ML17053A857

Rept Re Limitorque Valve Operator Test Under Simulated Reactor Containment post-accident Steam & Chemical.Prepared for Philadelphia Gear Corp

ML17053A857
Person / Time
Site:	Nine Mile Point
Issue date:	11/30/1968
From:	NIAGARA MOHAWK POWER CORP.
To:
Shared Package
ML17053A854	List: ML17053A853 ML17053A855 ML17053A857 ML17053A858 ML18037A184
References
F-C2232-01, F-C2232-1, NUDOCS 7907300175
Download: ML17053A857 (84)

Text

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FINAL REPORT F-C2232-Ql Report TEST OF A L'IMITOR(UE VALVE OPERATOR UNDER A SIMULATED REACTOR CONTAINMENT POST-ACCIDENT STEAM AND CHEMICAL ENVIRONMENT by R.

C1yde Herrick LeRoy E.. Witcher prepared for The PhiladeEphia l"ear Corporation Eing of'russia, Pennsylvania

November, 1968 0 (75<

~oggSO THE FRANl<LlN lNSTITUTE RESEARCH LABORATORlES BENJAMIN FRAIIKLIN PARKWAY

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PHILAOEI PHIA, PENNA.

IO l03

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CONTENTS, LIST OF FIGURES LIST OF TABLES

SUMMARY

I.

'NTRODUCTION II.

EOUIPMENT TESTED

~ g lv III.

TEST DISCUSS ION A. Measurements B. Test Sequence and Observations

'APPENDIX I Test Data Sheets APPENDIX II Performance Test Data of Limitorque Valve Operator ADDENDUM I Oriqinal Recording of Limitorque Power Consumotion ADDENDUM II Oriqinal 7

10

'23 29 ADDENDUM III Oriqinal ADDENDUM IV

'riqinal Recordinq of Valve Seatinq Force Recordinq of Test Chamber Pressure Reductions I I THE FRANKLIN INsTITUTE REsEARGH LABOAAToRIEs

LIST OF FIGURES Figure No.

Test Facility Before Test Test Facility After Test Schedule of Test Environments Recording of Initial Pressure Rise to 90 psig.

Limitorque and Motor-Brake Before Test Limitorque and Motor-Brake After Test Limit Switch Compartment Before Test Limit Switch Compartment After Test 19 20 21 22

~It THE FBANKUN INSTITUTE BESEABCH IASQBATQllIES

LIST OF TABLES Tab 1 e 1

Collected Data Performance Test Data of Limitorque Val ve Operator)

Appendi x II Pace 30 Table 2

Averaoe and Peak Values (Pe rfo rma nc e Test'ata of Limitorque Val ve Operator)

'ooendi x II Paqe 31

~II THE lRANKUN 1NSTIITUTE RESEARCH lABOIIATOlllES

SUMNRY A Model Sg'B-0 Limitorque'Valve Operator manufactured by The Philadelphia Cear Corporation was tested by The Franklin Institute Research Laboratories for performance under steam and decontaminate environments existing in water-moderated reactor containments following some credible accident.

The Limitorque operator plus an additional motor-brake assembly was tested in accordance with Level 4 of the Standard Draft, dated June 7, 1968, prepared by Sub-Committee 2 (Equipment Qualification Testing) of the IEEE/NSG/Technical Committee for Standards.

Actual tests were begun on October 31, 1968 and continued for seven full days.

The Limitorque Valve Operator continued to operate throughout and after the environmental test.

Xt was necessary to sequence start the operator to unseat it from the full closed positi'on after the 20 psi pressure level was reached.

The geared limit switch bypass around the open torque switch was apparently set too close to the full closed position.

This caused the torque switch to momentarily open and stop the operator before it had unseated the valve stem.

It is our understanding that this could be corrected by setting the geared limit bypass switch to trip open after the valve stem is unseated.

