ML20050C961
| ML20050C961 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 02/15/1974 |
| From: | VALCOR ENGINEERING CORP. |
| To: | |
| Shared Package | |
| ML20050C841 | List:
|
| References | |
| RTR-NUREG-0588, RTR-NUREG-588 IEB-79-01B, IEB-79-1B, QR-526, QR-526-RA, NUDOCS 8204090453 | |
| Download: ML20050C961 (52) | |
Text
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oa awi~c. oe s.c ano ov r. o. consu=i s a a c ..o.c = v, or v as cos c c. r s .. c com.cnaien~ R Ei'- !' TABLE OF CONTF'..TS [ ) SECTION ' DESCRIPTION PAGE v, , 1.0 , INTRODUCTION 5 2.0 OBJECT 5 3.0 . CONCLUSION 6 4.0 DISCUSSION 7 4.1 Description of V526 Series solenoid Valves 8 4.1.1 Type of Construction 9 4.1.1.1 Pressure Boundary Components 9 4.1.2 Types of Valve Operation 10' 4.1.2.1 Direct Operating Valves 11 4.1.2.2 Pilot Assist Va)ves 11 4.1.2.3 Latch Valves 12 4.1.3 Operating Power 13 4.1.4 Solenoid Operator 13' 4.1.5 Pressure Boundary Seal 14 4.1.6 Internal Valve Seals 14 4.1.7 Plunger-Seal Sub-Assembly 14 4.2 Generic Qualification 15 4.2.1 Test Influence 16 4 . 2.1.,1 Body and Bonnet Sub-Assembly 17 4.2.1.2 Plunger-Scal Assemblics 17 4.2.1.3 Solenoid Operator 18 4.2.2 Qualification Units 19 4.2.3 Thermal Aging, Radiation & LOCA Qualification 20 4.2.4 Cyclic Life Qualification 24 CODE IDEf4T. t40. SIZE O
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D24 WIN E D( g etN a p. D C f ee ( @ pagCL o g uan g g agg PSOp(SFT GF W A L C ha ( .e G e se g g G o G C OR pO m a isoN ' i o TABLE OF CO!1TEt3TS (Continued) SECTIOll, DESCRIPTIO!! PAGE 4.2.4.1 Rubber to Metal Scal-Seat Design 25 4.2.4.2 . Polyimide to Metal Scal-Scat Design 26 4.2.4.3 Me,tal to Metal Seal-Scat Design 27 4.2.5 Seismic Qualification 28 4.2.5.1 Resonance 29 4.2.5.2 OBE & SSE Tests 31 5.0 MARGIt1 32 6.0 DESCRIPTIO!1 OF TEST Ut!ITS 34 6.1 P/11 V52600-5291-2 34 6.2 P/11 V52600-543 36 6.3 P/tf V52600-557 39 6.4 P/11 V52600-570-1 , 41 6.5 P/11 V54000-30 43 Pigure 1 Assembly Drawing V54000-30 SK9440 45 Figure 2 Assembly Drawing V52600-543 SK9437 46 Pigure 3 Assembly Drawing V52600-557 SK9439 47 Pigure 4 Assembly Drawing V52600-570-1 SK9438 48 - Pigure i Assembly Drawing V52600-5291-2 SK9441 49 ATTACitMEllTS
- Appendix I Combustion Engineering Corporation Test Summary of a Life Cycle Test on a Pilot Assist Solenoid Valve V54000-30 50 CODE IDENT. NO. SIZE
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"-526 SCALE [ VALCOR CNG. CORP. SHCET 3
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SECTION DESCRIPTION pAGE Appendix II S1410 - General Qualification
, Test Procedure for Class IE Nuclear Service Valves 51 hh .
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- 1.0 INTRODUCTIO!!
ym (_/ Titis report lists the types of tests performed,
- the test procedures used, test results obtained, and the analysis used to qualify the Valcor V526 generic series, two-way, solenoid valves for use as IEEE Class IE equipment for nuclear power generating stations.
Generic qualification is demonstrated to meet the requirements of IEEE Standards 323--1974, 344-1975 and 382-1972. In addition, qualification is demon-strated to user established requirements as known up to October 1977.
,cr % k C- , As test requirements or valve configurations may .
change, tests will be performed to' verify conformance to the new requirements. These tests and their re-sults will be reported as supplements to this report. 2.0 OBJECT , , To demonstrate, by test results and analysis of related data, that the Valcor generic V526 series solenoid valves as described in Paragraph 4.1 herein, meet the
. aging,. radiation, seismic, and LOCA requirements of IEEE-323-1974, IEEE-344-1975, and IEEE-382-1972 at the CODEIDENT.NO. SIZE g 96487 A I "-
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, 2.0 OBJECT '(continued)
I conditions specified by Valcor Qualification Test
, Procedure S-1410, attached as Appendix II.
3.O CONCLUSIGN 4 The Valcor generic V526 series solenoid valves meet
\
or exceed the qualification requirements as specified by IEEE-323-1974, IEEE-344-1975 and IEEE-382-1972 at I the conditions specified by Valcor Qualification Test Proceduro S-1410. Qualification by test is demonstrated to meet the levc]s
' listed in Tabic I, as a minimum. These levels include the margin allowed for production variations. (Reference I
1 Section 5.0). TABLE -I OUALIFICATION LEVELS CONDITIONS PARAMETERS
. LIFE 40 years 0 120 0 F, without periodic maintenance. .
RADIATION 2 x 100 Rads total dose. l
, CYCLIC LIFE 7500 Cycles
- ST:ISMIC Bi-axial, Sg Minimum.
1 LOCA 6 lirs. 0 3460P& 113 PSIG (100t R.!!.) I 31 days 0 245 F0 r.13 PSIG (100t R.ll . ) POST LOCA LIFE Equivalent to 6 years 0 130 0P. l l CODE ID' J flT. f:0. SIZE ! 964S7 A OR-526 SC /.LC [ VALCOR ENG. CORP. SHCC7 6
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) 4.0 DISCUSSIOt!
.s Generic qualification for the V526 series solenoid valves, as described in Paragraph 4.1 herein, is based upon the test results of successfully tested valves which are representative of the valcor VS26 series; and an analysis of how these test results apply to the qualification of all solenoid valves ein the V526 series. ~ .
-Section 4.1 of this discussion describes the types of valves in the VS26 series, and the common design features of the series. Section 4.2 addresses generic qualification, and contains an' analysis of actual qualification test,results and how they relate to qualifying the v526 series solenoid valves.
Section 4.2 describes the tests performed, the results obtained, and the analysis relating t' hose results to extending qualification to the V526 series of valves. Section 5.0 lists the test margins allowed to account ' for normal variations in the production of valves. CODE IDENT. NO. SIZE (5
- OR-526 J 96487 A SCALC [ VALCOR ENG. CORP. SHCET 7 l
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DISCUSSIOf1 (continued) m4 q/ Table III (page 21) is a listing of VS26 series solenoid j a) .O
, valves which have been subjected to various qualifying tests. The test reports listed in Table III are not a part of this report, but they are supplemental'to this report, and as such, they are available as the need requires.
Section 6.0, along with Figures 1 to 5, provides a description of the valves tested. DESCRIPTIOt1 OF V526 SERIES SOLE 110ID VALVES 4.1 All solenoid valves which are generically qualified in this V526 series are of the two-way, globe type, with porting arranged in an "in line" configuration, and ranging from h inch to 4 inch line size. 11 o other types are included in this generic qualification. All solenoid valves of the V526 series are identical , i or similar in materials, components, and construction. - l[ \ There are four principal components or sub-assemblics [
- of the complete solenoid valve, they being: (1) body, li (2) bonnet, (3) plunger-scal sub-assembly, and (4) the solenoid sub-accently.
