ML20083C013
| ML20083C013 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 12/16/1983 |
| From: | Kemper J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| 8031-P144-98-2S, NUDOCS 8312220058 | |
| Download: ML20083C013 (10) | |
Text
.
PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 1881 -1981 PHILADELPHIA. PA.19101 JOPNS.KEMPER
_ r.3 l!!"'fL _
DEC 161983 Mr. A. Schwencer, Chief Licensing Branch No. 2 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C. 20555
Subject:
Limerick Generating Station, Units 1 and 2 Information for Equipment Qualification Branch (EQB)
References:
1.
Letter, E. J. Bradley to A. Schwencer, dated July 7, 1983.
2.
Telecon, between L. Kintner, USNRC, and J. T. Robb, PECO on December 6, 1983.
3.
Purge and Vent Valve Operability Qualification Analysis, Repvrt No. 6-06-83, Prepared for Philadelphia Electric Co., Limerick Generating Station Unit 1, Clow Corporation, June 1983.
Enclosure:
Bechtel Supplier Document No. 8031-P144-98-2S, Page Changes and Revisions.
File:
GOVT 1-1 (NRC)
Dear Mr. Schwencer:
Reference 1 transmitted the reference 3 report to you.
The reference 2 telecon requested additional information concerning the reference 3 report.
The enclosure provides the requested additional information.
l Sincerely, l
Shh 1
JTR/gra/1212831100 Attachment Copy to:
See Attached Service List 7
i l
9312220058 831216 i
A
cc: Judge Lawrence Brenner (w/o enclosure)
Judge Peter A. Morris (w/o enclosure)
Judge Richard F. Cole (w/o enclosure)
Tre" B. Conner, Jr., Esq.
(w/o enclosure)
Ann P. Hodgdon, Esq.
(w/o enclosure)
Mr. Frank R. Itznano (w/o enclosure)
Mr. Robert L. Anthony (w/o enclosure)
Mr. Marvin I. Irwis (w/o enclosure)
Ms. Phyllis Zitzer (w/o enclosure)
I Charles W. Elliott, Esq.
(w/o enclosure)
Zori G. Ferkin, Esq.
(w/o enclosure)
Mr. Thmias Gerusky (w/o enclosure)
Director, Pennsylvania Dnergency ManagaTient Agency (w/o enclosure)
Mr. Steven P. Hershey (w/o enclosure)
Angus Iove, Esq.
(w/o enclosure)
Mr. Joseph H. White, III (w/o enclosure)
David Wersan, Esq.
(w/o enclosure)
Ibbert J. Sugarman, Esq.
(w/o enclosure)
Martha W. Bush, Esq.
(w/o enclosure)
Spence W. Perry, Esq.
(w/o enclosure)
Jay M. Gutierrez, Esq.
(w/o enclosure) l Atanic Safety and Licensing Appeal Board (w/o enclosure)
Atanic Safety and Licensing Board Panel (w/o enclosure)
Docket and Service Section (w/o enclosure) 4 4
1 1
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NOTE (FOR 8ECHTEL USE ONLY)
SUPPL ~EMENT e THE ATTACHED PAGES REPLACE ONLY PART OF THE PREVIOUSLY SUS-MITTED DOCUMENT.
e THE STATUS CODE ASSIGNED APPLIES TO THE ENTIRE DOCUMENT PRE-VIOUSLY SUBMITTED As REVISED BYTHE ATTACHED PAGES.
- RECIPIENTS OF THIS SUPPLEMENT MUST NOT DISCARD THE PREVIOUS SUBMITTAL OF THE DOCUMENT. JOBSITE AND OTHER RECIPIENTS MUST.
ATTACH THIS SUPPLEMENT IN FRONT OF THE PREVIOUS SUBMITTAL. OR INSERT THESE PAGES IN THE APPROPRIATE LOCATIONS REPLACING THE SUPERSEDED PAGES.
SEP 061983 BECHTEL POWER CORPORATION JDB NO. 8031 SUPPLIER DOCUMENTSTATUS STAMP 1[ Work may proceed.
2 O Submit final document. Work may proceed.
3 D Revise and resubmit. Work may proceed subject to resolution of indicated comments.
4 O Revia and resubmit. Work may not proceed.
5 O Permission to proceed not required.
j
[
l Permission to proceed does not constitute ac-g
- splance or approval of design details, calcu-sations, analyses, test methods, or materials h
denloped or selected ty the supplier, and does not relien supplier trom full compliance
]
with contractual obligations or releau any h
- holds"placed on the contract, A
C E
J M
N P,
O REVIEWED h
k ROUTE I
COPY
/
N 'b T!T, 8Y DATE M
PHILADELPHIA LIMERICK STATION ELECTRIC CO.
