enc wo. c9030 sm cc SOUTH TEXAS PRTECT REV, PREPARER 0 ATE REviEWERCATE ELECTRIC GENERATING STATION
, HOUSTON LIGHTINo 8 POWER / _-
lAtua bl>h1 INc)H f 7
.v .
GENERAL COMPUTATI,0N SHEET CUBJECT '"C***** UNIT /s tt? While responding to Generic Letter (GL) 96 06, it was found that penetration M85 on line 1' PS-1002-BB2 will experiedoe a faulted internal pressure of 12,352 psig following a DBA. The elevaletd containment tempe'aturer following a DBA will heat r apped fluid between the isolation valves and cause this high pressure. Therefore, faulte nood to be reevaluated and compared against ;he ASME Section lli Code allowat h p.. m of piping, outside containment, from valve FV4456 & FV2455 to the penetrati , % is alyzed in miculation RC9030 ( DP 5 through 120 & 50) The porti^n outside contain,. 2 pe ' calculation RC7499 and the impact evaluation forlthis portion is performed separately. The following is the evaluation for portion inside containment for per ..ooon M85. EVALUATION Faulted peak pressure por GL 96 OG, Ps = 12,352 psig Outside dia of pine, Do = 1,315" Wall thickness, t = 0.25" Longitudinal pressure stress, se = Pg D. I 4 t
= 16,243 psi Conservaltively using the maximum Eqn 90 stress from the design stress calculation, sheet 25, at DP 120 = 14,443 psi This max stress includes the peak pressure stress used in the design calc. However, for conserva i m, this is taken as only SSE inertia stress for our evaluation.
Total equation 9D stress = 16,243 + 14,443 = 30,686 psi < 37,680 psi (where Allowable max stress for Eqn 9D = 2.4Sn= 37,680 psi based on Sn = 15,700 psi at 150 F) Note: Per design strese calculation, Unit 2 Eqn 9D stresses are lower than Unit 1 stresses. REFERENCES
- 1. CREE 9612151-27, for peak pressure
- 2. Design stress calc RC9030 Revision 1 -
- 3. ASME Section 111, Subsection NA,1974 Edition.
CONCLUSION Faulted Level D stresses are within the ASME Section ill Cl 2 Code allowables. 6 4
.._ . _ . _ --_ _ _ _ _ _ _ . ~ . _ _ _ . _ . . . _ _ _ _ _ _ _ . . . . _ .
ClaCt& <o tM 6l-2-3 sTP)61(0&S4) CMC NO. - RC7494 sHT or1 SOUTH TEXAS PROJECT nty, PREPAREfUDATE REVEWERSATE ' ELECTRIC GENER ATING STATION
, HOUSTON LIGHTING & POWER f r thha r ild&} & $)VPQ '
GENERAL COMPUTATION SHEET u- '"*~~ a suaxcv - umn. .is While responding to Generic Letter (GL) 96 06, it was found that penetration M86 on lino . 1* PS 1003 UB2 will experience a faulted intemal pressure of 6,034 psig following a DBA. The clevaletd containment temperature following a DBA will heat up the trapped _ fluid between the isolation valves and cause this higher pressure. Therefore, faulted stresses need to be reevaluated and compared against the ASME Sedion 111 Code allowables. The portion of piping from valve FV4823 & PS0008 to the penetration M86, inside containment, is analyzed in calculation RC7494 ( DP 5 through 45),The portion outside containment is part of calculation RC9031and the_ impact evaluation fcr this portion is p6tformed separately. The following is the evaluation for portion inside containment for penetration M86. EVALUATION I Faulted peak pressure per GL 96@, Pg =6,034psig Outside dia of pipe, Do = 1.315' Wall thickness, t = 0.133' . Longitudinal pressure stress, s, = Pg D. / 4 t
= 14,915 psi Conservaitively using the maximum Eqn 90 stress from the detion stress calmiation, sheet 25, at DP 110 = 22,123 pal This max stress includes the peak pressure stress used in the design calc. However, for conservatism, this is taken as only SSE inertia stress Total equation 9D stress = 14,915 + 22123 = 37,038 psi < 37680 psi (where allowable max stress for Eqn 9D = 2AS.,= 37,680 psi ,
based on Sn = 15,700 ptriat 150' F) Note: Per design stress calculation Unit 1&2 analyses are common due to similarity of piping configuration. REFERENCES
- 1. CREE 96-12151-27, for peak pressure
- 2. Design ctress calc RC7494 Revision 1
- 3. ASME Section ill , Subsedion NA 1974 Edition CONCLUSION Faulted Level D stresses are within the ASME Sedion lli Cl 2 Code allowables.
l ('LM Afe tRMi-D STP361(0$94) cue 93. RC9031 ski or SOUTH (EXAS PROJECT l REV. PREPARER /DATE REVIEWERSATE ELECTRIC GENERATING STATlqN . HOUGTON t.lGHTING & POWER / _ _
, )( (Yl,l41 b?
Um tr ,
-d , .
GENERAL COMPUTATION SHEET
*t>8 JECT '"W*"" I UNG/* 182 4
While responding to Gonoric Lottor (GL) 96 06, it was found that penetration M86 on line 1* PS-1003-UB2 will experience a faulted internal pressure of 6,034 psig following a DBA. The elevaletd containment temperature following a DBA will heat up the trapped fluid between the isolation valves and cause this higher pressure. Therefore, faulted stresses need to be reevaluated and compared against the ASME Section ill Code allowables. The portion of piping from valve FV2454 & FV4461 to the penetration M86, outside containment, is analyzed in calculation RC9031 ( DP 5 through 110) The portion inside containment is part of calculation RC7494 and the impad evaluation for this portion is performed separately. The following is the evaluation for portion outside containment for penetration M86. EVALUATION Faulted peak pressure per GL 96@, Pg 6,034 psig Outside dia of pipe .Do = 1.315' Wall thicknoss, t = 0.133' Longitudinal pressure stress, sw = Pg D. / 4 t
= 14,915 psi Conservaltively using the maximum Eqn 9D stress from the design stress calculation, sheet 27, at DP 45 = 9372 psl This max stress includes the peak pressure stress used in the design calc. However, for conservatism, this is taken as only SSE inertia stress Total equation SD stress = 9,372 + 14,915 = 24,287 psi < 37G80 psi (where allowable max stress for Eqn 9D = 2.4S,,= 37,680 psi based on S,, = 15,700 psi at 150' F)
Note: Per design stress calculation Unit 1&2 analyses are common due to similarity of piping configuration. REFERENCES
- 1. CREE 9G-12151-27 for peak pressure
- 2. Design stress calc RC9031 Revision 1
- 3. ASME Section 111, Subsection NA,1974 Edition CONCLUSION Faulted Level D stresses are within the ASME Section 111 Cl 2 Code allowables.