Tha envirotcsent did effect the 'geared limit switch as was evidenced at the end of the firsc 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period when the himitorgue operator went to the full open position and stopped by the open r

~ll THE TRANKUN INSmUTE RESEARCH LASORATOIUES

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limit torque switch rather than by. the open position geared limit switch.

Boch indicating lights remained on even though the. valve stem had been moved to the full open position.

At the end of the seven day environmental

exposure, the

~Limitorque operator, closed the valve stem normally, however due'o

~ the failure of the geared lim't. switch, a pumper wire had to be used to bypass the switch to allow the Limitorque operator to open the valve stem fully.

The motor brake assembly operated satisfactorily throughout the test.

~

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I t THE FRANKUN 1NSTTt'UTE RESEARCH LABORATORKS

0

. I.,

INTRODUCTION Following discussions between staff members of The Philadelphia Gear Corporation and The Franklin Institute Research. Laboratories (FIRL), an agreement was signed under which PIRL would test a

Limitorque valve operator and a separate motor-brake assembly under simulated reactor post-accident environments.

This is the final report. of that test program.

The conditions simulated for the test we'e the pressure-temperature-humidity (saturated steam) environments and the chemical environments that could be expected to exist in the containment vessels of water-moderated power reactors following some credible accident such as the rupture of a major reactor piping assembly..The particular conditions simulated are those set forth in the IEEE Standard Draft, dated June 7, 1968, of the IEEE/NSG/Technical Com-mittee for Standards, Subcommittee 2 (Equipment Qualification Test-ing) as transmitted by Philadelphia Gear letter, Lawson to Witcher (FIRL), on July 16, 1968.

The test was made in accordance with the applicable portion of-this standard with one exception:

the pressure

- specified to be 5 psi between 24 and 168 hours0.00194 days <br />0.0467 hours <br />2.777778e-4 weeks <br />6.3924e-5 months <br /> after test initiation as shown in Figure 3, page 9 of the IEEE standard was changed to be 15 psi.

This change was requested, by Philadelphia Gear in the letter of July f6, 1968 previously cited.

It must be emphasized tha" this test program was for the'mergency steam and chemical environmental conditions only.

Pre-conditioning tests including radiation aging, heat aging, and shock tests were not included in the program at PIRL.

Neither were post-test inspections or other acceptance criteria.

~II THE IBANKUN INSTITUTE RESEARCH LABORATORIES

II.

EQUIPMENT TESTED The equipment tested was (a) a Limitorque valve operator and (b) a motor-brake assembly as identified and described below.

(a)

Name Plate Information of Valve 0 erator Test Unit 1

NAME:

SMB-0 Limitorque Valve Operator Order No.. 600198 MANUFACTURER:

Philadelphia Gear Corporation MOTOR:

Reliance Built Torque Motor Identification No. 435571-JTR START:

RUN:

15 ft.-lb.

3 ft.-lb.

TYPE:

PHASE:

CYCLES:

CODE:

60 FRAME'PM VOLTS:

AMPS:

M56 1700 230'/460 5,6/2.8 Temp. Rise at Run Torque of 15 Minutes:

75 c Type H Insulation Gear Unit Tll(THE ITIANKIJN INSTITUTE RESEARCH IABO!IATORIES

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(b)

Tor ue Motor with Brake (Test Unit 2 MOTOR MANUFACTURER:

Reliance Electric Company 3300 10th Street

Columbus, Indiana IDENTIFICATION 8: 442010-JTR START:

RUN:

TYPE:

PHASE:

CYCLE.

CODE:

15 ft.-lb..

3 ft.-lb.

60 FRAME:

RPM:

VOLTS:

.AMPS:

1700 230/460 5.6/2A8 Rise at RUN Torque:

75'C (15 minutes)

DINGS MAGNETIC DISC BRAKE MODEL:

6-61009-50 SERIAL NO:

157010 VOLTS:

230

.Continuous Duty TORQUE:

3 ft.-lb.-

'~ll THE IRANKUN INSTITUTE RESEARCH LABORATORIES

III.