UNITS 1 & 2 SEP 091983 FINAL DRAWING
:. =
.- = =
\\
REV.
REV.
REV.
CHECKED Q.A.
DESCRIPTION OF CHANGES N0.
DATE BY SY BY AND PAGES REVISED 0
p Original Issue
<Pg. 34 - removed decimal point A
8/18/83 )M /
Pg. 41 - added opening and closing times Pg. 59 - added torque switch trip, torque applied to valve, and safety factor values.
Pg. 60 - added all opening and closing times and removed note "will be furnished at a later date" 4-Pg.114 - added torque switch trip torque Pa.116 - added measured leakaae va?ues j
A i
. - _ _ _ _ _ _ _ _ _.. ~. _, _, _ __. _ _ _ _ _ _._. _ _.._. __ _. _ ___ _ _ -. _ _ _ _ _ _ _ _ _
Pago 34 2.2.3.2 Pneumatic Actuator Output Torques The torque plots provided in this section represent the calculated output torque of the actuators for the spring and various supply pressures shown. The only listed guaranteed output torque that Bettis provides is for the yoke arm at 0 degrees and the spring fully extended. The ratio of guaranteed torque to calculated torque is shown below for the three actuator sizes used.
Table 2 Actuator Guaranteed Torque / Calculated Model Toraue NT312-SR5 5,510/5,810 95 NT820-SR5 63,300/62.160 102 NT820-SR4 95,500/93,098 103 The graphs which follow show how the torque output varies for the pressure stroke as a function of supply pressure.
It can also be seen that the spring output torque is not a function of supply pressure. Tha graphs also demonstrate that the output torque (pressure on spring stroke) is a function of yoke position.
The graphs provided are based on the numerical data provided from the actuator manufacturer.
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Page 41 2.2.3.3 Operating Time Bench Test - The following is a summary of the operating times recorded during the operational test performed on each valve.
The tests were performed using a 100 psig air supply with a maximum flow rate of approximately 70 SCFM. There was no flow through the valve during this test.
TABLE 3 Valve Bettis Opening Closing Mark no.
Size Actuator Time
- Time of Valve (inch)
Model No.
Sec.
Sec.
A0-57-121 6
NT312-SR5 3.4 3.3 (X)
A0-57-131 6
2.7 2.6 NT-820-SR5 22.1 2.5 A0-57-104 18 A0-57-114 24 NT-820-SR4 19.1 2.0 Q9
(
A0-57-123 24 26.9 1.8 A0-57-124 24 26.1 1.7
- 0pening times were restricted by Clow test set up (Air hose used had approximately 3/8" I.D.)
l
~
A For a description of operating time for valve Serial No. 80-8170-f 03-01 during a LOCA and S.eismic Simulation Test refer to the i
Vought Corp. Report (reference 7.0 ;). The Vought Test demonstrated when there was flow through the valve, the aerodynamic torque aided closure thus reducing closing time.
l
Pags 59 i
The inertial effects cannot be determined empirically, since the system rigidity plays an important factor. A torque magnification of 1 to 3 times the torque at which the torque switch (es) trips, may be produced. It is therefore, necessary to either design the entire system to withstand this higher torque output, or adjust the torque switch (es) to a lower setting so the
, net torque produced will not exceed the required amount.
Design and measured actuator output torques are shown in the table below. Subsequent sections describe how these torques relates to safe operation of the subject valves.
TABLE 5
ELECTRIC ACTUATOR TORQUE CHARACTERISTICS Torque Torque Switch Torque Torque To Fail
. Valve Design Trip Switch Appliedi Weakest *
, Size Torque Torque Setting To Valve Component Safety
-(inches) in-lb Actuator Model (in-lb) Required (in-1b)
(Key)
Factor
- 4 2,112 SMB-00-16-HIBC
+
1.0
+
7,594
+
6 7.800 SMB-00-10-H2BC 5,600 1.5 8.350 27,585 3.3-18 63,120 SMB-1-60-H5BC 34,000 1.0 86,000 207,563 2.41 24 135,000 SMB-2-60-H5BC 55,000 1.0 169,000 362,496 2.15 (Based cn key machanical properties measured by test. Valve operator compatibility forms supplied separately indicate failure point for key based on mechanical properties lower than actually used.