1 l l l t l l CODE IDCf1T. f!O. Cl2C n-526 [ 96487 .A SCALE [ VALCOR CrJG. CORP. SHCCT 0 _ , . _ _ _ _ . _ . _ _ _ _ . _ , ~ _ , _ . - - _ _ _ . _ . - , . . _ _ - j;,, . .rj -g .. --m, u -- .rr m4- +s - -~=f 3ii -- -%. y, ,-#*?
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j g . Types of Construction 4.1 a
, The design and fabrication of'all series V526 valves I are in accordance with the ASME Pressure Vessel Code, !
pection III, Class 1, 2, or 3. ! _.1 Pressure Boundary Components 4.1 The body and bonnet components, which constitute the pressure boundary, are made from Type 316 Corrosion resistant steel, unless specified otherwise for a particular application. Other than materials, t.he only other variable of' these components in this V526 generic series are the actual physical dimensions. The " size" of the valvb is dependent upon the g, flow and pressure requirements, the type of tube f l L dnds required, and compliance to the ASME Section III code requirements. l e
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( Valves in size from 3/8 inch up to 2 inch line size have been subjected to seismic qualification tests
, to demonstrate the integrity of the pressure boundary. '
1 r l l l l ! . CODE IDENT. NO. SIZE 4 g4 OR-526 96487 A SCALE [ VALCOR CNG. CORP. SHEET 9 M_. I_. ? _?-[ 1 L' --m-.C-iA
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. l.2 y T pes of Valve operation This series of valves are of either the direct
? operating or pilot assist types; the type being Qependent upon the required flow coefficient and operating pressure, and either type may be latching or non-latching. Non-latching valves require con-tinuous power to be applied to the solenoid coil for the entire time it is desired to have the valve remain in its energized stat'e. Removal of power causes the valve to immediately return to its de-energized state. This type would be a " fail open" or " fail closed", depending upo.n whether it is a normally open or norma,lly closed valve. p .
~
I Operation of a latch valve requires only a momentary power pulse to either one of two solenoid coils to cause the valve to change state (i.e. open or close) and to remain in that state without power being con-tinuously applied to the solenoid coil. The latch' force is provided by permanent magnets assembled within the solenoid sub-assembly. This valve would be a
" fail in place" type.
CODE IDENT. NO. SIZE m 96487 A -
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4.1.2.1 Direct Operating Valves Direct operating valves are constructed such that the main seal is mechanically coupled directly to the plunger. When the solenoid coil is energized, causing the plunger to shuttle, the main seal also. shuttles with the plunger, thereby making th? valve change state. 4.1.2.2 Pilot Assist Valves Pilot assist valves utilize line pressure generated
)
forces to operate the valve. Ilowever, at zero line pressure, or low differential pressure across the main scal; the solenoid generated force alone can cause the valve to operate. This happens because the pilot seal and plunger assembly is coupled to the e main seal piston. The coupling is not direct, i.e. I there is a definite clearance between the pilot seal and plunger assembly, and the main seal piston. In contrast, a remotely pilot operated. valve requires , some minimum value of line pressure or differential - pressure to cause the main seal to operate. LODE IDEtiT. NO. SIZE
~
et ee4a7 A - ora 2e SCALE [ VALCOR CNG. CORP. SHCET 11 j 4 s
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ensw.ar,. os s.o= a o o r r. o.,ctuac on c e oovet.o . . ou on .= cae r .e enow.sn to co o s u.e s ..c ..o.c a r e or v a6 c e, R EV-e c. s a ..~ a c o..oa aview i O 4.1.2.3 Latch Valves V t Latch valves may be either direct operating or pilot assist type valves. A latch valve requires only a ipomentary energization of either one of two solenoid
~
coils to c,hange state. Once the plunger shuttles to a position, solenoid power can be removed and'the valve will be held in that position by'a magnetic force produced by"a magnet assembly built within the solenoid assembly. 4.1.3 Operating Power Power applied to the solenoids is either DC or AC.
! 'In the case of a DC operated solenoid , power is -
4 applied directly to thp coil; whereas in an AC powered coil, the power is rectified to DC before being applied .: [ to the coil. AC power is rectified to DC power by a full wave bridge rectifier contained within the solenoid sub-assembly. An AC powered valve can also be operated with DC power without any changes in circuitry. Valves configured for AC operation also contain a diode sup-pression circuit within the solenoid sub-assembly to . protect the rectifier from power line transients. l i I coDCIDENT,NO. SIZE l O OR-526 'G 96487 A SCALC [ VALCOR CNG. CORP. SHCCT 12 4 _ .- _ ..
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..c,. o e,v r a c..et e su-, s m a c -- onc -v e or i i .t c o c c u -sec co -c= = v.o Ipgy-4.1.4 Solenoid operator a All solenoid operators of the VS26 series valves are manufactured of the same materials and components, where
. such components are required in a solenoid, i All solenoid sub-assemblics are a'" slip on" type which k
allows the sub-assembly to be reinoved from the valve l without removal of the valve from the line,.and without i I
' interference to the valve pressure boundaries. !
i* A solenoid operator may also contain indicating switches, i a full wave bridge rectifier,'and diode suppression cir- !
~
i cult, all depending upon specific requirements. i j
#h' r
The complete operator assembly is designed and constructed i to conform to the requirements of either NEMA 4 or NEMA 7. s i All solenoid operators are sealed from the external 4
)
a environment by an outer shell and cover, with ethylene 1 I propylene O-rings forming the seals at housing interfaces. [- i
,s Power and indicating switch leads are brought into the I j
solenoid through an NPT conduit port located in the i ( l solenoid cover. I 2 I i h ccotsocNT.no. sus j ~
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y u 2ur Oa.sc o usa. a~us acvuse On au=oouCteo n --out os . eaa n is exo cirr DO AWlHG. D t 9 8 G A ND Ov oes e De t C L O S ve t g a n C psOpta?T OF vaLCom f .e G 6Mi t ee.e6 C O2 Pois a vsON REV* I 4.1.5 Pressure Boundary Seal Only one pressure boundary seal is inherent in the V526 series design, and its location is at the bonnet to body interface. This seal is either an 0-ring
'(ethylene propylene) seal or an all welded seal, the type being dependent upon specific operating require-ments.
4.1.6 Internal valve Seals Internal seals can be one of the following designs:
-(a) metal to metal, (b) rubber (ethylene propylene) to metal, or (c) thermoplastic (polyimide) to metal.
The type of seal combination used is dependent upon , specific operating requirements. Direct acting valves
, contain one seat-seal interface, and pilot assist ,,
valves contain two coat-scal interfaces, i.e. the main and pilot seat-seal interfaces. Life cycle tests have been perform'ed on 'cach seat-scal material combination. The results of these tests are described in Paragraph 4.2.4, herein.
- 4.1.7
- Plunger-seal Sub-Assembly In a direct operating configuration, the plunger-seal sub-assembly consists of a spring, plunger, and seal disc. The sub-assembly of a pilot assist valve, con-sists of a spring, plunger, pilot and main pis. ton seal assembly.