TEST DISCUSSION The tests were conducted in an environmental test facility installed at FIRL.

Figures 1 and 2 show the central part of the facility including the test chamber with the Limitorque and motor-brake assembly mounted (Figure 1).

Both figures show the chamber

'emperature recorder mounted on the upper right wall, the dual channel pressure recorder mounted directly below and the Limitorque and brake assembly temperature recorder mounted under the right hand table.

On the back wall are mounted the Limitorque and motor-brake controls.

. Power leads to the motor-brake and the Limitorque are brought from the panel board to a )unction box mounted above the vessel.

From the )unction box, Teflon insulated fI12 wire was brought through the vessel wall in Conax feed-through fittings and thence to the'imitorque and the motor-brake.

The Sanborn recorder shown in Figure 1 was used to measure the valve seating force as measured by strain gages on the valve stem guide protruding to the left from the tank.

The facility was pressurized by a two inch steam line from the PIRL building steam mains.

The fast pressure rise was achieved by quick-opening valves in the steam line.

Subsequent regulation was performed by a Spence regulating valve.

En order to achieve the fastest possible rise in steam pressure in the test chamber an additional 2 inch line was placed to the chamber by-passing the regulating valve.

This allowed an empty vessel rise from zero gage pressure and 140'F ambient to 90 psig in 8 seconds.

Pressure rise time with the, Limitorque was somewhat greater as described in the actual tes t procedure.

TIIITHE TRANKUN INSTITUTE AESEARCH IABORATORIES

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A'.

MEASUREMENTS (l)

Tem erature inside-unit and limit-switch corn artment Limitor ue 0 erator:

Temperature was measured by means of four.thermocouples installed in the Limitorque Operator.

The valve operator was received by FIRL with three thermocouples already installed in the motor windings.

One additional thermocouple was installed by FIRL in the

'limit-switch compartment.

I Motor-Brake Assembl:

Temperatures in the brake assembly were also moni tor ed by three thermocoup les ins tailed prior to delivery to FIRL.

Two were in the motor windings and one was in the brake assembly.

All temperatures in the Limitorque and the motor-brake assembly were recorded by a separate multi-point temperature recorder.

(2)

Motor Volta e Am s and Watts A polyphase recording watt meter was used. to record the power input to the Limitorque test unit.

In addition, three indicating voltmeters and two ammeters were read during each operation of the motors.

These data are given in Tables 1 and 2.

No measurements or recordings were made for the motor-brake assembly..

l I THE FRANKUN tNSmUTE RESEARCH LABORATORlES

I

(3)

Tem erature and Pressure Inside Environmental Chamber The environment and test chamber temperatures were recorded throughout the seven day test with thermocouples at strategic locations.

The temperatures recorded vere the chamber steam temperature (1), tempexature in the valve operator switching compartment (2), the tank wall tempera-ture (3), and,the inlet steam (4).

t Pressure was monitored visually by. means of a precision mechanical gage and by a pressure transducer for the analog recordin of g

pressure by a two-pen potentiometer recorder.

The other en of th p

he pressure recorder was used in conjunction

~with another transducer to measure and r d

recor pressure in the limit-switch compartment of the Limit 1

m 'torque va ve operatox.

(4)

Boric Acid Concentxation and H of Condensate In lieu o~'

eu of'measuring the concentx'ation and pH of the con-

densate, a solution of 1.5% (by weight) boric acid in water was prepared and stored in a cooler vat.

This solution and only this solution was pumped into the environmental chamber.

The condensate was not recirculated but was xained from d

the tank overflow as the fresh solution was infected.

The boric acid used to simulate the po t-

'd p s -acci ent spray was prepared by dissolving seven pounds of technical grade boric acid (HSB03) in 55 gallons (460 pounds) of deminerali-zed water.

The solution was prepar d

80'F e

at to facilitate the solution of the boric acid cx'ystals.

