ML18047A450

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EPRI Justification Rept
ML18047A450
Person / Time
Site: Palisades Entergy icon.png
Issue date: 11/25/1981
From: Kramer E, Merrill P, Jeffrey Reed
MCGRAW-EDISON CO.
To:
Shared Package
ML18047A442 List:
References
1125, NUDOCS 8207160345
Download: ML18047A450 (7)
v • d • e


Text

EPRI JUSTIFICATION REPORT REPORT NUMBER 1125*

DATE: __

/._~_-_1..._7_-_.i".._/ ____ _

P.K*. MERRILL REVIEWED BY: /,! l/.~

---m~~~~~

DATE:

//.- f?-tl.

J.N. REED MASONE!LAN DIVISION OF McGRAW EDISON

( 8207160345 820404

\\

PDR ADOCK 05000255

' P PDR

!NDEX Index.. *. *.. * * * * " * *. *

  • e *
  • 0 * *.
  • e *
  • Ini:roductioa..

Descrtptiou of Basic Model *

  • 0.

Selected Test Valve.

0.. * *

  • 0 0

Ocsilt' Variations Betweeu PWB. Plaut Valves and. Seleeted Test Valves.

Couclusiou *... ec**O&e

  • e 0

Q 0

G 0

Assembly D~awing A8425 * * * * * * * * * *

  • Parts List A8S29
  • Doc 3269A ll-l.3-81 fl * *..

-l-0 PAGc: NO l

2 2

3 4

s

1.

JUSTIFICATION REPORT Introduction This report has been prepared for the Electric Power Research Institute, EPR!,

by Masoneilan Division of McGraw Edison at their request.

This report will be integrated with EPR!'s Valve Selection/Justification Report.

The information released in this report is not considered proprietary, therefore there is no restriction placed on its use within the confines of the EPRI/PWR Safety and. Relief Valve-Test Program Report.

The valves in the United States subject to this test program were sold only to Westinghouse and were to be installed: at Westinghouse project sites.

Masoneilan has not been provided information to where specific valve serial numbers have been sent. This information should be available through Westinghouse.

All valves used on Power Operated Relief Valve, PORV, applications in the United States were Masoneilan Model No. 38-20721 or 38-20771.

All valves are 2... size.

Identification of the sites in the United States at which Masoneilan PORV's are located are as follows:

UTILITY Duquesne Light Indiana & Michigan Electric Pacific Gas & Electric Tennessee Valley Authority Virginia Electric & Power Wisconsin Public Service PLANT

- Beaver Valley 1

. - Donald Cook 1 & 2

- Diablo Canyon 1 & 2

- Sequoyah 1

- North Anna 1 & 2

- Kewaunee MODEL NO.

38-20721 38-20721 38-20771 38-20721 38-20771 38-20721

2. Description of Basic Model The model numbers 38-20771 and 38-20721 valves are top guided single seat ~lobe valves with pneumatic actuators. The valve plug is lifted off the seat by pneumatically loading the actuator.

Positive closure is provided by the spring return or failure mode of the actuator. The valve plug is top guided in the valve bonnet.

Adequate guiding area has been provided in the bonnet to prevent instability of the plug.

The seat ring retainer provides easy and quick access to the seat ring and seat ring gasket for removal and maintenance.

The model numbers 38-20771 and 38-20721 are the only models installed in the U.S.

The only difference is the valve plug used in model number 38-20771 uses a linear control contour and in model number 38-20721 has equal percentage contour.

Critical dimensions that affect the valves shut-off, flow capacity, stability, and speed remain unchanged.

This difference affects only the flow characteristics of modulating valves thus has no significant impact to the EPRI test.

The flow is from under the valve body bridge i.e., the flow forces the valve plug open.

The actuator selected has sufficient spring thrust to dVercome these flow and pressure forces.

Reference drawing numbers A842S ~nd A8529 *

3.

Selected Test Valve

!he valve select:ed for test: was secured from. the Tennessee Valley Authorit:y from. the Sequoyah Site* This valve is essentially the same as those at other sites..

4. Oesisp. Var1atious !etveeu PW'&. Plane Valves and Selected Test Valves As seated in the previous paragraphs there are no siguif icane design variations thac would affect the !PR.I tesc results or valve perf ormauce between the test valve and ochers in the field.

S..

Cone lus ion In summary the valve selected by !PRI is r:ept:"esentaeivei eo those cul'?'eutly in use 1J:i. the POB.V applications ia.

the United States.

~.IX.\\. CO.. 19C. IOHI 25 BACK SEAT CONSTRUCTION PLUG SHOWN IN UP POSITION t

~.B~'T CIA

~.'7<<:.S--

'C:..'lD~ DIA

'C:..G:.e.~--

'3.SO DIA Jt j

DE.\\AIL OF BUTT WE.LD ENO SIDE VIEW NATIONAL ACME D-2400X LIMIT SWITCH MOUNTING UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN.