- At normal voltage 460 AC (higher than design or torque switch trip due to inertia).
Hitll be furnished at a later date a
...m m
m.
- m..
l Pag 2 60 2.3.3.3 Operating Time Bench Test - The following is a summary of the operating times recorded during the operational test perfomed on each valve.
The tests were performed using a minimum and normal voltage supply. There was no flow through the valve during this test.
TABLE 6 Valve Limitorque Opening Closing Mark No.
Size Actuator Time Time of Valve (inch)
Model No.
Sec.
Sec.
Vol tage Voltage Min. Norm.
Min.
Norm.
MO-57-161 4
SMB-00-10-H1BC 5.6 5.5 5.7 5.7 MO-57-163 4
SMB-00-10-H1BC 5.5 5.3 5.$
5.5
(
MO-57-109 6
SMB-00-10-H2BC 5.3 5.1 5.4 5.2 MO-57-162 6
SMB-00-10-H2BC 5.3 5.2 5.4 5.3
~
MO-57-164 6
SMB-00-10-H2BC 5.2 4.8 5.1 5.0 M0-57-112 18 SMB-1-60-H5BC 4.6 4.6
'5.1 5.2 M0-57-115-24 SMB-2-60-H5BC 4.1 4.1 4.9 4.8 MO-57-135 24 SMB-2-60-H5BC 4.0 4.0 4.7 4.7 MO-57-147, 24 SMB-2-60-H5BC 4.3 4.3 5.0 4.9 l
e se b
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~
Page 114 For valves M0-57-109,161,162,163,164 for LOCA flow conditions, it can be seen in Tables 29, 27, 28, 30 that all aero-dynamic torques are in the closed direction. Due to the use of an electric actuator, this torque will not help the valve close.
For valves M0-57-112,115,135,147, aerodynamic torques for the first 50 from full open resist closure. For these units the closed torque switch trip point must be greater than the maximum aerodynamic torque resisting closure.
TABLE 37 Electric Actuated Valve Torques Torque (in-lb)
Valve Valve Design Size Valve No.
Torque 1
2 3
4 5
(
4" M0-57-161 2,112 none none req'd 740 7,594 15,600 740 7,594 15,600 4"
M0-57-163 2.112 none none req'd 6"
M0-57-109 7.800 none none req'd 2,400 27,585 26,400 6"
MO-57-162 7,800 none none req'd 2,400 27,,585 26,400 6"
M0-57-164 7,800 none none req'd 2,400 27,585 26,400 18" MO-57-112 63.300 2,127 34,000 48,450 207,563 235,000 24" MO-57-115 135,000 11,550 55,000
-97,075 362,496 235.000 Q 24" MO-57-13s 135,000 11,550 55,000 97,075 362,496 235,000 Q 24" MO-57-147 135,000 11,550 55,000 97,075 362,496 235,000 Q 1 Worst case closure resisting aerodynamic torque 2 Torque switch trip torque (Actuator torque used to overcome aerodynamic torque) 3 Maximum aerodynamic torque 4 Torque to yield actuator key 5 Actuator safe structural torque
(
I
_.__...._,___..m.
7 Page 116 o
[
t TABLE 38 VALVE SEALING CHARACTERISTICS LEAKAGE (Bubbles / min)*
VALVE.
Pressurized Side VALVE SIZE TEST PRESSURE Shaft Clamp Ring MARK NO.
(IN.)
PSIG Side Side O
N0-57-161 4
5, 25, & 55
~
0 MO-57-163 4
5, 25, & 55 0
0 MO-57-109 6
5, 25, & 55 0
0
(!)
M0-57-162 6
5, 25, & 55 0
0 M0-57-164 6
5, 25, & 55 0
0 A0-57-121 6
5, 25, & 55 0
1 (9
A0-57-131 6
5, 25, & 55 0
0 M0-57-112 18 5, 25, & 55 1
0 GD A0-57-104 18 5, 25, & 55 0
0 M0-57-115 24 5, 25, & 55 0
1.5 MO-57-135 24 5, 25, & 55 4
0 MO-57-147 24 5, 25, & 55 3.5 0
A0-57-114 24 5, 25, & 55 0
3 A0-57-123 24 5, 25, & 55 0
0 A0-57-124 24 5, 25, & 55 0
0
- Worst case pressure o
S e
4 u
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