A 50% solution of reagent grade sodium hydroxide (NaOH) was used to titrate the boric acid solution to obtain a stable pH of 7.67 as measured with a Beckman pH meter.

,8 ll THE FRANXUN 1NSTITUTE RESEARCH LABORATORIES

Preparation of the solution was made in a stainless steel chiller tank, equipped with a stirrer and cooling controls.

The solution was cooled to 21.5'C (70.7'F) for the test.

'Eight gallons of'olution was used to fillthe test chamber auxilliary heaters. for the pre-heat cycle and to provide a boric acid source for the initial test.

Boric acid flow rate was measured with a Brooks Flow Meter.

The solution was then 'pumped into the spray manifold in the test, chamber. by a high head centrifugal pump.

(5)

Valve 0 erator Seating Force in Valve Closed Position The valve operator seating force was measured by a full strain gage bridge on the valve operator external stem drive, which was calibrated by a pre-calibrated load cell.

During the test, this force was recorded on one "channel of a 'two-channel, Sanborn recorder.

(6')

Motor Xnsulation Resistance Before and After Test Motor insulation resistance was measured with a megohmeter at the motor terminals before and after the test.

Since power was supplied to the motor with Conax gland power fittings with Teflon insulated wire, the insulation resistance of these leads were also measured with the megohmeter.

(7)

The Limitorque unit was tested with the limit-switch com-partment as an integral unit.

A transmitting potentio-meter indicating the valve stem position was operated through-out the test in addition to the indicator switch for the external "open-close" light.

A check valve replaced a ball-check grease fitting o'n the gear housing, with the free flow into the test, chamber.

TIIITHE TRANKUN INSTITUTE RESEARCH EABORATOMES

B ~.

TEST'E UENCE AND OBSERVATIONS.

(1)

Simulation of Lon Term Ambient Prior to beginning the actual.test the Limitorque and motor brake were slowly brought up to a temperature of 140'F at atmospheric

pressure, in 'order to simulate the long term ambient prior to an accident.

This, in our test

chamber, was accomplished by periodically introducing a small 'amount of steam from the mains in addition to heating the condensate in the bottom of the test chamber with the electric heaters'2)

Start of Test Upon reaching the 140'F ambient level, the actual test was

.begun. at 3:15 p.m.

on Octob'er 31, 1968 by suddenly admitting steam to the test chamber.

The pressure was brought up to and held at 90 psig, in accordance with Figure 3.

The rise time was 14 seconds as recorded by two observers using stop watches and precision gages as reference.

A precision

'echanical pressure gage was the primary instrument used at this time although pressure transducers were operating with a two-pen recorder for the purposes of recording chamber pressure and limit-switch compartment pressure.

Figure 4

shows the pressure rise in both the test chamber and the limit switch compartment of the Limitorque.

The recorded pressure variation in chamber pressure upon reaching-the 90 psi. level was caused by a leak in the pressure transducer at that time.

lt THE FHANKUN INSmUTE RESEARCII LABOIlATORIES

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$+7 BORIC ACID SPRAY FIGURE 3 SCHEDULE OF TEST ENVIRONMENTS Saturated Steam Pressure Cycle and Limitorque Operation Cycle 4 = ONE VALVE OPERATOR CYCLE 10 0

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4 - Recording of Initial Pressure Rise to 90 psig.

(3)

Limitoraue 0 eration

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B Six minutes after the beginning of the test the Limitorque and motor.-brake assembly were each operated through one comple te cycle.

Opera tion was normal.,

(4)

Start Boric Acid Sora Forty minutes after the start of the test the boric acid spray was started.

3.'.5% boric acid, buffered with sodium hydroxide to a pH of 7.67, was supplied at lO gal. per hour in a downward spray pattern over the Limitorque casing and control compartment for the next four hours without interruption.

(5)

Limitor ue 0 era tion Fifty-five minutes after the start of the test-the Limitorque and 'the motor-brake were each operated through one complete cycle.. Operation was normal.