CODEIDENT.NO. SIZE o L' 96487 A _ *~ - SCALE [ VALCOR ENG. CORP. SHEET 3 ,; l i ,m . ww . , ' ~ '
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i *- V u= 4.uv uosit c o u c c. u t.~ur ac t ue r om s t ra oouctio~ in w aos c o2 .~ paa r is e2 o .:ir c o onaw.~c. or sic ~ a=o ovav a o.scoosunt s met ** oac av e or wa6 coa r c at a s.~c roseon ation ggy- l 4.1.7 Plunger-Seal Sub-Assembly (Continued) In a latch type valve, the return spring is omitted. This sub-assembly, which is in contact with the media flowing through the valve, is made of c,orrosion resistant metals; and either ethylene propylene or polyimide seals in soft seal designs. 4.2 Generic Qualification Qualification of the V526 valve series is based upon the successful completion of tests on valves in this series, and on valves similar to this series. The design common to the V526 family of solenoid valves is such that it utili:*.es the same operating principles, sane materials of construction, similar or the same components, and the same limiting stresses within a size range of 1/4 inch to 4 inch line size. The design com-monality of the V526 series therefore allows the exten-sion of IEEE Class IE equipment qualification, from those particular valves tested, to all valves of tha s.eries, ,
, based upon these ccmmon similarities.
> IEEE Std. 323-1974 specifies five (5) type tests which can be used to demonstrate qualification for Class IE equipment for nuclear power generating station service. These type CODE IDENT. NO. SIZE lf 96487 A
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'f us. cut..oaer, o us e, . v, a ci va t on ar ewooucreo r m a we.e c, o, sic a u o o, , s, o.s et os um e s a a r r a oe r a ee. w ou om . eact es eaox :eito t e or w at c oa R E V-l t uce c tre c coa anaaveo 4.2 Generic Oualification (Continued)
,m y i
tests are: (1) thermal aging, (2) cyclic aging, (3) l radiation aging, (4) seismic vibration, and (5) l operation under LOCA conditions. I
;.2.1 Test Influence I
i Each c;f the various sub'-assemblies or components which make up the complete solenoid valve are influenced by one or more'of the IEEE-323-1974 type tests. Table II lists those tests and the major valve sub-assemblies
.which can be influenced by them.
i TABLE II f TEST INFLUENCE SUB-ASSEMBLY TEST Body an'd Bonnet , Seismic, LOCA < 7, 4 Solenoid Operator Thermal Aging, Cyclic Aging, Radiation Aging, Seismic, LOCA i Plunger Seal Assembly Cyclic Aging, Seismic (fictal to tietal) Plunger Seal Assembly Thermal Aging, Radiation Aging, (Rubber to Metal) Cyclic Aging, Seismic
. Plunger Seal Assembly Thermal Aging, Radiation Aging, (Plastic to fletal) Cyclic Aging, Seismic .
e CODEIDENT.NO. SIZE l OR-526
.g 96487 A SCALE [ VALCOR ENG. CORP. SHCCT 16 l 4 f
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- a unavenonia t o vec. . usactuar om me raoouctio~ .n waots os sa raan es eso .sevc o omaw ~ c. o r t.c a o ovu.e o.s c o o s uas s m a c oac ne, or vac c oa e c.~t e s. c coa aoa a r.o= R E V- i .m j 4.2.1.1 Body and Bonnet Sub-Assembly The body and bonnet sub-assembly, which constitutes the valve pressure, boundaries, can be influenced by the scismic and LOCA requirements. The LOCA influence is limited only to the case where the bonnet to body interface seal is an 0-ring. In such a case, the sealing 0-ring would experience the same conditions as the solenoid operator external 0-ring seals. Qualification is extended to the bonnet to body seal, based upon the material.and function being the same as the qualified solenoid operator 0-ring seals,which were qualified on P/N V52600-5291-2.
Seismic influences are determined by the structural and b geometric make up of the sub-assembly. Qualification a to seismic requirements is demonstrated by tests on representative valves of the series. An analysis of seismic influences is given in paragraph 4.2.5 herein. 4.2.1.2 Plunger-Scal Assemblies The most significant influence on this sub-assembly are the affects of cyclic aging. Qualification to this - requirement is demonstrated by actual tests, as reported in paragraph 4.2.4 herein. CODE IDENT. NO. SIZE (T E' 96487 A - QR-5 2 6 SCALE / VALCOR ENG. CORP. SHCCT 17 f e.
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.. un au s ou r e o v e c. .,.u n ac r u-c om a r e= oo uc tio ~ .
om aw. c. or s c a o o v r a e,.e ct o sua e s ,a c --oet a v, "orwvota6ec om e~ eaa t is emoa.zirc o i oa r <..~ a t a. o c o. oa s tion lREV' 4.2.1.2 Plunger-Scal Assemblies (Continued) Seismic influences would only affect the sub-assembly
, if it were in resonance. A resonance of this sub-assembly is considered an undesirable anomaly, and is not permitted in the valve design. The lack of resonances in this series has been confirmed by actual tests, as reported in paragraph 4.2.5, herein.
Thermal and radiation influences affect only the r.on-
. metallic seal materials. Immunity from these influences has been demonstrated by tests as reported in paragraph 4.2.3, herein.
4.2.1.3 Solenoid operator 5 The solenoid operator is the only sub-assembly which , can be influenced by all five test requirements, llow-ever, the principal environmental tests are thermal and radiation aging, and LOCA. The thermal and radiation environments can affect the electrical properties of all cicctrical components and insulation, as well as affect the sealing properties of all external 0-ring seals. ,
, Qualification to these requirements is reported in paragraph 4.2.3, herein.
CODE IDENT. NO. SIZE
~
$ 96487 A : o-s2c SCALE [ VALCOR ENG. CORP. SHCCT I f5 7- .,v z u
+ z r--. m m.--vw.e m , e +- ~ ~ ,.. ---r..e - * = **--
'r-- -
~ ,
V' u~auv osis t o u sc. wa ur ac e vac on sc e-ooucvio~ ~ w-os a o2 i~ pas t o **c . sin c o j REV. onwi~c. o a s.o a ~o ov~, . o.,ct os uai s a-c noec e r v or vac con t ~ c.~, a me~c comeonario I r 4.2.1.3 Solenoid Operator (Con tinood) Seismic affects on the solenoid operator are limited to a structural stress. Because of the low mass of all 4 solenoid components, the high stiffness of supporting structures, and the low frequency content of the seismic input no resonances of the components occur, resulting in a negligible mechanical stress. Qualification to these requirements is demonstrated by test, and is reported in paragraph 4.2.5, herein. 4.2.2 Qualification Units Qualification tests were performed on five different valves. The valve part numbers and the tests performed on each unit are listed in Table II, (pg. 21). Figures 1 to 5 1' depict each type of valve subjected to qualification tests, and section 6.0 of this report describes the operation of each valve. One valve of the series, P/N V52600-5291-2 was subjected to and successfully completed all of th'e five (5) tests required by IEEE Standard 323-1974. Reference Qualification Test Report QR52600-515. CODE IDEtiT. IdO. SIZE
~ $ 96487 A -
R-526 SCALE [ VALCOR CtV G. C O R P. SHECT 19 f
'i l
_..~,.,,y-
-7 g-v v ~ ^
-:--------~ -
a e uNauf nomis t o utt. a.saur actuar on ot es.ooucreo sw w ot t om e paar se eno.es3 v to oa awi~ u. o r s.c ,. r> o r..r a o..c t o sv.c s . c .o.c .,, os v ac c om r c. c a.~ c c on.oa a vio g-4.2.2 Qualification Units (Continued)
) Seismic tests were successfully performed on two other
~
, valves of the series, P/N V52600-557, a 3/4 inch latch valve, and P/N V52600-570-1 a 2 inch pilot assist valve.
l
. Seismic tests were performed on different operating types of valves because their responses to seismic inputs can vary due to their design characteristics and qualification could best be demonstrated by actual test. Figurcs 3, 4 and 5 depict the types of valves subjected to seismic
. tests. Reference paragraph 4.2.5 herein for an analysis of the seismic qualification for the V526 series.