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CWh % 12.M\ ~ k.',1 sTP361 (OMN) CMCin Rc7490 sHT or SOUTH TEXAS PROJECT REv. PREPARER /DATE REvCWER/DATE ELECTRIC GENERATING STATION
, HOUSTON UGHTING & POWER /
,liian _ L.}>,hy ,h L-Q GENERAL COMPUTATION SHEET SUBJECT *N"**" UNITIs 1&2 i
While responding to Generic Letter (GL) 96 06, it was found that penetration M29 on line 1* PS 1004-UB2 will experish a fauttod intomal pressure of 6437 psig following a DBA. The clevaletd containment temperature following a DBA will heat up the trapped fluid between the isolation valves and cause this high pressure. Therefore, faulted stresses need to be reevaluated and compared agalnat the ASME Section 111 Code allowables. The portion of piping from valve FV4824 & PS0001 to the penetration M29, inside containment, is analyzed in calculation RC7490 ( DP 5 through 50) The podion outside containment is part of calculation RC9032 and the impact evaluation for this podion is p,erformed separately. Tne following is the evaluation for portion inside containment for penetration M29. EVALUATION I Faulted peak pressure p,or GL 9GO6, Pg = 6,437 psig Outside dia of pipe, Do = 1.315" Wall thickness, t = 0.133" Longitudinal pressure stress, s, = Pg D.14 t c 15,911 psi Conservaitively using the maximum Eqn 9D stress from the design stress calculation, sheet 25, at DP 75 = 19,283 psi This max stress includes the peak pressure stress used in the design calc. However, for conservatism. this is taken as only SSE inertia stress Total equation 9D stress = 15,911 + 19,283 =35,194 psi < 37,680 psi (where Allowable max stress for Eqn 9D = 2.4Sn= 37,680 psi based on Sn = 15,700 psi at 150 F) Note: Per design stress calculation Unit 1&2 analyses are common due to similarity of piping configuration. REFERENCES
- 1. CREE 96-12151-27 for peak prossuro
- 2. Design stress calc RC7490 Revision 1
- 3. ASME Section ill, Subsection NA -
CONCLUSION Faulted Level D stresses are within the ASME Section lli Cl 2 Code allowables.
6FE 4 6-bit 4 7 ~1 s1P361(06M) CALC NO. RC9032 sHT or SOUTH TEXAS PROJECT _ RC' f. PREPARER /DATE REVIEWERIDATE Et.ECTRIC GENERATING STATION HOUSTON UGHTING & POWER / _ hfulnallfG2 / NfL.k /-3'fl GENERAL COMPUTATION SHEET SUBJECT " " * *
- UNMis 182 While responding to Generic Letter (GL) 96 06, it was found that penetration M29 on line 1' PS 1004 UD2 will experience a faulted intemal pressure of 6,437 psig following a DBA The clevaletd containment temperature fcilowing a DBA will heat up the trapped fluid between the isolation valves and cause this high pressure, Therefore, faulted stresses need to be reevaluated and compared agenst the ASME Section ill Code allowables. The portion of piping from valve FV4466 to the penetration M29, outide containment, is analyzed in calculation RC9032 ( DP 5 through 55). The portion inside containment is part of calculation RC7490 and the impact evaluation for this portion is performed separately.
The following is the evaluation for portion outside containment for penetration M29. EVALUATION Faultod peak procsuro por GL OG@, Pg = 6,437 psig Outside dia of pipe Do = 1.315" Wall thickness, t = 0.133" Inside dia of pipe, d = 1.049" Longi'.udinal pressure stress, s, = Pg D. / 4 t But, por Code Section NC 3651, this pressure term can be replaced with the following, S, = Pd' / ( D' - d' ) 2
, = 6437x 1.049' / ( 1.315 - 1.049')
= 11264 psi Maximum Eqn 9D stress from the design stress calculation, sheet 27, at DP 20, computer run X8133 dated 12/18/86 l = 23,518 psi This max stress includes the peak pressure stress, Sip, of 700 psi, per design calc.
Total equation 9D stress' = 11,264 + (23518-700) =34,082 psi < 37,680 psi (where allowable max stress for Eqn 9D = 2.4Sn= 37,680 psi ' based on S., = 15,700 psi at 150 ' F) Note: Per design stress calculation Unit 1&2 analyses are common due to similarity of piping configuration. REFERENCES 1, CREE C6-12151-27 for peak pressure
- 2. Design stress cale RC9032 Revision 1
- 3. ASME Section lil, Subsection NA t
CONCLUSION I Faulted Level D stresses are within the ASME Sedion ill Cl 2 Code allowables. l M
C#446 4 6 illtfg 4 7 s1P361 (06H) CALCto. Rc0808 sur or SOUTH TEXAS PROJECT. REV. PREPARER /DATE REVEWER/DATE ELECTRIC GENERATING STATidN -. HOUCTON LIGHTING & POWER , Ahit a hl)/t) b YY GENERAL COMPUTATION SHEET SUBJLCT "'**** UNG/s 162 i Whilo rosnonding to Gonoric Lottor (GL) 96-06, it was found that ponotration M72 on lino 2' ED 1124-SB2 will experience a faulted internal pressure of 437 psig following a DBA. The clovaletd containment temperature following a DBA will heat up the trapped fluid between the isolation valves and cause this higher pressure. Therefore, faulted stresses need to be reevaluated and compared against the ASME Sodion lli Code allowables. The portion of piping from valve MOV0064B to the penetration M72, insido containment, is analyzed in calculation RCOB08 ( DP 5 through 47) The portion outsido containment is part of calculation RC1291and the impact evaluation for this portion is performed separately. The following is the evaluation for portion inside containment for penetration M72. i EVALUATION Faulted peak pressure por GL 96-06, Pg = 437 psi Outside dia of pipe Do a 2.375' & 3.5" ( Piping is partly 2* & 3' nominal) Wall thickness, t = 0.154' & 0.21G" Longitudinalpressure stress, s, = Pg D. / 4 t
=1685 psi & 1770 psi ( for 2" & 3" dia respy.)
Therefore, use the higher value of S, for this evaluation Conservaitively using the maximum Eqn 9D stress from the design stress calculation, sheet 34, at DP 5 = 5249 psi This max stress includes the peak pressure stress used in the design calc. However, for conservatism, this is taken as only SSE inertia stress Total equation 90 stress = 1770 + 5249 = 7019 psi < 37680 psi (where allowahle max stress for Eqn 9D = 2.4S,,= 37,680 psi t>ased on S,, = 15,700 psi at 150 F) Note: Per design stress calculation Unit 1&2 analyses are common due to similarity of piping configuration. REFERENCES
- 1. CREE 96-12151-27 for peak pressure
- 2. Design stress calc RC0808 Revision 4
- 3. ASME Section lil, Subsection NA,1974 Edition CONCLUSION Faulted Level D stresses are within the ASME Section lli Cl 2 Code allowables.