(6) 'ressure Reduced to 70 si One hour after the start of the test the pressure was reduced to 70 psig in the test chamber within a period of three minutes.

(7)

Limitor ue 0 eration Seven minutes after reaching the 70 psig saturated steam conditions in the test chamber the Limitorque and motor-brake were again operated through one complete cycle.

Operation was normal.

(8)

Limitoraue 0 eration Five minutes before going to the 40 psi level the Limitorque and motor-brake were again operated.

Operation was normal.

flllTHE TRANKUN INSTITUTE RESEARCH IABOIIATO!UES

(9)

Pressure Reduced to 40'i Three hours after, the start of the test the pressure in the te'st chamber was reduced to 40 psig, by adjusting the regulator valve in the steam supply line and by running cold water through the condenser coils inside the test chamber head.

The change from 70 psig to 40 psig was accomplished in five minutes.

(10)

Limitor ue 0 eration Five minutes after reaching the 40 psig saturated steam con-ditions in the test chamber the Limitorque and the motor-brake were again operated through one cycle., Operation was normal.

(ll) Boric Acid Spray Stop ed The boric acid spray which had been supplied continuously for four hours in'a spray pattern over the Limitorque was stopped.

Ho further chemical environment was simulated.

(12)

Limitoroue Operation Five minutes before the end of the two hour 40 psig saturated steam condition the Limitorque and motor-brake were again operated.

Operation was normal.

(13)

Pressure Reduced to 20 si Five hours after the start of the test the pressure regulator was ad)usted from the 40 psig setting to the 20 psig setting.

Cooling water was also supplied to the cooling coil in the chamber head.

This accomplished the transition from 40 psi ps g

to 20 psig in four minutes.

I I THE RiANKLININSTITUTE RESEARCH LABORATORIES

(14)

Limitor ue 0 eration Five minutes after reaching the 20 psig level, the Limitorque and the motor-brake assembly were operated through one

- complete cycle.

The motor-brake assembly operated normally.

The Limitorque operated, but its operating characteristics had changed.

lt closed normally,, but to open the unit it was found to be necessary to goggle the open and close buttons in sequence to start up the unit.

Once started, it operated satisfactorily, but the opening time was 112 seconds instead of the normal time of 110 seconds.

The absence of a peak in motor'orque at the end of the opening stroke signified that the opening stroke was stopped as usual by the limit switch.

(15)

Limitor ue 0 eration Nineteen hours after the previous Limitorque operation and five minutes before the end of the 20 psig condition, the units were operated once more.

The motor-brake operated normally.

The Limitorque closed properly, but upon opening the controls needed to be sequenced rapidly

'between "open" and "close".

As before, once started, the Limitorque operated satisfactorily but this time the recorded rise in torque at the end of the opening stroke

~signified that the full open limit stop was reached, thus indicating that the preset limit switch failed to stop the opening s t;roke.

(16)

Pressure Red'uction to 15 os'wenty-four hours after the start of the test the pressure was reduced from 20 to 15 psig.

This was accomplished as before by adjusting the regulating valve and running cold water through the cooling coil.

Pressure reduction time was TIIITHE IRANKEIN INSTITUTE RESEARCH IABORATORIES

seven minutes.

No further change in pressure was made before the end of the test.

(17)

Limitor ue 0 eration The test units were operated five minutes after reaching the 15 psig condition.

The motor-brake operated satisfactorily although it appeared to be noisy f'r a short period of time with the brake released.

The Limitorque operated as in the immediately preceeding operation (Sequence

15) except that the position limit switches were not operating.

The Limitorque operated satisfactorily but it had to be sequenced rapidly between "op<<" and "close" to unseat the stem when in the cl.osed position.

(18)

Limitoraue 0 eration Six full days (144 hours0.00167 days <br />0.04 hours <br />2.380952e-4 weeks <br />5.4792e-5 months <br />) passed while the units remained in the 15 psig saturated steam environment before the units were operated once more.