INCHES AND MILLIMETERS A~D ARE AFTER PLATING INCHES ANGLES

~x, I

  • '~.1 "~~0 I

+/- f MILLIMETERS x

x.x x,xx

t 3
t 0,8
t0.25 OIJ..f.NSIONINli SYSTEM i.-INCHES (MM)_,

DRAWN REVISIONS SYM.

DESCRIPTION

1. REWORK
2. SCRAP
3. USE AS IS
4. RECORD CHANGE C REQ NO. 3731 4

2*3*"71 REFERENC-E'.

CERTIFIED DRAWING NO. CPHB-55-C W \\THOUT AIR SET CE RllFIED DRAWINCo NO.C.PI 71-C.

WITH Alf\\Stl' 2."

3 IA58RGP A8529-D

-z!'

3* IA 58 RGP A 8"'1712>-D TA.G NO.

PARTS LIST WORTHINGTON CONTROLS COMPANY NORWOOD, MASSACHUSETTS MONTEBELLO, CALIFORNIA

NO.

PC; Ml.

PART NO.

NAME REQ.

,.. 010224--008-105 SPRING BARREL CAP 2

010191--002-117 BALL RACE 010186--058-105 UPPER SPRING BUTTON 010220--033--002 SPRING BARREL 1

971512--020-110 NUT

.1 010285--012-002 D IAPHRAG\\1 PLATE

. 1 1* 010275--025-686 DIAPHRAGM 8

010217-024-105 STOP. PLATE 9 II 010217-004--002 DIAfHRA(;'.I WASHER 10 010700--006-100 YOKE 11 010213-006-317 PACKING BOX 12 010209-013-410 PACKING BOX GLAND 1

13 971159--008-110 CAP SCREW 4

14 971335--002-250 DRIVE SCREW 2

15 983750-001-153

.SER I AL PLATE 16* 011156-134-780 PLUG STEM 17 010102-009-780 PACKING BOX GLAND 18 010106--001-026 DRIVE NUT 20 007905-008-066 BODY STUD 8

21* 971342-027-780 PIN 22 013902-009-780 SEAT RING RETAINER 23 013454-658-780 BODY 24* 010234-608-780 SEAT RING 25* 013434-IOJ-780 PLUG

26. 009191-431-801 SEAT RING JASKET 27° 010110-237-780 BUSHING 28* 009191-170-801 BODY GASKET 29*

013044-618-780 BONNET 1

30 971511-068--010

~T 8

31

  • 005675-503-779 PACKING 10 33*

971490-003-177 PACKING BOX STUD 2

34 010105--001-780 PACK I NG BOX FLANGE 1

35 971520-005-158 PACKING BOX NUT 2

sa3676--003-SOO INDICATOR PLATE 1

971305-015-250 MACHINE SCREW 3

01040&221-lSo POINTER 010408-384-117 SPLIT CLAMP

40. 001904--004-426 PACKING BOX GASKET
41. 971919-007-916 STRING PACK ING 42* 010175-143-152 ACTUATOR STEM 430 001904-628-800 YOKE GASKET 1

44 971161-003-110 CAP SCREW 12 45 010310-004-105 LOWER DIAPHRAG\\1 CASE 46 971511--012-110 NUT 40 47 971004-017-110 OIAPHRAQ.I CASE CAP SCREW 40 48 010186-059-105 LOWER SPRING BUTTON 1

49.. 010309-082-105 UPPER DIAPHRAG\\1 CASE 50 000049-001-130 SPRING 51 971700-027-250 BALL & RETAINER 52 010199-019-021 ADJUST ING SCREW I

53 971264-008-110 MACHINE SCREW 8

54 008149-311-105 UPPER MOUNTING BRACKET I

55 971002-007-110 CAP SCREW 4

56 971961-005-888 SWITCH 2

57 009790-041-207 TAKE OFF BUTTON 2

58 009790--003-207 ADAPTER 1

59 971514-001-110 LOCK NUT 2

60 971268--012-110 MACHINE SCREW 61 051425--010--026 STEM CONNECTOR 62 051332--018-150!.

CLAMP ROO 63 971513--006-110 LOCK NUT 64 008149-C!.95-105 LOWER t.()UNT ING aRACl<ET MATERIAL SIZE ASTM A283 GR D USS MACH 5 ASTM A2S3 GR D SAE 1020 ASTM A307 1" - 14UNS SAE 1020 NEOPRENE & RAYON FABlUC ASTN A283 GR D SAE 1020 ASTM A216 GR lltB WAKEF I ELD ALLOY 41 ASTM B16 ASTM A307 1/2 - 13UNC X 1,75 GENERAL AUSTENITIC ST.ST.