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STP361 (OS94) cAc Ho- RC1291 SKT or SOUTH TEXAS PROJECT REv. PREPARER /DATE REVtEWEfUDATE ELECTRIC GENERATING STATION
. HOUSTON LIGHTING & POWER f _
bdtwxblyAH 0(WlN@ GENERAL COMPUTATION SHEET SUBJECT *N* UNtTfs 1&2 l Whilo responding to Gonoric Letter (GL) 96-06, it was found that ponotration M72 on iino 2' ED-1124-SB2 will experience a faulted i< < mal pressure of 437 psig following a DBA The elevaleid containment temperature following a DBA will heat up the trapped fluid betwoon the isolation valves and cause this higher pressure. Therefore, faulted stresses need to be reevaluated and compared against the ASME Section Ill Code allowables. The portion of piping from valve 4B FV7800 to the penetration M72, outside containment, is analyzed in calculation RC1291 ( DP S through 35) The portion inside containment is part of calculation RC0808 and the impact evaluation for this portion is performed separately. The following is the evaluation for portion outside containment for penetration M72. EVALUATION Faulted peak pressure p'er GL 96-06, Ps = 437 psig Outside dia of pipe, Do = 2.375' & 3.5' ( Piping is partly 2' & 3' nominal) Wall thickness, t I = 0.154' & 0.216' Longitudinal pressure stress, sp = Pg D. / 4 t
= 1684 psi & 1770 psi ( for 2" & 3" dia respy.)
Thereforo, use the higher value of S, for this evaluation Conservaitively using the maximum Eqn 9D stress from the design stress calculation, sheet 34, e' DP 5 , = 8100 pst This max stress includes the peak pressure stress used in the design calc . However, for conservatism, this is taken as only SSE inertia stress Total equation 9D stress = 1770 + 8100 = 9870 psi < 37680 psi (where allowable max stress for Eqn 9D = 2.4Sn= 37,680 psi based on Sn = 15,700 phi at 150' F) - Note: Per design stress calaalation Unit 1&2 analyses are common due to similarity of piping configuration. REFERENCES
- 1. CREE 96-12151-27 (or peak pressure
- 2. Design stress calc RC1291 Revision 3
- 3. ASME Section 111, Subsection NA,1974 Edition CONCLUSION Faulted Level D stresses are within the ASME Section ill Cl 2 Code allowables.
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\ .. . . . C F # A G A fo -t u rfI - P M 6iPJ61 (0&94) e CALC NO. RC0117 SHT or REV. PREPARER /DATE REVIEWER /DATE SOUTH TEXAS PROJECT
- ELECTRIC GENERATING STATION HOUSTON LIGHTING & POWER f 1 E0\M &>b7 km/h-l)4 GENERAL COMPUTATION SHEET SUDKCT " ' * * * * " UNIT /s 1&2 While responding to Generic Letter (GL) 96 06,it was found that penetration M55 on lino 8" RH 1204 KB2, and p'enetration M76 on line 8" RH 1304-KB2 will experience a faulted pressure of 2111 psi following a DBA. Therefore, faulted stresses need to be reevaluated and compared against the ASME Section 111 Code allowables.The portions of piping from valvo RH00G9B to penetration M55 ( DP 160 TO 190) and portion from valve RH00640 to penetration M76( DP 205 to 230 are analyzed in calc RC0117. The portions inside containment are parts of calculations RC5112 and RC5114 respectively. The impact due to penetration ovorpressurization for these po tions are evaluated separately.
The following is the evaluation for portion outside containment for penetrations M55 and M76. The penotration material has higher allowable stresses and, therefore, is enveloped by the piping evaluation as mentionod below. EVALUATION Faultod peak pressure per GL 96-06, Pp.a = 2,111 psi (Conservatively, higher pressure between 6' RH1204KB2 & 6' RH1304KB2 used) Outsido dia of pipo, Do = 8.625" Wall thickness, t = 0.322" Pipe material, SA312 TP 304,304L,316 & 316L Penetration M55 & M76 min wall thickness = 0.322' Penetration material, SA312 TP304 Longitudinal Pressure stress, S, = P g Do l 4 t
= 14,136 psi Conservatively using maximum Eqn 9C stresses from the design stress calc, page 34, at DP190, and conservatively using this as SSE inertia stress = 12,626 psl Total Eqn 9D stress = 14,136 psi + 12,626 psi
= 26,762 pal < 37,680 psl Allowable max stress for Eqn 9D = 2.4 S,, = 37,680 psi
( Based on S,,15,700 psi at 150 F which is the same for all above listed pipe material) Note: Por Design Stress calc Unit 1& 2 analyses are common due to similarity. I i
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$1P361(OMM) CALC No. RC0117 sHT or j SOUTH TEXAS PROJECT . REV. PREPARERCATE - REVIEWERSATE ELECTRIC GENERATING STATION , HOUSTON UGHTING & POWER r I>diuu s}hp1 PC Alref/
GENERAL COMPUTATION SHEET : I SUBJECT 5"******" UNIT 4 t&2 j i REFERENCES
- 1. CREE 96-12151-27
- 2. Design Stress calculation RC0117 Revision 5
. 3, ASME Section 111, Subsection NA,1974 Edition
- 4. UFSAR Table 3.94A,and 3.9-7A, Stress Criteria for ASME Section 111 Class 2
- 5. Paragragh NC/ND 3611.2 of Winter 1976 Addenda CONCLUSION
! Crer,w Faulted Level D Stresses are still within the ASME Ill Class 2 Code allowables.,
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$1P.%1 (06H) CALC No. RCs112 SHT or SOUTH TEXAS PROJECT REV. PREPARERCATE REV4EWERSATC ELECTRIC GENERATING STATIQN ,
HOUSTON LIGHTING & POWER f _ m j k,dria Shrh1 $ U. - Sbft] ,a GENERAL COMPUTATION SHEET
=<*"**" unitis suexc1 tar l While responding to Gederic Letter (GL) 9646, it was found that penetration M55 on line 8' RH-1204-KD2 will experience a faulted internal pressure of 2,111 psi following a DBA. There is no inherent overpressure protection in this line due to the type of containment isolation valves. The elevated containment temperature following a DBA will heat up the trapped fluid between the valves and cause high pressure. Therefore, faulted stresses need to be reevaluated and compared against the ASME Section 111 Code allowables. The portion of piping from valve RH00638 to penetration M55 is analyzed in calc RC5112 (Data Polnts 213 through 220). The portion outside containment is part of cakulation RC0117 and the impact evaluation for this portion is done separately. The penetration material has higher allowable stresses. Therefore, the penetration evaluation is also oovered by the piping evaluation.