The motor-brake operated satisfactor-ily.,

The Limitorque closed satisfactorily but this time the

.unit would not reverse to un-seat the valve stem on the open-ing cycle.

Rapid sequencing of the "open". and "close" buttons as done previously was to no avail and so a pumper was added to the controls on the panel board to reverse the Limitorque.

This was successful and the Limitorque opened sa tisfac torily.

(19)

Pressure Reduction to Atmos here Following the Limitorque operation of sequence 18 the pressure vas reduced to the atmospheric pressure of the lab.

This was done by circulating water through the cooling'oil in the chamber head and later by slowly pumping cold water into the condensate well of the chamber.

16

'l THE FHANKUN tNSTITUTE RESEARCH LABGRATOMES

The cooling operation before venting required approximately thirty minutes.

(20)

Condensate Samolin Before pumping water into the condensate well to cool the I

test chamber a sample of condensate was drawn and tested for acidity..

The condensate had a

pH of 8.20 which was believed to represent the pH of the steam from the supply mains (Philadelphia Electric Company).

~

By this time most of the boric acid should have been diluted and carried away by the steam condensate.

(21) 0 enin of Test Chamber Approximately one hour after the end of the seven day tes,t (L68 hour) cycle the tank was opened to inspect the units de un r test.

(22)

Visual Ins ection of Test Units Figures 5 and 6 show, respectively, the test units immediately before and after the test.

It is obvious that the steam and chemical environments had a very corrosive. effect upon the units, especially upon the paint.

However, as described in this test sequence, the units operated, even to the hand-wheel which was tested and found to be satisfactory, Figure 6 shows a certain amount of crud in the bottom of the tank.

This was found to be (a) grease that had come out of the checkvalve, and (b) the remains of the visual position indi-cator which had been severly attacked by the environment.

. The plastic had melted and had apparently foamed.

ll T1K'FRANKUN 1NSTlTUTE RESEARCH LABCRATOR1ES

I

Figures 7 and 8 show the effect of the environment upon the limit switch compartment.

The environment had penetrated the compartment and had lightly attacked certain components.

This was evidenced by the previously discussed malfunction of the position limit switches as well as by the visual inspection.

(23)

Limitor ue 0 eration The Limitorque was operated once more before it was removed from the test chamber for return to the Philadelphia Gear Corporation.

The operation was as described in sequence The pumper on the control panel was necessary for reversing the motor from "close" to "open".

18 flllTHE FTIANKUN INSTITUTE RESEARCH LABOIIATQRIES

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AP ENDIX I TEST DATA SHEETS 23

~ll THE FRANKUN INSTITUTE RESEARCH LABO)IATOIUES

31'-C2232-,01 h

ENVlROi&fENT TEST CYCLE

'TEST LEVEL I Time at Start of Test:

( (

Jl IV(l Hour'nitial Pressure

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Temp.

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i Seconds Chamber:

Press.

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psig C

~

~

.Unit Press.

psig Temp. ~>'1

'P Temp.

31I-C2232-0 l ENVIRONMENT TEST CYCLE TEST LEVEL HO.

DESIGNATED STE'if PRES 8.

PSXG SATURATION TEMP.

3 /4

'F Time L'ayel Reached:

f

'to Hours

'ime.from Previous Level:

~

~

'hamber Press:

7G psig Minutes Temp.:

v se BID

~ &

e su 3

'F

\\

Test Unit:

Temp.

3 /2.

'F Press.

7O Psig First Test

~ Cycle of Motor at this Level:

Time e 6 2 ~ 'ours Borf.c Acid Stvr~a Floe Rata

'Q Temp. ~~0'F PH~~c7 Second Test Cycle of Motor at this Level:

Time: ~/V 0

Hours End of Level No.

Time:

'T. ()

Hour Chomhor Ton.p.

+

~~

'P

'nit Temp.

+

~ +

'F Press.,

~+

Psia.