ASTM A167 N 304 HAYNES ALLOY 25 ASTM A276 TY 316 SAE 1117 ASTM A 193 GR B7 7/8 - 9UNC X 3.38 HAYNES ALLOY 25 ASlM A461 GR 630 C0~0\\110\\...1 H-900 ASTM A351 GR CF 8M ASTM A276 TY 316 & N0.6 STELLITE ASTM A276 TY 316 & ~0.6 STELLITE 304 ST.ST. WITH ASBESTOS 2.75 o.o. x 2.38 1.0. x.125 NO. 6 STELL ITE 304 ST.ST. WITH ASBESTOS 3.38 O,D. X 2.94 I.D. X.125 ASlM A351 GR CF 8M ASTM A194 GR 2H 7/8" - 9UNC ASBESTOS & GRAPHITE ASlM A193 GR 88 1/2 - 13UNC X 2.00 ASTM A235 CL C ASTM A194 GR 8 (TUFFTRIDED) 1/2 - 13UNC ALUMINUM GEN. AUSTENITIC ST.ST.

A~TM A \\(0'7 TY '304 USS MACH ASTM B152 TYP ETP 2.50 O.D. X 2.12 I.D. X.020 ASBESTOS & GRAPH I TE

.19 DIA X 16.00 ASTM A582. TY 303 ASBESTOS FISER.

7.12 0.D. X 5.62 I.D. x.031 ASTM A307 3/8 -

16UNC X.75 ASTM A283 GR D ASThl A307 3/8 -

16UNC ASTM A307 3/8 -

16UNC X 1.25 ASlM A283 GR D ASTM A283 GR 0 ASlM A229 GEN

ASTM A108 GR B 1113 ASTM A307 8 -

32UNC X.56 ASlM A293 GR D ASlM A307 5/16 -

18UNC X,62 PURCHASED ASSEMBLY ASTM Al93 GR 86 ASTM Al93 GR 86 ASlM A307 1/4 - 28UNF ASTM A307 12 - 24UNC X.81 SAE 1117 ASTM A582 TY 303 ASlM A307 5/16 -

IBUNC ASTM A283 GR D

  • CONTAINED IN ASSEMBLY 013044-623-999 A

CONTAINED IN.4SSEMBLY 010309-083-999 8

CONTAINED IN ASSEMBLY 0101'75-142-999 e RECOM'llENDED SPARE PARTS REMACH INE YOKE PER 010405-008-A

~TES:

1.

VALVE STROKE ~ 1.50 INCHES

2.

MAXIMUM TEMPERATURE - 650 o F

3.

AIR PRESSURE IN THE DIAPHRAG.I CHAMBER MUST NOT EXCEED 5 5 PS I G TO PREVENT COMPONENT D.AMAGE

4.

REQUIRED AIR PRESSURE INPUT TO BEGIN LIFT OF PLUG FROM MAIN SEAT - 29 PSIG

5. MAXIMUM A IR TO OPERATE VALVE 55 PSIG

<D. Vl::.L*vE ":...,; = 4<D

7. REQUIRED AIR PRESSURE. INPUT FOR SHUT OFF OF BACKSEAT =55 PSIG.

UNLESS OTHERWISE SPECIFIED D1MEN5ll)NS ARE IN INCH[S ANIJ MILLIMETf.RS AND ARE AFTER PLATING TOLERANCES ON:

DIMENSIONING SYSTEM j.-rNCHES (MM)_,

!1111llED HOLE TOLERANClS INCHlS ANGLES PER AND10387

.x

!.xx

[.xxx I

+/-.1 ! +/-.03

+/-.010 +/-2°30' FILLET RADII __ *----

BREAK SHARP EDGES_

MILLIMETERS DRAWN CHECKED MATERIAL REVISIONS SYM.

DESCRIPTION DISP.

DATE APPROVED

1. REWORK
2. SCRAP 3, USE AS IS
4. RECORD CHANGE B

R.t:Q WO. '3'59"1 4

9-11-10 7,.

FORGING NO.

ASSEMBLY DW:S A842S-D MASONEILAN INTERNATIONAL, INC.

NORWOOD, MASSACHUSETIS, U.S.A.

SIZE CODEIOENT.NO.

REV.

B D ~38683 A 8~ 2. 9 fc-'..,.".,.,o -"'c_"'_ov_* --'.:c""c_"...:"s_~.-1 Fl NISH MACHINED SURFACES F. NO.f-----+------j

o'a
a~:,

REF.. USAS 846.J.1962 J

"'sc"'**"LE.-L-----r.;;w-;;.o.""'N"".""H'"2=-o~t0-9_3_-4 __,r'--r---=__J---I

BS - MUESCO CONTROLS, INC.

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