The following is the evaluation for portion inside containment for penetration MSS. EVALUATION Faulted peak pressure per GL 96-06, Ps = 2,111 psi Outside dia of pipe, D. = 8.626" Wall thickass, t = 0.322" Penetration nstorial SA312 TP304 Penetration min wallthickness = 0.322' Longitudinal Pressure Stress, SW = Pg D.I4t
= 14,136 psi Maximum Deadweight stress in the portion between penetration and isolation valve, at DP 213 = 1,289 psi (Ref. Snum X6014 dated 8/16/86)
Maximum SSE inertia stress at DP213 = 4064 psi (Ref. Snum X6014 date 8/16/86) Maximum LOCA stress, at DP 216 = 72 psi (Ref. Snum X035 dated 7/10/86) Maximum Jctioad stress, at DP 213 = 198 psi (Ref, Snum X5214 dated _7/15/86) Dy inspection SSE stress is higher than Jet & LOCA stress Therefore, total max Eq9 9D stress Peak pressure stress, S, + deadweight + SSE
=14136 psi + 1289 psi + 4064 psi = 19,489 psi < 37,680 psi (Allowable maximum stress for Eqn 9D = 2.4 Sn =37,680 psi '
based on Sh of 15700 psi at 150*F) vM L m
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$1PMt (06H) CALCHo. RC$j12 DiT - Of SOUTH TEXAS PROJECT REV. PREPARER /DATE REVIEWER /DATE ELECTRIC GENERATING STATION
, HOUSTON LIGHTING & POWER / _
h()tluo E)1NU kt$}9
-GENERAL COMPUTATION SHEET
'd 8 "" ** 81 UNIT /s 182 SUBJECT s
Note: Unit 1 cale is applicable for Unit 2 also, except LOCA at the small bore branch and Thermal loadcase and minor dianges as shown in Attachment G. There is no impact in the portion of piping being evaluated hero. I REFERENCES
- 1. CREE 96-12151-27 for peak pressure calculation (Except those covered by Ref 2)
- 2. Design Stress calc RC5112 Revision 8
- 3. ASME Section 111. Subsection NA,1974 Edition
- 4. UFSAR Table 3.94A and 3.9 7A, Stress Criteria for ASME lil Code Class 2 & 3
- 5. Paragraph NC/ND-3611.2 of Winter 1976 Addenda CONCLUSION i ,
Faulted Level D stresses are still within the ASME Section ill Class 2 Code allowables. I i A t- M
, Cct'A9 4(c,\2 M lJ 7 i cAtc Ho- RCS114 SHT or STP361(OSH)
SOUTH TEXAS PROJECT REV. PREPARER /DATE REVIEWER /DATE ELECTRIC GENERATING STATION , HOUSTON UGHTING & POWER / L shrn L hhh> GENERAL COMPUTATION SHEET SUBJEC1 " 8 N ' '* UNITA 1&2 l Whilo rosponding to Generic Lottor(GL) 96-06, it was found that ponotration M76 on lino 8' RH-1304 KB2 will experience a faulted intomal pressure of 2092 psig following a DBA. The olevaletd containment temperature following a DBA will heat up the trapped fluid betwoon the isolation valvos and cause this higher pressure. Therefore, faulted stresses nood to be roovaluated and compared against the ASME Section Ili Code allowables. The portion of piping from valve RH0063C to the penetration M76, insido containment, is analyzed in calculation RC5114 ( DP 485 through 495) The portion outsido mntainment is part of calculation RC0117and the impact evaluation for this portion is porformed separately. The following is the ovaluation for portion inside mntainment for penetration M76. The ponotration material has higher allowablo strossos and thorofore, the ovaluation for penetration is envoloped by the piping evaluation. EVALUATION Fauttod poak prossuro por GL OG-06, Pp.a = 2,092 psig Outsido dia of pipe, Do = 8.625" Wall thickness, t = 0.322" Pipo material, SA312 TP304,304L,316,31GL Ponotration min wall thickness = 0.322' Penetration material = SA312 TP 304 Longitudinal pressure stress, sp = Pp.4 D. / 4 t
= 14,008 psi Maximum Eqn 9D stress in this portion at DP 485 l = 13,701 psi Ref Snumx6028 dated 8/16/86 But, this max Eqn 9D st/ess includes pressure stress S,of 97E6 psi Therefore, sustituting this with S, calculated for the new peak prossure, Max Eqn 9D stress at DP 485 = 14,008 + ( 13701 - 9756)
= 17,953 psi < 37,680 psi (where allowable max stress for Eqn 9D = 2.4Sn = 37,680 psi based on Sn = 15,700 psi at 150 F)
Note: Por design stress calculation Unit 1&2 analyses are common, except minor reevaluations as shown in Appendix E of design calc. However, there is no impact in this portion of piping. , 1 O N
C#dAS Als.A2.1Gt-,T1 s1N61(o&94) i CALC NO. Rc5114 $W OF SOUTH TEXAS PROJECT REV. PREPARER /DATE REVIEWERIDATE ELECTRIC GENERATING STATIQN
, HOUGTON LIGHTING & POWER l 3 ,
e )](av sjuhy &(nflSBE GENERAL COMPUTATION SHEET GUBJLCT ** ' N " UNIT /s 14 2 REFERENCES
- 1. CREE 96-12151-27 I .
- 2. Design Stress calcula4 ion RC5114 Revision 7 3, ASME Section lil, Subsection NA,1974 Edition '
- 4. UFSAR Table 3.94A and 3.0 7A, Stress Criteria for ASME Section 111 Class 2
- 5. Paragragh NCIND-3611.2 of Winter 1976 Addenda CONCLUSION i kere Faulted Level D Stresses are still within the ASME,Ill Class 2 Code allowables.,
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F CVLG Afo.-bMW X"1 CALC No. Rc7491 SHT OF STPMt @H) Rcv. PREPARER /DATE REVIEWER /DATE SOUTH TEXAS PROJECT ' ELECTRIC GENERATING STATION f _ HOUSTON LIGHTING & POWER {I[dh t/07 Ob[MMf/ GENERAL COMPUTATION SHEET SUBJrCT " ' * * " " UNITts 1M While responding to Generic Letter (GL) 9646, it was found that penetration M85 on line j' PG 101G 882 will experience a faulted intomal pressure of 6935 psig following a DBA. The elevaletd contrkenent temperature following a DBA will heat up the trapped fluid between the isolation valves and cause this higt.or pressure. Therefore, f aulted stresses need to be reevaluated and compared against the ASME Sedion Ill Code allowables. The portion of piping from valve FV4451 and PS004 to the penetration M85, inside containment, is analyzed in calculation RC7491 ( DP 10 through 30) The portion outside containment is part of calculation RC9033 and the impact evaluation for this portion is performed separately. The following is the evaluation for portion inside containment for penetration iA85. The penetration material has the same allowable stressos as the piping and therefore, the following evaluation is applicable for the piping and the penetration. i EVALUATION Faulted peak pressure per GL 9606, Pg = 6,935 psig ' Outside dia of pipe, Do l = 1.315" Wall thickness, t = 0.25" Pipe matarial, SA312 Td304,304L,316,31GL Penetration min wall thickness = 0.25" ' Penetration materialSA312 TP 316L Longitudinal pressure stress, s, = Pm D. /4 i