Life cycle tests were successfully performed on each of h, the three dif ferent st:al-seat combinations available in , h the VS26 series. Cyclic tests were performed on each combination because qualification could only be demon-strated by actual tests. P/N V52600-5291-2 contained the rubber to metal seal design,.P/N V54000-30 contained the metal to metal seal design, and P/,N V52600-543 con-tained the plastic to metal seal design. Reference
, paragraph 4.2.4 for an analysis of cyclic life qualification, for the V526 series seal-seat designs.
CODEIDENT.NO. SIZE
"~5 6 g 96487 A SCALC / VALCOR CNG. CORP. S H C C T. 20 l h
. - _ =. _ _ . , , * - .p r _ -- _ __-----. . p ww . w - ==
, 7ABLE III CUALIP3CA, TION UN!?S s
VALVE VALVE LINE PRESSURE BOUNOARY SEAL-SEAT TEST P/:3 pg7ggy.;gg.gg g g CESCPPIT!ON SIIE TYPE MATCRIAL CC?:FICUPATION
- Pr!?? ftMOD ;gg7 ggggg; V52603 5291-2 valve, Solmoid, 3/8" Direct AS:c SA 479-316 EPR Seal- The .1 Ac a ng , OR52603-515 Naclear Service, Operating Metal Scat Ra nation Agar.C,
.) Positten Indica-g Cyclic Life, stoa, A.C. N.C. Se: s::1c, LCCA. V52603-54: valve. So le r.o i d , 1* Pilot Assist, AS c SA 240-316 Polyi aide Seal- Cyclic Life MR526CC-553-1 1 * , SP.u t Cff, N.C. Latch Metal Scat Nuclear Service, Posatten Ir. dica-t:en, Latching V52600-557 valve, Solenoad, 3/4" Direct ASME SA 479-316 Polyinide Scal- " Seismic g$;ggg,$$ ,,* 3/4" Nuclear Operatirg, Metal Scat Service, Position Latch Indacation, f Latching v52600 ',70-1 valvo, so le r.oid, 2* Pilot ASME SA 479-316 EPR Scal- Scismic E3524CC-570-1-; N.C., 2", Pcst- Assist Metal Seat
; tien Indication, D.C.
v54000-30 Solenoid Cperated Direct Bonnet: CRES 430 Pilot: Stellite ciclic Life V31ve, Nuclear Operating Dody: CRES 316 Scal-316 Seat g pegg'3 , ,S.: .ma r nep Service, N.C. Main: Stellite
, Seat & Seal 'l 1
9 e i 4 a c 1 s. o cootnotat.N3 5tII g O't- 5 2 6 3 96487 A s scuc / vatcon c~c co e. I:-cct :- Jg [.* k
~=.
i a
. " E' Y
, v~ cut oa.a c o u sc. anur.cius c om s c e= no vci.ou in w..otc on .~ *ami es e.o .a.tc
- c ra w.u c. o c e.c ~ a n o o s c u o. , c t o s v. , ..c .. o.c a t, o, w at c o. , ~ r..~ c , .~ o c oa.o. .t.o ~ REV- l 4.2.3 Thermal Aging, Radiation, and LOCA Oualification Of the five type tests required by IEEE-323-1974,
' I qualification to three tests, namely, thermal aging, radiation aging, and performance under LOCA condi- !
4 tions are generically qualified based upon the common use of materials and similarity of design in the V526 series. These three tests directly affect properties of the materials used in the valve construction. The metallic materials of construction are not affected by thermal aging or radiation exposure as demonstrated by their constant use throughout in-dustry in these environments. However, metallic . W materials can be affected by the LOCA chemical spray and saturated steam environments if they are not inherently corrosion resistant (CRES ) , or if
- they are not treated to be corrosion resistant.
The only metallics exposed to the LOCA environme,n,t g, which are not inherently CRES are the solenoid cover, solenoid housing and solenoid restraining bolts used in NEMA 4 enclosures. These materials are all carbon steel. The solenoid cover and housing are plated with nickel, and the solenoid restraining bolts are plated with cadmium or nickel, or coated with manganese phosphate. CODE IDENT NO SIZE O
~
96487 A _ a-s2c SCALE [ VALCOR ENG. CORP. SHECT 22 j
+
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- n tk 4.2.3 Thermal Aging, Radiation, and LOCA Oualification (Continued)
Valve P/11 V52600-5291-2 which contains these materials, a successfully completed a 30 day LOCA test without in-curring any corrosion on any metallic components. The properties of all non-metallic materials used in the V526. series construction can be affected by thermal aging, radiation, and LOCA environment exposures. With the exception of 0-rings, these non-metallies are used for their dielcctric and insulation resistance properties. O-rings are used for their sealing ability, the primary property being resiliency of the materials. The seal - seat configuration Enost susceptible to these environments
> l, ..
is the rubber (ethylene propylene) to metal combination. l e One unit of the V526 series, P/t1 V52600-5291-2, successfully met all the qualification requirements i for thermal aging, radiation, and LOCA. The solenoid i operator of this qualification unit contained all the components possible in an operator of this series valve. The principle components are (1) solenoid coil, (2) indicating switches, (3) bridge rectifier assembly, (4) diode
,,, m. -
suppression assembly, and (5) terminal blocks. The only variation possible within these components themselves are CODEIDENT,NO. SIZE p 96487 A _ n-526 SCALE / VALCOR ENG. CORP. SHECT 23 j k -
V sa.n 2 un. u s. u.. ur ac t u m t on at esoouctio ea waott os u. ennt se eau.usis t o p gy, C. G a w i ss e
" , e s.c= . n os c a o.e ct os uai s asc ==oac a t e or wat coa c c. t t e. o c oa nom a tis l
.; Thermal Aging, Radiation, and LOCA Oualification (Continued) 4.? '
v that the coil assembly wire size and number of turns may vary depending upon valve requirements, and the i number of positions in the terminal block may vary. The seal seat combination in the qualification unit is rubber (ethylene propylene) to metal, the " worst case"
. combination for these types of environments.
Since P/N V52600-5291-2, utilizing all the materials, components, and " worst case" seal seat combination used in the v526 series constructien, successfully met all thermal agi,ng, radiation and LOCA requirements, N qualification is extended to the generic V526 series.