25

E

)

'3.

31I-C2232-01 ENVIRONMENT TEST CYCLE Date ~Q g

r TEST LEVEL NO.

DESIGNATED STEAM PRESS.

2 C'SIQ SATURATION TEMP.

~~5

'P Time Level Reached: 'O 7 2- 'ours Time from Previous Level:

Minutes amber Press:

psig Temp.: 2.7X Test Unit:

Temp.

27I F

Press.

Psig First, Test Cycle of Motor at this Level:

Time:

Z~ 3~ 'ours a

Boric Acid S~ra~

~

Flow Rate norw.

Temp e

'F PH

Ylov,

(~ t~C ~

Second Tes t Cycle of Motor at. this Level:

Time:

!5 I +

Hours End of Level No.

Time:

/5 7

Hour a

Chamber Temp.

5 6

'F

'nit Temp,'. 0 ~

'F

Press, Press.

P

'2- <

Psig 26

l I

31I-C2232-Ol D t OC

. 3/~tan J-~

V~

ENVXRONifENT TEST CYCLE TEST'EUEL NQ.

DESIGNATED STEAM PRESS..

00 PSZG SATURATION QF7 Time Level Reac?ied:

Hours Time from Previous Level:

0 Minutes Chamber Press:

psig Temp '~+

'F Test Unit:

Temp.

2 8 7

'P Press.

0 Psig

~

~"

First'est Cycle of Motor at this Level:

Time:

I'6Z ~ 'ours s

a Boric Acid S~ra Floe Rate ~~+

Temp.~

'F P}i

~~ 4 2.

~s3 6(Irate

~got~~g ok"

'gp5 kouu S Second Tes t Cycle of Motor at this Level:

Time:

2-0 9 Hours

~End of Level No.

Time:

( <

Rour Chamber Temp.

2 ~I

'P Unit Temp.

Press..~(

0 Pais.

Pres

. ~P~

Psig

C I

0

,~

~

31I-C2232-01 ENVIRONMENT TEST CYCLE Date%os'

/14 g,f.d.4M TEST LEVEL NO.

DESIGNATED STF~

PRESS.

/~

PSIG SATURATION TEMP.

O Time Level Reached:

~~2 Hours

(

~

'7 Minutes

'ime from Previous Level:

~

~

~

Chamber Press:

Test Unit:

Temp.

M~~

'F psig

~ ~

I Z 5 oF Tempos Press. g ~

Psig First Test Cycle of Motor at this, Level:

Time:

I<><

Hours g

/ >(5 Are( pomi~ Im.(ruue(

C.mok~hq aQvau)(

gor-7

~

Flow Rate Temp.

'F PH Second Test Cycle of Motor

.zV at this Level:

Time:

Hours End of Level No.

~

Time:

l 9 ~

Hour Chamber Temp.

2~

P

'nit Temp.

oF Press. J~

Peag.

Press.

) f. 3 Psig

I ~

~

Q ~

APPENDIX II.

- - "Performance Test Data of Limitorque Valve 0 erator Table 1,.Collected Data.

Table 2, Average and Peak Values.

~II THE IRAHEUN INSTITUTE RESEARCH IABOBATOR!ES

TABLE 1.

831=C2232-01

. PERFORMANCE TEST DATA OF LIMITOROUE VALVE OPERATOR COLLECTED DATA Test Pres.

Psig Tlllle

'10/31 Line Volt.

1-2 3-1 A-C 3-2 Current 1

3 Stem Travel Per. Stg.

Close Open KM For-lbs.

Seconds 90 1521 1524 1610 1613 504 504 500 500 1502 500 1506 504 512 514 516 516 512 514 498 498 500 500 500 500 2.86 2.75 2.85 2.65 2.80 2.68 3.08

.50 16,500 2.95

.51 3.00

.53 16,500 2.60

.60 2.97

.51 16,500 2.83

.55 110 110 110 1

110 110 110 70 1625 1628.