= 9,119 psi Maximum Eqn 9D stress in this portion at DP 10 = 4,403 psi Ref Bnum x 1342 dated 1/21/1987 This value is conservative since it includes Longitudinal pressure stress Conservatively adding this with S, calculated for the new peak pressure, Max Eqn 9D stress at Dh 10 = 4,403 + 9,119 -
I = 13,522 psi < 37,680 psl where allowable max stress for Eqn 9D,for the piping (based on Sn = 15,700 psi at 150 F) Note: Per design stress' calculation Unit 1&2 analyses are common. y
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$TP361 (%94) CMC NO. RC7491 pfT N SOUTH TEXAS PROJECT 4 REv. PRE ARERCATE REVKWERCATE -
ELECTRIC GENERATING STATION -
. HOUSTON LIGHTING & POWER film - (//1)S7 [ 18 dis /p/
/ I E GENERAL COMPUTATION SHEET SUBJCCT *" " * " l UNIT /s 1&2 REFERENCES t
i
- 1. CREE 96-12151-27 2 Design Stress calculation RC7491 Revision 1 3, ASME Section lil, Subsection NA,1974 Edition
- 4. UFSAR Table 3.94A and 3.9-7A, Stress Criteria for ASME Section ill Class 2 S. Paragragh NC/ND-3611.2 of Winter 1976 Addenda CONCLUSION Faulted Level D Stresses are still within the ASME Section til Class 2 Code allowables.,
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l (4'M40 tM- 111G1 -17 CALC Ho. Rc9033 $HT OF sTP301 fM) SOUTH TEXAS PRO 4CT REV. EPARER/DATE REVIEWER /DATE ELECTRIC GENERAnNG STATlON HOUSTON UGHTING & POWER
, ur 5/A/c [ jf/3/p s g 1-GENERAL COMPUTATION SHEET CUBJECT *" N' *m UNIT /s 1A2 While responding to Generic Letter (GL) 96 06, it was found that penetration M85 on line 1' PS 1016 BB2 including piping between valves FV4451 A & PS0004 and FV4451B will experience a faultod pressure of 6935 psi following a DBA. Tho olovated containmont toperature following a DDA will heat up the trapped fluid between the isolation valves and cause this high pressure. Therefore, faulted stresses need to be reevaluated and compared against the ApME Se: tion 111 Code allowables.The portions of piping from valvo FV4451D to penetration M85 ( DPS to 40) are analyzed in calc RC9033. The portions inside containment are parts of calculations RC7491. The impact due to penetration overpressurization for the portion inside containment are evaluated separately. ,
The following is the evaluation for portion outside containment for penetrations M85. The penetration material has the same allowable stresses as the piping and, therefore, the following evaluation is applicable for both the ponetration and the piping. EVALUATION Faulted peak pressure per GL 96-06, Pp..x = 6,935 psi Outside dia of pipe, Do, = 1.315" Wall thickness, t = 0.250" Pipo material, SA312 TP 304,304L,316 & 316L. Penetration M85 min wall thickness = 0.25' Penetration material, SA312 TP31GL Longitudinal Pressure stress, S, = P p. 6 Do I 4 t
' = 9,120 psi Unit 1 Maximum Eqn 9D stresses from the design stress cale, page 26, at DP20, including pressure stress = 22,478 pst Pressure stress used in the calc, Si, = 1394 psi Total Eqn 9D stress based on new pressure = (224781394) + 9120 psi
= 30,204 psi < 37,680 psi Allowable max stress for Eqn 9D = 2.4 S. - 37,680 psi
( Based on S.15,700 psi at 150*F which is the same for all above listed pipe material) 40 , 1 1
l . 1
-- fEfg> q[p- UllGl-1.7 s1.'36t (06M) M C NO. RC9033 sHT or SobTH TEXAS PROJECT REv. PRE ARER/DATE REVIEWER /DATE ELECTRIC GENERATING STATION . HOUS'ON LIGHTING & POWER i (4Us,Sh3}97 [ r//3/97 ,
GENERAL COMPUTATION SHEET
" * * * * " UNITts 1&2 SUS ECT Unit 2 There were deviations between Unit 1 and Unit 2 piping and therefore, Unit 2 was reanalized.
The maximum Eqn 9D stresses at DP 5, per Page 3 of Attachment 3, a 28,077 psl This includes a pressure stress of 2091 psi ( Ref: page 26, Attach. 3) Therefore, Total Eqn 9D stress based on faulted pressure = (28,077 - 2091)+ 9120 m35,106 psi < 37,680 psi Alkwvable maximum stress for Eqn 9D = 2A Sn = 37,680 psi ( Dased on Sn = 15,700 psi at 150' F as mentioned before) REFERENCES .
- 1. CREE 9612151-27
- 2. Design Stress Calculation RC9033 Rev 2
- 3. ASME Section ill, Subsection NA,1974 Edition
- 4. UFSAR Table 3.94A and 3.9-7A. Stress Criteria for ASME Section lli Class a
- 5. Paragraph NC/ND 3611.2 of Winter 1976 Addenda CONCLUSION Faulted Level D stressey are still within ASME Section til Class 2 allowables.
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M> 4 b 1116 l. " *) ~ STP361(0044) CAtc No. RC1234 SHT cc - , SOUTH TEXAS PROJECT REV. PREPARER /DATE REVIEWER /DATE
. Et.ECTRIC GENERATING STATION . HOUSTON LIGHTING & POWER . / _
kiftud ' 9)2G11 NY hl9) f GENERAL COMPUTATibN SHEET SUBJECT ' ' " ' * * * * ' ' ' ' ' UNITis 142 t EVALUATION OF IMPACT DUE TO ADDED INSUtATION
' in order to reduos the impact of the pak pressure susequent to a DBA, per GL 96@,
1" Nukon insulation is added to line 3" E1009aB2 from Containment penetration M56 to wall penetration 155 inside motainment. This impacts calc RC1234. The bending stresses are increased by the fact'or of weght differential per lineal foot. The total stresses are compared against the allowables as follows. Weight per lineal foot of 1" Nukon insulation per vendor info (Ref: C006-0016-AOO)
= 1.0 lb/ft Weight per foot of 3" pipe, including contents = 10.78 lbs/ft ( Ref calc Rc1234 Rev 5) .