- I
- erence the tests performed and results obtained ( - Y ni Qualification Test Report OR52600-515. # Cyclic Life Oualification A cyclic life test determines the ability of moving elements to resist mechanical wear. The principle components subject to wear are the sliding metal . parts and the seal seat surfaces. Wear of these parts is determined by the materials of construction and surface finishes. All sliding. metal parts of the VS26 series valves are manufactured of like or CoDCl DENT.No. SIZE
~
OR-526 9 3 -
) 96487 A SCALE / VALCOR CNG. CORP. lGHECT 24 h
-n -- __ - _ - _ _ _ _ _ - - - - _ _ _ = = = = _ _ _ _
W unauswon.no vec. unuve actune on ac eno ow c on . eas t i eso .sist o en aw.uc. oe s.c= ano ov .a n.s coo suae s anc =ouc
= osttio=
er v.= or vai. coa a ..c. a r a. e c oneom at.o= R EV. ! 4.2.4 Cyclic Life Oualification" (Continued) [] V similar materials and all are machined to the same finishes. Each type of scal-seat design is the same in this series, regardless of scal-seat size. Three different valves of the V526 series, containing, the same materials and finishes of sliding metal parts, and three different scal-seat combinations, each success-fully completed a minimum of 7500 cycles of testing w'ith-out abnormal wear or degredation of performance. Figures 1, 2 and 5 depict the seal-seat designs subjected to cyclic life tests. 4.2.4.1 Rubber to Metal Scal-Seat Design ' h Of the three scal-seat' combinations available in the < h s/ V526 series, the rubber (ethylene propylene) to metal combination is the'most susceptible to wear after thermal and radiation aging. Its susceptibility is due to the rubber 0-ring material (ethylene propylene) being most affected by thermal aging, as compared to polyimide or metal. Life cycle tests on this combination of scal-seat were successfully completed on valve P/N VS2600-5291-2 after it was thermally aged to the equivalent of a 40 year life. Thermal aging was performed at 318*P for 172 hours. CODE IDEt4T. 740. SIZE
"~
96487 A - SCAT.E / VALCOR CNG. CORP. SHCCT 25 4
V -- 6,. unt.utwO2 a c o ur t. wauve sc T ua c Os a c e= Oo ucteo ea wrot t onsa.*Aaf as enOn 0+vco 02 &wtM G. O t isG H AND OYMf D D89 CL O S U#1 $ eaf Pm O*(iW T T Or w a g c o.2 t o.G eN( t ** SNG COGJ POO A TIO N R E \'^ -i
- ~~' ) 4.2.4.1 Rubber to Metal Seal Seat Design (Continued) s No degredation of sealing performance was observed a
due to the life cycle tests. The successful per-formance of this combination qualifies all rubber to metal seal-seat combinations of the V526 series to a minimum cyclic life of 7500 cycles. Reference Valcor Qualification Report QR52600-515 for a de-tailed description of the test and its results. 4.2.4.2 Polyimide to Metal Scal-Seat Design Polyimide is not susceptible to accelerated thermal aging below 400*F, or accumulated radiation doses 9 less than 10 Rads, but for cyclic life purposes, its ability to mechanically make a seal is dependent
~
f on its abrading resistance when repeatedly loaded ' against a metal seat surface. . To qualify this combination of seal-seat, a pilot assist valve, P/N V52600-543, was subjected to 23,200 cycles of operation. This pilot design incorporates two (2) scal-seat designs, one being the main seal, , and the other being the pilot seal. The main seal is an encapsulated polyimide design, and the pilot seal is a solid piece of polyimide, but the seal-seat sealing interface in each design is identical. The CODEIDENT.NO. SIZE
~
$ 96487 A "~5 6 SCALE / VALCOR CNG. CORP. SHEET 26 4
V u~muraoa.s e o u sc. a~ur ac,va t oa cc e.oovci o~ .~ -os c om i~ eas t is cuo .:itt o S3& W8HC. D E B aG ~ a te D oT6.f m Det C L O s um t 5 aHC P80PCfptT or vaccom ( *.Gimi t aew G Co m po= a veON REV' ' i
'R 4.2.4.2 Polyimide to Metal Seal-Seat Design (Continued)
L > 4' ratio of the main seal to pilot seal diameter is approx-a imately 12-5, thus demonstrating that size is of no significance in the scal-seat ccmbination. Of the 23,200 cycles of operation, 700 cycles'were performed at a -320*F LN media temperature. 2 No degredation of sealing performance occurred during. or efter the life cycle tests, thereby qualifying the pilot assist seal-seat design and polyimide materials as used in the V526 series valves for a minimum life of 23,200 cycles. The cycle tests performed, and their , results are recorded in Valcor report MRS2600-543-1. 4.2.4.3 Metal to Metal Seal-Seat Design s A metal to metal scal-seat design is not susceptible to thermal aging or radiation aging, however, it is suc-coptible to errosion at elevated tems.cratures', and to mechanical wear due to repeated cyclic stress at the seal-seat interface. To overcome these two drawbacks all Valcor nuclear service solenoid valves designed with . metal to metal seal-seats, including the VS26 series valves, incorporate hard faced seal and seat surfaces. One pilot assist type valve, P/N V54000-30 with a metal to metal hard faced scal-seat design successfully com-
, CODE IDENT. NO. SIZE O ~
OR-526 L'
. 96487 A SCALE [ VALCOR CNG. CORP. SHECT 2 ~1 A
i
- c_ - - - . . . - . - . . , . - - - . - - - - - . - - . -- .- .. - __ - - - . - -
.. y unauror 02 emuc. ozesc m.o oa usc. wanus actuar o. ac emoovct.o en wwows om . east sa eao .:.vu o o orme n o.3ct os v.. s ..c ..o.c m e, or v as co. c c. r c a. c c on.om ar.ou REV-
.E' 4.2.4.3 Metal to Metal Seal Seat Design (Continued) pleted 225,000 cycles of operation with reactor water
~
as the test media. Tests were performed at media temperatures of 600*F and 2500 PSIG pressure. Botn,
-the pilot and main seal designs are identical except for the sealing diameters. The cyclic tests were performed by Combustion Engineering Corporation of Windsor, Connecticut. Their letter attesting to the-test conditions and results is attached as Appendix I herein. Figure 1 is an assembly drawing of the valve tested.
Although the valve tested is not of the V526 series,
; the seal seat design is identical to that used in the ,
V526 series. Based upcn these test results, the seal-seat der;ign.,. and the specially hardened materials of construction qualify the design for a minimum cyclic life of 225,000 cycles. . . 4.2.5 Seismic Oualification seismic events can affect a valve by stressing the structural members, and by inducing loads on the moving element (plunger and seal assembly) in the valve. CODE IDENT. NO. SIZE r^ OR-526 L- 96487 A SCALE / VALCOR CNG. CORP. SHECT 28 ns e.
- ,- mau rwo int o uit. wanvr actuar on ac e=ooucreo en v.wout on oc emen e. o u t.c
- mat is Eaoa mic o a o o v r a o.s co o s ua r s n a c *= ost a v, or v as c om c a.ce~ t t a.~ o c om aom ateow R EY' 4.2.5.1 Resonance t l ,
Each valve of the V526 series is stress analyzed to determine compliance with the applicable allowable [ code stress, and this analysis includes the loads
, induced by seismic accelerations. Therefore, the only unknown seismic load factor would be those loads induced on the structural. members (body and bonnet) by the presence of resonances withi.n the frequency band of interest.
Resonances of structural members are determined by the mass they support, their structural strength and their geometry. Resonances of the moving element (plunger and seal assembly) are determined by the - ( ~'s mass of the moving element, spring rate of the re-v storing spring,if a spring is present; the spring restoring load or latch force in the case of latching valves, the load due to line pressure, and coulomb damping. -
, The most positive way to demonstrate the presence or absence of resonance is to perform a resonance test on a var.iety of valve types and sizes which make up a series of valves. To demonstrate the resonance free CODE IDLNT. NO. SIZE
@ 96487 A "-' '
SCALE / VALCOR CNG. CORP. GHECT 29 f
._.-.- --..---=
k
, f5 R e e w1persJyrunf t es-A - *. W *g* - **,
i , - , , 4- - 4 , my m .; cZy, P "'
9 j
; * . unauruocer r o use. umaur ac rime oa ar raoouctiou in wrot t onsu cant is e= onenitt o g gy- ,.
nam w uc.. rit escu aun on..r u ois cL ot,unt s m a r emocr a te or va t c oa e n ciur s ai~c con eon ation. /7 4.2.5.1 RESOt3A!!CI: (continued) f design of the V526 series valves, seismic tests were a performed on thren'(3) different operating types and sizes of valves. The representative valves tested wqre P/II's V52600-5291-2, V52600-557, and V52600-570-1, a direct operating, direct operating latch, and pilot ar,sist types, respectively. Reference rigures 2, 3 and 4 for the respective assembly drawings. The nominal pipe line sizes are 3/8 inch, 3/4 inch, and 2 inches respective 3y. All three (3) of the valves tested were 0,1tfitted with position indicating switches. The AC powered valves contained bridge rectifiers and diode suppression componcnts. During each seismic test the valves were pressurized to their normal operating i>ressure with Gr! 2- ' A resonance survey was performed on each unit from 1 to 50 !!z at 0.2 9's, 11o structural, moving element, or
- position indication switch resonances less than 3411:
were evident on any of the three valves tested. Ref-crence the tests and results as reported in test . reports ORS 2600-515, !!R52600-557-1, and !!R52600-570-1-2. CODE IDENT. NO. S!7C 96487 A -
"-52' SC At C / ... . . .