1810 181 3 500 504 506 508 514 516 500 518 504 518 504 2.68 3.05 2.73 2.92 2.97 2.89 3.07 2.98

.50 16,100

.52

.50'6,500

.56 16,500 110 110 110 110 40 1831 2010 20]4 508 508 508 1828 508 520 520 520 518 504 504 "504 504 2.95 2.84 2.98 2.83 3.10 3.00 3.10 3.02

.50 16,500

.52

.50 16,000

.51 110 110 1

108 107

'0 2031

'0.39 11/1 1510 1'513 508 508 500 500 520 520 514 514 504 504 496 496 2.85 2.70 3.00

.46 17,500 287

.47 2.96 3.10

.50 17,000 2.84 3.02

.51 110 110 112 112 15 1528 1532 500 500 514 514 496 496

2. 84 2.70

?.98

.46.

17,800 2.90

.50 115 118 ll/7 1528 498 not recordell Final 500 Final 500 514 514 514 514 496 496 496 496 2.98 2.72 30 2.82

.43 17,200 111 2.89

.50

.46 17,000

.50 flllTHETRANEEIN INsTITUTE REsEARGH IABQRATCRIEB

Oct.

31 31 I-C2232-01 TABLE 2.

Average and Peak Values PERFORMANCE TEST OF LIMITOR UE VALVE OPERATOR Test.

Pressure Ave.Volt-Ave.

Peak Power Peak

, age -3 a

Current Current KW 503.3

~ 509.3 2.97 2.85 3.40 1.30

.90 70 40 20 15 506.7 506.7 504 504.7 503.3 506.7 509,3 510 510.7 510.7 510. 7 510 510. 7 510. 7 503.3 503.3 503.3 503.3 503.3 503.7

- 2.92 2.62 2.88 2.76 3.01 2.80 3.00 2.89 3.02 2.92 3.04 2.92

3. 03 2.93 2.92 2.78 2.91 2.80 2.90

.2.80 3.45 Missed 3.30 3.40 3.30 3.30 3.40 3.40 1.57 1.15 1.54 2.00 1.50 1.40 1.45 '.

.85 1.44

..78 1.39 1.21 1.45

.76.

1.35 1.09 1.42 1.48 1.52

.88 Final Fi na 1 503.7 507;7 1.52

.95 31

~II THE FRANKUN INSTITUTE RESEARCH IABORATQRIES

C

~

PHOTOGRAPHS OF LIMITORQUE OPERATOR PARTS DISASSEMBLED AFTER ENVIRONMENTAL TEST

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PH:II ADELPMIAGHAH, COH.PORATION industrial gears

~ speed reducers fluid mLccrs

~ limitorque value controls precision ground gearing Main OEcor Schuylhll Expressway, Suburban Pbila.

KING OF PRUSSIA, PA. 19406 TELEPHONE: 266-3000 May 2, 1969 Niagara Mohawk Corporation 300 Electric Building

Buffalo, New York 14203 Attention:

Mr. Steve Podk winski

Subject:

Addendum Number I To Test Report Of Limitorque Valve Actuator In Nuclear Reactor Containment Environment

Reference:

d Gentlemen:

Report of January 2,

1969 You previously received a complete test report, dated January 2, en-t.it;led:

"TEST OF LIMITORQUE VALVE OPERATOR TO MEET GENERAL REQUIREMENTS OF AN ELECTRIC VALVE ACTUATOR IN NUCLEAR REACT R CONTAINMENT ENVIRONMENT" Addendum Number I to this report is submitted for your informat:ion.

Please include this Addendum Report as part of the original Test, Report, dazed January 2,

1969.

1 t:rust this Addendum will be circulated among your various Engineers involved with t.his equipment.

Very truly yours, PHILADELPHIA GEAR

.ORPORATION KFb.mb encl.

sales and enyrineering offices in all nlnjor cities Edward F.

Lawson, Sales Manager Limitorque. Di.vision