i Total weght including insulation = 11.78 lbs/ft
- . Ratio of weights per lineal foot = 11.78/10.78 = 1.093 Therefore, the bending stresses can be multiplied by the above factor ASME PORTION FROM MOV 312 TO PENETM56 Peak pressure during accident condition per Gt. 9646 = 2,690 psi Pressure stress for this faulted pressure = Se = P Do/(4t)
= 2690 x 3.5/(4 x 0.216) = 10,896 psi Maxunum bending stress for Eqn 90, excluding lon0 itudinal pressure stress from the existing analysis = 3819 -365 = 3454 psi ( without insulation) increased bending strsss with 1" insulation, Eqn 90 = 3454 X 1.093 = 3775 PSI
' Total pressure + Bending stresses for eqn 9D
= 10,896 + 3775 = 14,671 psi < 37,680 psi ( allowable)
ANSI B31.11NSULATED PORTION FROM MOV 312 TO PENET 155 Max stress, for EQN 12D from existing calc = 4033 psi Irweased Eqn 120 Stress due to 1" insulation = 4033 x 1.093
= 4408 psi < 30,408 psi ( allowable)
$Aq M l
STP.El (OMH) cAtcwo RC1234 C#Md b-54 lEtGl- 1] or SOUTH TEXAS PROJECT ncv. PREPARER /DATE REVIEWER /DATE ELECTRIC GENERATING STATION HOUSTON LIGHTING & POWER / _ _ faw h h> 4 -84h 7 GENERAL COMPUTATION SHEET f,UBJECT 8"***"** UNiits 1&2 l Mzzio Loads Evaluation The only equipment nozzios in this calculation are the Reactor Coolant Drain Tank. And thoso are non-safety related and therefore do not have to meet any faulted condition loads.Besides, the insulation extends only upto penetration 155, far away from the equipments and therefore, there is no impact on the nozzlo loads. Support Loads Evaluation The addition of insulation caused additional wolght of only ilb/ft and extends to a portion of only 25 ft of piping, maximum. There are three supports irithis region which will share the loads due to the addition of insulation, in addition to the penetration which is a virtual anchor. The supports are WL-1009-HL5002, WL-1008-GU401, & WL-1008-GU402. Thus the total addition of 25 lbs due to insulation can be shared between these supports. The supports have been already designed with 15% margin over the previous loads. Activo Valvo End Load Activo valvo end loads for valvo MOV 312 have significant margins per the existing calculation. The minor increase in moments would cause insignificant impact due to additional insulation wolght. Besides, the original allowable forces and moments are based on yield strength of connecting pipo being much lower than the actual Installed piping. Therefore, valve end loads I would still meet the allowables, Evaluation of Penetrati'on M 56 Calculation RC9894, which has a detailed finite element analysis of the penetration, was reviewed. It was found that significant margin exists for all sections of the penetration, including the sleeve and cap. The least margin for the faulted loadcase was for the cap which had a tota l stress of 39.88% of the allowa le of 42,000 psi. Total faulted stress intensity = Po + W + SSE (inertia)
= 2,090 + (16748 x 1.098) i = 21079 psi < 42,000 psi ( allowable) l ( Conservatively, total current stresses from the calc were increased by factor of 1.098 to account l for the weight ofinsulation) i 1
l Therefore, the penetration stresses rnoet the project criteria. Also, CMTRs for Penetration M56 l- revealed that the material strength is much higher than the piping. iAp 40
l- , I i CE n #/ 4.fo 1 2] C l L') s' TP.M1(0%4) CALCHO. RC6371 sui or SOUTH TEXAS PROJECT REv. - PRCPARCfVDATC REVICWCR/DATC ELECTRIC GENERATING GTATION - HOUSTON UGHTING & POWER, / _ l 16tM S))thL < ll 6 GENERAL COMPUTATION SHEET l SUtuCCT ' " * * " " UNIT /s t&2 1 I RECONCILIATION OF PlPE STRESS The longitudinal pressure stress is calculated based on the peak press ire calculated due to GL 9GG. This is applicable only ftom penetration M56 to FV4913. t Peak Pressure during accident condition per GL 96@ = 2,690 psi Revised peak pressure stress, S, = P Do/(41)
= 2690 x 3.5/(4 x0.21G)
= 10.897 psi Maximum bonding stress for Equation 9D from the existing analysis, excluding Sp = 4257-315
= 3942 psl Total Eqn 9D stress = 10,697 + 3942
= 14,839 psi < 37680 psi PENETRATION & FUNCTIONAL CAPABILITY EVALUATION The penetration stresses and loads were reviewed and as evaluated in calc RC1234, there is significant margin and also the CMTR's reveal that the material has higher yield strengths.
Functional capability requirements are met since faulted stresses are within upset allowables. There is no other impact in this portion of line, i . I 1
& N ((-
ttf. M (MA Ab I2MI,.1'1 Author: James H Wigginton at FSS-1-STP-HLP Date: 4/29/97 9:39 AH Prioritys Normal tos Quoc K Huynh at FS6-2-STP-HLP cc Charles R Albury CC:"Safdar Hafoez: Subjects New peak line pressures with corresponding line temperatures
.................................... Message contents -------.--------.---....-..-.....-.-
The following pressures were generated with a preliminary version of the code we are developing to perform the pipe pressurization analyses. The code was benchmarked against the analyses performed for CREE 96-12151-16.
. h se results and the results of the benchmarking study have been reviewed, and found to be acceptable by Safdar Hafeez. We do not expect; these peak pressures to change, however, since tho' code is not yet v;rified changes are possible.
RH-1204 l 20 psig i 100 psig 600 psig 65 deg, F 2332 psia- 2417 psia 2946 psia 70 deg. F. 2238 psia l2322 psia 75 deg. F 2126 psia ;2209 psia RH.1304 l- 20 peig .100 psig 600 psig 65 deg._F 2312 psia 2398 psia 2926 psia 70 deg. F 2219 psia 2303 psia 75 deg. F 2107 psia 2190 psia I . I WL-1009 l '150 psig 65 deg. F 2924 psia i 70 deg. F 2824 psia 4 75 deg. F 2705 psia PS-1016. l 2300'pnia - 65 deg. F l' 6950 psia Paek Temperatures RH-1204 l 20 psig. 100 psig 600 psig __ _ _ _ - - - _ _ _ _ _ = _ - _ - _ - _ - _ A.
...........................(124.3 65, deg. ' P ' l - 12 4.3 . des. F : ' deg,F' 124.3 deg.F-(- .
l- .. -
- 70 deg.-F;l.'124.5 deg.P. 124.5 deg.F- C$.ti(F/ - $(P- 1%lC
/ l R.7, ,
I i 7 5 ' deg . ' F_ _ l 124.8 deg.F 124.8 deg.F- { Q
, l- t I
- RN.1304:
l_ _ 20 psig . 100 psig '600 psig
~
65 deg. F.lL 124.0 dog.F '124.0 deg.F 124.0'deg.F t l 70 deg. F ll 124.2.deg.F -124.2 deg.F 1-
. 75 deg. F l 124.4 deg.F 124.4 deg,F WL.3009 l 150 psig-(IRC / ORC)
~ 65 deg. F l 126.9 deg.F / 126.6 deg.F l
70 deg. F l 127.3 deg.F / 126.9 dog,F l-75 deg. F l' 127.7 deg.F / 1.?7.2 deg.F PS-1016 . l 2300 psia (IRC / ORC)
- 65 deg. F l 142.3 deg.P / 141.0 deg F t h I
i h i . l.
xm 61:uest r7 OPGP05-ZA-0002 Rev.5 10CFR50,59 Evaluations Form 1 ' 10CIK50.59 Screening Form Page 1 of 3 D OTIICR CREE OuteT e1 O ursARCN O DESIGN CilANOC OUNIT 82 l 4 TPNS # .[1% , System two.lottor dosignator RH,SI.PS ED,WL UNIT 1 O UNIT 2 O BOTH - ORIGINATING DOCUMENT NO. , CREE 9612152 27 REV.NO. O DESCRIPTION OF CHANGE 1he purpose of INS safety evaksation is to evaluate the effects of thermal overpres$Ure on the structoral Integrity of 10 RH, St, PS, WL and ED nnes that penetrate the containment bourdary per NRC Generte Letter 96 06. The concem is that elevated containment lernperature tonowing a DBA will heat up the fluid trapped between the containmort isolaton valves and could create pressures t@ enough to aff sci containmord integrity via bypass leakage. I l PRELIMINARY SCREEt'.NG YES tlO
- 1. Does the proposed change represent a etwgo to the Pland lachnical Spedficasons? @
2 ts an Urvevtewed Safety Question known to be assodated with the subject change? O @ NOT E: If 'YES' to o!ther quescons 1 or 2 refer Ic OPOP05 ZNEC4 I Does the proposed Change represent i
- 3. A change to only correct a typograpNeal, editortalor drafting error? O Q
- 4. A charge which is identica, to and addressed in its entirety by an existing approvod iOCFR50 69 @
ScreenirgUSOE of NRC approved bcenshg submittal?