VALCOR ENG. CORP. SHECT 30
,o % . m ,. -. e__ ,
kw-i __ , , - - .W P sen-y-- - =" - v ~ ~m a vum - , . - _ _ ..-
V
.uu au r. oa.n o u s e . a u, .c i un t om a t e= on u c tio = e.. waos e oa in ran t a s * = o-.ut e o n a vm. c or e.o u a n oius a e sco os ue. 5 aus e=oet a v, or wat c on s c.us s a. .c c oa eon ar.ou REY. /\
4.2.5.2 OBE and SSE TESTS @ Upon' completion of the resonance survey, each valve was subjected to 5 SSE tests in each set of test axes. The vibratory inputs were pseudo-random in nature, phase incoherent, and simultaneously applied to one horizontal and vertical set of axes. Each test was repeated in a second set of axes by simultaneously applying the' vibratory input to the second horizontal and vertical axes. The input levels, were 3.0 g minimum measured at the base of the test fixture. The duration of each test in each axis pair was 30 seconds, minimum. . Following the OBE touts, 3 SSE tests were perfo2.med. O s in the same manner as the OBE tests, except that < the input level was increased to 5.0 9's, minimum. During each OBE and SSE test, internal leakage and position indicating switch operation were monitored, and each valve was operated at minimum voltage. On each valve tested, internal leakage was immeasurable,
- position switch operation was normal, and the operation at minimum voltage was normal. The procedures and results of these tests are reported in Valcor Test Reports ORS 2600-515, MR52600-557-1, and PP52600-570-1-2.
( h CODE IDEl4T. !!O. L12E 96487 A -
"~' '
CCALE / VALCOM CNG. CORP. SHECT 31 A . - - - _ . ,. _ .. . . r. - . ..- - - . . ~ . . - - - , . . , - . - - . ~ ~ - - - - - - - - - - - - - -
'i T/
), --
una u t-oa. n o us t.. s.uo r ac t s,a r ce s;r e c or.u ct eo , e n w-c6 c om .
*am e s e = = o. con to e= a w.n s. c a t.c n 2 own e c.ut e 2 um s a n c -a o c as , or v as c o. t ~ c. e r .. .c. c o=.o..v.on i p"e *~ u i
i e
! 4.2.5.2 OBE and SSE Tests (Continued) t
, Seismic qualification of the V526 series to a minimum '
level of Sg's is based upon the successful completion ! of tests, on each operating type, and range of valve i i sizes in the series. s i t 5.0 14ARGIN ! i All qualification tests were performed at test levels 1 t f or conditions in excess of known maximum application I y requirements. These margins were imposed to account !, for normal variations that may occur in production, and are in accordance with the margins as suggested :
's by IEEE Std. 323-1974. Table III (page 33) lists the l
t hi margins as suggested by IEEE 323-1974, and as actually f. I tested. l 1 i 8 I f
, ,1 I
f s
, I i
l. i 1 e i. i, Cost iochi.140. CE L f h I
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96437 81 -- L scAtt / l v.stcott c N G. c o.w. Inster 32 ! g -- -
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(
, TABLE IV
, TEST CO!1DITIO!J I4ARGIrJS TEST E!JVIRON!4EtJTAL IEEE ACTUAL TEST PAltAf1ETER REQUI REf4Ei1T I4ARGI!J . CONDITIO!J 14CA Steam at 340*F +15 F, limited Steam at 346 F Temperature and 103 PSIG by 10 lb gjin 2 and 113 PSIG pressure .timit LOCA 103 PSIG +10t, limited 10 lbg /in?' in Pressure to 10 lb f/in 2 excess of requirement.
Radiation 1 x 10 8 Rad 8
+10% 2 x 10 Rad (1000 in excess of requirement)
Voltage flouinal 110% i lot LOCA and seismic performed at - 10% of nominal
' Frequency Resonance 1-33 15% of rated Resonance: .) value 1-50 11: . - -
N i OBE and SSE OBE and SSE: 1 to 50 !!z 1 - 100 llz Time 30 Day Post LOCA +100 Equivalent to 6 years at 200 F Environmental One LOCA 2 LOCA 2 IDCA Transients Transients Transient Transient Vibration, 3.0g +10% 5.09, minimum CCDC IDCf4T. IJO. ClZE
~
96487 A -
"-526
- == = ======= = == =:==
cc.u c / , : =.==. vat. con crec. conn.
====. == .- sucer u -}
. . . . . ..= -
(. unautuoxia r o usc. wauve aceuse on st raoouction in w..ott oa en can t is enouisitt o .1 e nawinc. or sec.u auo ov..e n r .sct osuar s ami epoat.o n v or wat e ca t e.co.t r eino con ro2 aveen gy, p% ? 6.0 D,,SCRIPTIOt1 OF VALVES TESTED This section describes each of the valves tested.
, Pigure 1 to 5 are assembly drawings of these valves. All valves, except V54000-30, are of the V526 series.
Each valve has been subjected to the tests as listed in Tabic III on page 21. 6.1 P/N V52600-5291-2 Valcor P/N V52600-5291-2 is a 2 way, solenoid operated globe valve, designed and constructed to meet the requirements of ,the ASME Code, Section III, Class 2. (Ref: The results of the tests performed on this valve are given in OR52600-515) . The body to bonrict interface is a weld seal, making the pressure boundary a complete hermetically scaled unit. The valve is designed for a primary service pressure ,
, rating of 150 lbs. at a design temperature of 350 P.
The normal operating pressure is 44 PSIG, at a - temperature of 120 P and relative humidity up to 100 percent. The minimum flow coefficient is 1.0. ,
~ .
CODC IDCtJT. f;0. SIZE 96487 A o"-526
--- =
sct.Lt / VALCOR ENC.. CORP. SHEET 34
- 93. .MTM N M*M#
f r "-W r - -~ *N #'D
---7
' V
. U pe AU T H O R a l f Q U 1s t, ad & N U F A C T U2 ( Om a( PmOOUCTION GM wwCLE O2 eN P&af e3 PQCMsreTgo D2 A we N G. O f S tG es AND OTHE R Ds 9 CL OS U?st 5 amt enOPCST9 OF w a6 C Rs (
- Ge*e t t aese G C O2 pt m a TION p *
~
,{ ' ) 6.1 P/N V52600-5291-2 (Continued)
( -
, All materials of construction are radiation compatible {
up to accumulated dosages of 2 x 10 0 Rads. In the de-energized condition (no voltage applied) , the outlet port is isolated from the inlet port by a plunger-seal assembly, which contains a resilient rubber insert (ethylene propylene) which seals against a metal seat in the body. Energizing the solenoid'with 108 to 132 VAC causes the plunger to lift the poppet off of the seat, causing the outlet port to be common to the inlet port. The . minimum drop-out voltage (valve closes) is 6 VAC. *- The solenoid assembly is designed and constructed to be in accordance with the requirements of NEMA 4. comp' The solenoid assembly contains two diode assemblies, one
,a full wave bridge rectifier, and the other a zener diode -
assembly. The rectifier converts the AC input power into DC power to energize the solenoid coil. The.zener diode assembly is connected across the AC input power leads to suppress power line high voltage transients. i l CCOE IDENT. NO. SIZE V 96487 A *-526 SCALE [ VALCOR ENG. CORP. SHCCT 35 ( rm e -v-'PU'$t -
un e,u r .oin z t o ust.. ananu, aciunc on nt encouc tion m nut t on m pa n t a ps,cn oiti c onam.c. r,c ucu ano ovnen oitctosuacs ant. anoprary or vatcon t ucmctnmc coaponarion REV' 4 } . 6.1 r/:1 V5'2600-5291 _q (Centinued) . The valve sciencid acaembly r.lse.. centains four indicating
, reed switches which are utill:cd as a pair of double pole, double, throw switches. With the valve closed (de-energi:cd) each pole set of switch contacts are such that one pole is open and the other closed (reference Assembly Drawing V52600-5291-2 in Figure 5), and when the valve is open (energized), all switches reverse state. The switches are actuated by a nagnet assembly which is hermetically scaled and attached to the valve plunger.
6.2 P/M V52600-543 Valcor P/M V52600-543 is a pilot assist, 2 way, globe - type, latching solenoid valve designed and constructed to meet the requirements of ANSI Code B31.1. The body to bonnet interface is a weld seal which makes the pressure boundary a completely hermetically sealed unit. l The design pressure is 150 PSIG at a 100*F temperature rating. The operating pressure is 45 PSIG at a minus (-) l 320*F temperature, with an ambient environment ranging from zero to 90'F at pressures up to 150 PSIG. The minimum design flou coefficient is 12. CODEIDENT.NO. SIZ E A I 96487 a-s26 SCALE / V ALCOR ENG CORP l SH ELT 36 A m .s. .i. ,*,.. - - . ~ . - - - . . -
.~rrw
,me - -
~'
untumosento usc. uauvractua< o. = c e-ou uc tio .= - oo e on .= raa r is pa onew t o n a a win c. o s n.c ! a n o as ur a o.n et.o s v.i s a.c ..n.c a s , er vas co c c. c r a.~ c c om en - a v.ow p gy-6 6.2 P/N V52600-543 (Continued) W All materials of construction are radiation compatible up to accumulated dosages of 2 x 10 8 Rads.
!Iomentarily (1/2 second minimum) energizing the "open" solenoid coil with 112 to 137 VDC causes the plunger to open the pilot seal, venting the pressure from behind the main seal piston through the pilot discharge orifice.
, As pressure decreases behind the piston a pneumatic force develops, which overcomes the spring load holding the piston against the main seat. When the spring force is overcome, the piston moves off the main seat, opening the valve. Removal of coil voltage will not cause 4
- the valve to change. state, as the plungei and pilot seal are held in this position by latching magnets installed within the solenoid, thus maintaining the main seal open.
Momentarily (1/2 second minimum) energizing the "close" solenoid coil causes the plunger to shtittle and seal the pilot seat, thereby closing the pilot section bleed.
- When the pilot section bleed closes, upstream pressure, which is constantly being bled into the back piston cavity through a pilot inlet orifice, causes the differential i
CODEIDENT.NO. SIZE 9 O 96487 A "-526 SCALE / VALCOR ENG. CORP. SHECT 37 4
- r- - - --
,_ . . - , .,- ...,--m,,. ,.. . ;- . ~,,n v w y, , ., m ,--. . . ._ ..
-,,c ~-w - ,- ,- - - - -
.-; -n- v ~sye = ' == %
'W #
y a ute &uT HO282( O u s t me a n uF AC
- ua r om R C PR OOuc taON s** *en OLt om eN PAR T se PS OHistitO D3 AW6M G. O t 9 G ov A ND O THg m De S CL. 0 5 un t !
amt FAOrteff of w&LCO2 ( N GIN E E R t *e ti C OR PO2 a ?60 >e g* I 6.2 P/N V52600-543 (Continued) l @v pneumatic force to decrease. As this pneumatic force a decreases, the main spring force " closes" the main seal piston. When in the closed position the outlet port is isolated from the inlet port by the main seal, which seals against a metal seat in the valve body. The main scal is a polyimide seal captively retained in the valve piston. Th'e pilot seal is a solid polyimide pin. Upon removal of coil voltage, the valve will remain latched in the closed position by the same set of magnets which held the valve latched in the open position. The solenoid assembly is designed and constructed to be in accordance with the requirements of NEMA 4. s The solenoid assembly incorporates two indicating switches which indicate valve open or closed positions. Valve position indication is identified by the closure of the indicating switch contacts. The switches are reed switche.- which are actuated by a hermetically , scaled magnet assembly attached to the valve plunger. ,m CODE IDENT. 740- SIZE J 96487 A - o-526 . SCALE [ VALCOR CNG. CORP. SHCET 38 l t aL - . . = _ _ _. _- _ . - . . . - . -
.7 y usavv ocaw ~c. n.on.ac e ..c oano usc. ut. or actuar om ac e=couctio~ = wnos c ca m raa r is enow.2irco 8 ovue s o..ct o s u=t i aar *= oac av e or vas c os s ci s e n. s c oa.om as.o l R EV-
~
l 6.3 P/.'! VS2600-557 Valcor P/M V52600-557 is a 2 way, globe type, latching
= solenoid valve designed and constructed to meet the
'ho c1 requirements of the ASME Code, Section III, Class 2.
The body to bonnet interface is a weld seal which makes l the pressure boundary a completely hermetically sealed unit. The design pressure is 600 PSIG at a 300*F temperature. The normal operating pressure range is 0 to 70 PSIG at a 120*F temperature. The minimum design flow coeffi-cient is 1.0. - All materials of construction are radiation compatibic up to accumulated dosages of 2 x 108 Rads.
.v:ed. po-Momentarily (1/2 second minimum) energizing the "open" coil with 105 to 140 VDC causes the plunger and seal '
assembly to shuttle to the open position. Removal of coil voltage will not cause the valve to change state, as the plunger and seal assembly are held in this ) position by latching magnets installed within the solenoid. CODE IDENT. NO. SIZE U 96487 A - cR-s26 SCALE / VALCOR CNG. CORP. l SHECT ,o l A i
, , _ , - _ . . . . ..-. .=- _ -
- - , . - ~ - - - - - -
y
*, u~auruoa.r c o use. wa v,.c,un t naswinc. on sec a=o ovus e o..ct osuoi oms ac ance-couction moec v, or=w oss oa . east is emoscirco va6 con e c.~c ra.~o coneon.v.ou REV-6.3 P/t! V52600-557 (Continued)
When the " closed" coil is momentarily (1/2 second minimum) energized with 105 to 140 VDC, the plunger and seal ascembly shuttle to the closed position and remain latched in the closed position by the same set of latching magnets which previously held the valve in the latched open position. When closed, the outlet port is isolated from the inlet port by a polyimide seal which seals against a metal seat. The polyimide seal is captively re-tained in the valve poppet. b The solenoid assambly is designed and constructed . to be in accordance with the requirements of 11EMA 4. The solenoid assembly incorporates two indicating switches which indicate valve open or closed positions. Valve position. indication is identified by the closure of the indicating switch contacts. The in- , dicating switches are reed suitches which are actuated by a hermetically sealed magnet assembly attached to the valve plunger. CODE IDENT. NO. SIZE
~
(v'; 96487 A "-52c SCALE [ VALCOR ENG. CORP. SHEET 40 __ j p
y
,, v= sut os it o v3t. a u,.crua r on .c e=oc uctio= .= w-out om .= cae r e i o2aw.~ c. n e s.c= . o e, . . o. co o s ua, s ..c ..o.e .,, or v.o c o. e c. c r a.i amo .oir r o ccom,on.,.ou l gy- i i
6.4 P/N V52600-570-1 i
</ Valcor P/N V52600-570-1 is a pilot assist, 2 way, globe type, normally closed solenoid valve designed and con-structed to meet the requirements of the ASME Code,
'Section III, Class 3. The body to bonnet interface seal is an eth'ylene propylene 0-ring.