- 5. A spare or replacement parttornponent change with an equivalent parVcomponont?
(See Sectm 2.3 for a definiton of equivalerd) O @ 6 A wtguration charge witNn edsting design specifications? O 8 ff all answers to the above questions are 'NO' pertorm the final screering and mat MA in the approval blocks below, if the answer to a oestion (3) throuDb (C)is 'YES* a Anal screenlig is rot necessary. Sign approval dow and dscard pages 2 and 3. Provue a justification and references If any of items (3) through (6)is a.'mvored 'YES*. The UFSAR requires reAston per OPOP05-ZN 00047 @ The Condition Report Action for changing the UFSAR is . WA , Prepared by' KA originator Daw Approved by. PFA ovalified Revtewer cea pd j
i ces% do- m cw m OPGP05-ZA-0002 Rev. 5 10CI'R50.59 Evaluations Form 1 10CFR50.59 Screening Form Page 2 of 3 Originating Docornant No. CREE 961215127 Rev. fJo 0 FINAL SCREENING in res se b the questions tielow, if the charge IrwoNos sornething that is ret desettbod in t% SAR and is rot part of tre licensbg basis. ths * - . is approotste. However, this dedslon rnust t4 dearly documented vdih asevate lectrice justificebon for each Ques 5on and the sections reviewed of a341caNo documents and appncaNo &Wtbutes redewed should be Inchcate3. The 6stng of attritzAes ar.J documents for 10CFR50.59 screerung can t,e found h Addendum 6. hteroscirdine Coordnabon Required? @ YES O NO If *yes', otitab appropriate concurrence. O niskendne:iastiity^netysis O TharrneiHydroutice O neoctortror-
- 0A O Mech O Elect O to O other YES NO
- 1. Does the tut 8ect of tNs review Irwolve a change to tne ladity as described h the Safety Analysis @
Report? A redow of the UFSAR Sections 3.1. 3.8. and 6.2 was portrormed. The porbons of the RH. SI. PS ans ED lines that penetrate the containment are part of the Containment isolation Systern (CIS). The design functon of hose cornponents is to ensure that the piping penetrating the contahrnont is prodded with Isolation barriers so that no single actNo fatore can result h alther a bss of iso (abon or excessNe ioakago. Tree affected piping and components are designed in accordarte Wth the requirements of ASME Section lit, Subsection NC for Class 2. The egosure of these portor's of the CIS pipmg and nts to tw conservalvoly postulated increased pressure will resutt in stresses that are h compf.ance with the ASME code r ements and form the basis for assuring that the piping system is capatie of portorming its design function under postulated plant condition. T herefore, the incrased pressure does hot consstute a change to the facility as described in the UFSAR. I i I
- 2. Doos the subject of this review inMvo a chanDe to the procadures as described in the Safety Analysis Report? Refer to OPAPO1 ZA 0103.
O @. l This evaluation does not propose a change to any procedure described h the UFSAR. I D h
I i fid2G %~ WlGI- 95 OPGP05-ZA-0002 Rcv. 5 10CFR50.59 Evaluations
. Form I 100FR50.59 Screening Form Page 3 of 3 Originathg Document No. CREE 901215127 Hev, No. 0 YES NO 3 Does te tuttoct of Uds feview prdpose the cordset of test or experirnents hot described h the Safety Anatysts Report?
O @. I 1his evaluabon does not prcpose a test or emorimert I i
- 4. Does the poposed charge aff ect cordtions r%ses assumed in Vie Safety Anafysis Report or safety-related funcDons of eQuipmerWsystems, even though the proposed change does not ental any physkal O B change in existing structures, systems, or procedures as desctfbed h the SAR7 The subject et this evalua5on does not afixt the resuftarW stresses h the pipe, penetration, vahre ends when sutdoctallo tio cornervatve paak pressure armtried These w, vrieris nave been determined to have resuhant stresses wNch are within the ASME CofJe eBowable . Therefore, the structural hiegrtty of the pipinD. compononts and the penetrations le not affected ard cordicos or bases assumed in the UFSAR related to these penettsDons are not affected,
~.
If any answer is afannaUve, complete the screening iorm and perform an Unreviewed Safety Question Evaluation. It an answers are negative, no Unreviewed Safety Ovesuon Evaluaton is required. The UFSAR requires revision per OPOP05-ZN-00047 O E The Cond%n Report Actkm for changing the UFSAR is tfA. Prepare by- Quoc Huynh/ uoc w, hd 8177 Date Approved by; K. D. House / , ,m .g[97 e ouaued Re*wer oeie l A/b 1 1
ATTACHMENT 3 Page1of4 CROSS-REFERENCE TABLE CASE NO. DATA DRAWINGS SUBMITTED CASE # 1: PIPING: P&ID # 5N129F05016#1 Pipe Size: 3/4", Schedule 160S ISO # 5M369 PSI 272 Sht. A01 Line No. 3/4"SI1321BB2: Pipe Thickness: 0.219" ISO # 5C362 PSI 472 Sht. A05 Inboard Valve No. FV3970 Pipe length: 23 feet Valves FV3970/3971 Dwg # 0220(1)-00119-WN Outboard Valve No. FV3971 Pipe Material: S.S. SA312 TP304 or 304L INSULATION:
- Insulation Thickness: None Insulation Type: None VALVE # AISI-FV-3971:
Actual Benchset Pressure: 23 psig Benchset Pressure used: 41 psig CASE # 2: PIPE: P&ID # 5Z329Z00045#1. P pe Size: 1", Schedule 160S ISO # 2C369PPS485 Sht. A01 Line No.1"PS1005BB2 Pipe Thickness: 0.25" ISO # 5M369PPS285 Sht. A01 Inboard Valve No. FV4450 Pipe Length: 15 feet Valve FV4452 Dwg # 4026-01146-WV Outboard Valve No. FV4452 Pipe Material: S.S. SA312 TP304 or 304L Valve FV4450 Dwg # 4407-00019-RZ INSULATION: Valve FV4450 Dwg # 4407-00009-RZ Insulation Thickness: 2.5" Valve FV4450A Dwg # 40504)0007-TG Insulation Type: Nukon Blanket Insulation Valve FV4450A Dwg # 4050-01001-TG VALVE # CIPS-FV-4452: Valve PS0015 Dwg # 4032-01076-KT Actual Benchset Pressure: 24 psig Benchset Pressure used: 27 psig
2of4 I i. CASE # 3: I i>IPE: P&ID # x.329ZUOGtS#1 Pipe Size: 1", Schedule 160S P&ID # SL49Z4750l#1 i Line No.1"PS1002BB2 Pipe'Ibickness: 0.25" ISO # 2C369PPS485 Sht. A01 Inboard Valve No. FV4454 Pipe Length: 21 feet ISO # SM369PPS285 Sht. A01 Inboard Valve No. FV4455 Pipe Material: S.S. SA312 TP30% or 30*L ISO # SM369 PAP 287 Sht. A01 Outboard Valve No. FV4456 INSULATION: Valve FV4456 Dwg # 4026-0114&DWV Outboard Valve No. FV2455A Insulation Thickness: 2.5" Valves FV4454A/4455A Dwg # 405040007-TG Insulation Type: Nukon Blanket Insulation Valves FV4434A/4455A Dwg # 405041001-TG VALVE # B1Pc ".' 4456: Valves FV4454/4455/2455A Dwg # 4407-00019-RZ Actual Benchset Press ae. 24 psig Valves FV4454/4455/2455A Dwg # 4407-00009-RZ Benchset Pressure used:27 psig Valve TS0011 Dwg # 4032-01076-KT
- 1-i CASE # 4: PIPE: P&ID # SZ329Z00045#1 Size: 1", Schedule 40S P&ID # 5Z549Z4750l#1 Line No.1"PS1003UB2 Pipe Thickness: 0.133" ISO # 2C369PPS485 Sht. A01 l Inboard Valve No. FV4823 Pipe Length: 19 feet ISO # SM369PPS285 Sht. A01 Outboard Valve No. FV4461 Pipe Material: S.S. S A312 TP304 or 30*L ISO # SM369 PAP 287 Sht. A01 I Outboard Valve No. FV2454 INSULATION: Valve FV4461 Drawing # 4026-0! 145-WV Insulation Thickness: 1" Valves FV4823/2454 Dwg # 4407-00013-RZ Insulation Type: Nukon Blanket Insulation Valves FV4823/2454 Dwg # 4407-00018-RZ VALVE # CIPS-FV-4461: Valve PS0008 Dwg # 4032-01076-KT Actual Benchset Pressure- 10 psig j Benchset Pressure used: 15 psig i
1 'I
3of4 CASE # 5: PIPE: PalD 95Z329Z00(M5#1 Pipe Size: I", Schedula 40S ISO # 2C369PPS485 Sht A01 Line No.1"PS1004UB2 Pipe Dickness: 0.133" - ISO # SM369PPS285 Sht. A01 Inboard Valve No. FV4824 Pipe Length- 21 feet Valve FV4466 Dwg # 4026-01147-WV Outboard Valve No. FV4466 Pipe Material: S.S. SA312 TP304 or 304L Valve FV4824 Dwg # 4407-00013-RZ , INSULATION:_ Valve FV4824 Dwg # 4407 00018-RZ ' Insulation *Ibickness- 1" Valve PS0001 Du g # 4032-00016-KT i Insulation Type: Nukon Blanket Insulation VALVE # BIPS-FV-4466:- Actual Benchset Pressure: 16 psig Benchset Pressure used: 16 psig j- CASE # 6: PIPE: P&ID # 5Q069fV5030#1 Pipe Size- 1",2" and 3", Schedule 40S P&ID # 5Z549Z47501#1 Line No. 2"ED1124SB2 Pipe Thickness- 0.133" 0.154" and 0.216" ISO # SM369 PED 226 Sht. A29 Inboard Valve No. MOV0064 Pipe length:4 ft (l"),10 ft (2") and 7 ft (3") ISO # SM361 PED 226 Sht.32 Outboard Valve No. FV7800 Pipe Material: S.S. SA312 TP304 sr 304L ISO # 3C369 PED 426 Sht.05 ; Outboard Valve No. FV2453 INSULATION: ISO # SM369 PAP 287 Sht. AOI Insulation Thickness- 1" Valve MOV0064 Dwg # 4038-01149-AD Insulation Type: Nukon Blanket Insulation Valve FV7P00 Dwg # 4026-01144-WV VALVE # A1ED-FV-7900: Valve ED0056 Dwg # 6373-00023-NY Actual Benchset Pressure: 13.22 psig Benchset Pressure used- 29 psig i i 1- )
Occa CASE # 7 AND 8 PIPE: P&ID # 5R169F20000#1 Size: 8", Schedule 40S ISO # 2M369PRH259 Sht.02 Line No. 8~RH1204KB2 Pipe Thickness- 0.322" ISO # 2C369PRH459 Sht. 02 Inboard Valve No. XRH0063B Pipe Length- 15 feet each ISO # 2C369PRH459 Sht.05 j 4 Outboard Valve # XRH0064B Pipe Material: S.S. SA312 TP3M or 304L Valves XRH0063BA)09B Dwg # 0220(1)-00097-WN 1 INSULATION: 4 Line No. 8"RH1304KB2 Insulation Thickness: 1.5' Inboard Valve No. XRH0063C Insulation Type: Nukon Blanket Insulation Outboard Valve # XRH0064C l CASE # 9: PIPE: P&ID # 5Z329Z00045#1 ' Pipe Size: I", Schedule 160S ISO # 2C369PPS485 Sht A01 Line No.1"PS1016BB2 Pipe Thickness: 0.25" ISO # SM369PPS285 Sht. A01 Inboard Valve No. FV4451 Pipe Length- 12 feet Valve FV4451B Dwg # 440940177-VT Outboard Valve No. FV4451B Pipe Material: S.S. SA312 TP304 or 304L Valve FV445i Dwg # 4407-00019-RZ INSULATION: Valve FV4451 Dwg # 4407 00009-RZ Insulation Thickness: 2.5' Valve FV4451 A Dwg # 4050-00007-TG Insulation Type: Nukon Blanket Insulation Valve FV4451 A Dwg # 4050-01001-TG Valve PS0041 Dwg # 4032-01076-KT CASE # 10: PIPE: P&ID # 5R309R)5022#1 Size: 3~, Schedule 40S ISO # SM369P%LT Sht. G8 ; Line No. 3"WL1000RB2- PipeThickness: 0.216" ISO # SC369P%1477 Sht.01
- Inboard Valve No. MOV0312 Pipe Material
- S.S. SA312 TP316 or 316L Valve MOV0312 Dwg # 4038-01135-AD Outboard Valve No. FV4913 Pipe length- 17 feet Valve FV4913 Dwg # 4026-01143-WV INSULATION: Valve WLO636 Dwg # 4032-0:076-lU 1hickness: 1" Insulation Type- Nukon Blanket Insulation
ATTACIIMENT 4 DRAWINGS FOR PIPING AND VALVES
OVERSIZE DOCUMENT - PAGE(S) PULLED . SEE APERTURE CARD FILES APERTURE CARO / PAPER COPY AVAllABLE THROUGH NRC File CENTER NUMBER OF OVERSIZE PAGES FILMED ON APERTURE CARDIS) ACCESSION NUMBERS OF OVERSIZE PAGES: 1, 0 [
\yII i" ~
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