The design 'nd a operating pressure is 275 psig at a 90'F
. temperature rating. The ambient environment can range from 40 to 120*F at atmospheric pressure. The minimum design flow coefficient is 25. All materials of con-struction are radiation compatible up to accumulated 8
dosages of 2 x 10 Rads. W Energizing the solenoid coil with 112 to 137 VDC causes the plunger to open the pilot seal, venting the pressure from behind the main seal piston through the pilot dis-charge orifice. As pressure decreases behind the piston a pneumatic force develops, which overcomes the spring load holding the piston against the main seat. When the , spring force is overcome, the piston moves off the main seat, opening the valve. CODE IDENT. NO. SIZE
~
(9 96487 A ""-5 6 SCALE [ VALCOR ENG. CORP. SHCET 41 j qi __ _. __ ___ . . _ .m._,____.....__.__-_.._. . P_E 7__l i_'_ C 1_i' '"_ _ _12- __T_"_EE-'
~
1 il # ~ '
.. y
.+ u=4 vtaO2er s o uu. .uus ac evn e no ac e.couctio~ .~ - ou on .= eaa, i eno . sin o OSawthG Ottocee a s.D of wt a Des cL os ua s $ am t peopte97 OF w a L C om g o.Ges s g a sse o c om pom a f SON jgy, l
'l 6.4 P/N V52600-570-1 (Continued) t i
q.) a De-energizing the solenoid coil causes the plunger to shuttle and seal the pilot seat, thereby closing the pilot section bleed. When the pilot section bleed closes, upstream pressure, which is constantly being bled into the back piston cavity through a pilot in-let orifice, causes the differential pneumatic force to decrease. As this pneumatic force decreases, the main spring force " closes" the main seal piston. When in the closed position the outlet port is isolated from the inlet port by the main seal, which seals against a metal seat in the valve body. The main seal is an 0-ring (ethylene propylene) captively retained in the b ~ valve piston. The pilot seal is a solid polyimide pin. - The solenoid assembly is designed and constructed to be in accordance with the requirements of NEMA 4. The solenoid assembly incorporates two indicating switches which indicate valve open or closed positions. - Valve position indication is identified by the closure of the indicating switch contacts. The switches are reed suitches which are actuated by a hermetically scaled magnet assembly attached to the valve plunger.
+
, CODE IDEt!T. NO. SIZE O
- OR-526 V 96487 A SCAL.E / VALCOR ENG. CORP. SHCET 42 j 4
_.-,..-_-~-;--.-.._._,.------.----r-, - -- - - - - , . - - - - -
-*.s- <a we~ 4. - we Aa n ,
e?t n u-n . art'-m u .. - - - -
Ny unaursosents urt. a uracevat om at anoouctio~ e wao6e om s*. paar se caomssic o
, geewinc. or sec a o ov r e o. set osume s mac emocc a r e or vas cos e c.=c c a. s com on aven pgy l 6.5 P/N V54000-30 Valcor P/N V54000-30 is a pilot assist, 2 way, normally
, closed, globe type, colenoid valve. The body to bonnet interface is a weld seal making the pressure boundary
. hermetically scaled.
The design and operating pressure and temperature are 2500 PSIG and 650*F. The maximum operating pressure differential is 3000 PSID. The design flow conditi6n is 26 GPM water at 90 PSID, at room temperature. All materials of construction are radiation compatible up to accumulated dosages of 1 x 10 Rads. b , s Energizing the solenoid with 112 to 137 VDC causes the plunger to open the pilot seal, venting the pres-sure from behind the main seal piston through the pilot discharge orifice. As pressure decreases behind the piston a pneumatic force develops, which overcomes the spring load holding the piston against the main
, seat. When the spring force is overcome, the piston moves off the main seat, opening the valve.
CODC 1 DENT, NO. SIZE d QR-526 (' v; 96487 A SCALC [ VALCOR CNG. CORP. lSHCET 43 j i
" ~
- u nsu s o .s c o u c c. . u, r.=,
r.o n w.>.c. o u i .c . o o n -n a o..ciuse os n r ..oouc s .. c .. o c at.E~ t , .~, o
..os s on .= .. o oneait t REY-c t o s u. 6 c om c ~ c.~ c i a. c c o .o. . n 6.5 P/t[V54000-30 (Con tinued) v >
De'-energizing the solenoid allows the plunger spring v/ l
' to move the plunger and pilot seal onto the pilot. seat, l thereby closing the pilot section bleed. When the i a
pilot section bleed closes, upstream pressure, which is constantly being bled into the back piston cavity through a pilot inlet orifice, causes the differential pneumatic force to decrease. As this pneumatic force \ decreases, the main spring force " closes" the main seal piston. When in the closed position the outlet port is isolated from the inlet port by the main seal, sealing against a metal seat in the valve body. The main seal-seat surfaces are hardfaced with stellite. The pilot lJ ; seal is a solid stellite pin, and the pilot seat is hard- .
- t/ faced.
( v i The solenoid assembly is hermetically sealed by virtue - of all seal welds, and the utilization of a hermetically scaled connector. Reference Figure 1. O CODEIDENT.NO. SIZE
~
96487 A "-5 6 SCALE [ VALCOR ENG. CORP. SHECT 44 l p 1
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4 APPENDIX I TEST SUM.'1ARY OF A LIFE CYCLE TEST ON PILOT ASSIS'? SOLEIJOID VALVE
~
V54000-30 BY COMBUSTION ENGINEERING CORPORATIO?) CODE IDEriT. f40. SIZE QR-526 A (m,a 96487 SCALE [ VALCOft Ct4G. COFIP. SHCCT 50 T
- _ , . . _ - - . _ _ . - . = _ . ---_.. _. = -- - .. _ _ _.
,. CoMou 710N olvisinN CDucWSTION (Hf.Itif f filNf. lHf
, WIN o',n t, f.oN N O G'8 f *e
, o n 3. . . . . , , , , c o n . . .f m , .. <.
n ur=1 L. LAM COMBUSTl0N D!VISIDN April 8, 1974 Mr. B. *,i. Quail . Valcor Engineering
, Eenilworth, Ucv Jersey
Dear Sir:
The following is a numary of the test experience we have accumulated on the pilot assist solenoid valve designed for nuclear service supplied by Valcor Engineering: One solenoid valve P/N V54000-30 is being evaluated in a high temperature
- and high precsure test facility for use in a hydraulically operated nuclear reactor control cystem. Our evaluation of the unit has consisted of the following:
- 1. 225,000 cycles of operation fiowing reactor chemistry water renintained at 600*F, 2500 psi. Ambient conditions on the outside of the valve and
'y
- the coil have been maintained as high as 450*F for extended periods of time
- 2. The valve has been subjected to a total of 1200 hours of hot loop opera-tion at the above conditions.
- 3. With the. execption of mechanical binding of the plunger which was easily corrected early in the program, valve operation has been completely sat is-lactory. Seat Icakage remains belou our specification limits. -
- 4. Evaluation of the unit in continuing.' It will noon he placed in a facil-
.ity where operation in the presence of magnetite and other recetor "cand" .
constituents will he evaluated. Very truly youra, [ * ' [,am sj(frvma., FILMED FROM BEST~ AVAILABLE COPY
, Duane Groves -
DC:DA , l
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