ML20094N587
| ML20094N587 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 02/14/1992 |
| From: | PHILADELPHIA GEAR CORP. |
| To: | |
| References | |
| CIVP-S-052, CIVP-S-52, NUDOCS 9204070020 | |
| Download: ML20094N587 (73) | |
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-.- , ,, , y, DOCUMENTATIONi c' .
~92 MAR 13 P12:07 .-
'h PHIIADELPMIA GEAR CORPORATION ; . cr in,,v KING OF PRUSSIA, PENN.194067),{' J' WO LIMITORQUE VALVE CONTROL f.
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TEST OF LIMITQRQUE VALVE OPERATOR
. TO MEET GENERAL REQUIREMENTS - '
OF AN ELECTRIC VALVE ACTUATOR j IN
- j. -
NUCLEAR REACTOR CONTAINMENT ENVIRONMENT TEST REPORT i
BOO \cl8 F-c usz.-oi
.- JANUARY 2, 1.969 9204070020 920214
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010015 INDEX
- SECTION A -
NUCLEAR ENVIRONMENTAL TESTS
- 1. Report Dated January 1969
- 2. Rehort F-C3441 Dated September 1972 SECTION B -
SEISMIC TEST REPORTS 1.. Electric operators -
- 2. Manual Operators
, 3. Electric operators with Manuals 1
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010016 i -
. NUCLEAR DWIRONMENTAL TESTS
- 1. Test report dated January 2, 1969 Addendum #1 35 Hz. - 5.3 G's (report #2539A-4723, Sept. 1970)
- 2. Test report #F43441 dated September 1972 *
. - ' Appendix "A" _
Test Data Log Sheets Appendix "B" List of Instruments used in obtaining Test Data Appendix "C" Radiation Report Appeildix "D" Seismic Report k
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- " TEST RIPORT - JANUARY 2, 1969 f ENGINEERING ORDER NO. 600190 010017 l l
The Limitorque valve operator tested was Model SMB-0 with a ,
- .* l 15 foot pound, 3 phase, 60 cycle, 440 volt motor, with special high temperature motor insulation and high temperature resistant non-metallic component's, to withstand the contemplated steam pressure, high temperature and chemical conditions expected in the event of a nuclear reactor failure within the containment vessel. The Limitorque operator was wired for a torque seating control for closing direction and position limiting control for open direction.
A 2 3/8" diameter by 1/4" pitch, 1/4" lead, left hand stem was used -
to simulate the stem of a valve being opened and closed The speed, of operation was approximately 6" per pinute over. a 12" tra rel.
The des gned seating' thrust to be exerted on the stem by the Limitorque valve control was 16,500 pounds of thrust in the closed position of the valve stem. A slide wire electric position trans-mitter was also installed and connected to a remote position receiver outside the test chamber.
TESTS TO BE PERFORMED ON OPERATOR
- 1. Preliminary heat tests on component parts.
- 2. Preliminary heat tests on actuator.
- 3. Preliminary live steam test on actuator.
- 4. Hett aging test of electric motor and electric motor with brake.
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- 5. Shock cnd vibrotion tost of cetuotor to simuloto soismic
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., conditions. .
- 6. 150 life cycle test of actuator producing approximately 16,500 .
pounds of thrust.
- 7. Test of Limitorque valve operator and electric brake motor _'.
under a simulated reactor containment post-accident steam and chemical environment.
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- 1. PRELIMINARY Hr.AT TESTS ON COMPO!ENT PARTS 070019 The standard Limitorque operator geared limit rwitch and terque switch was subjected to a dry heat test for approxi-mately 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> at a temperat'une of 375'F. Periodically
. . during this test, the switches were removed from the oven and.
actuated by hand. The operation was satisfactory and no mal-
. functions occurred. All parts functioned freely and there was no binding, jamming, nor abnormal distortion of parts. The test was successful in all respects.
! 2. PRELIMINARY HEAT TESTS ON AC"'UATOR A completely assembled and operational Limitorque operator was placed in an oven where the temperature was maintained at approximately 325'F. for a duration of 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. The unit was electrically operated every thirty minutes for a period of approximately two minutes per cycle and using the geared aimit switches to stop the actuator at the full open and full closed position of travel. Indicating light circuits were also wired to the geared limit switches.
The test was successful in every respect. There were no malfunctions of the operator and upon ihspection of the com-ponent parts used, there was no noticeable deterioration or wear.
The lubricant used in the geared limit switch did become hard and caked, however the lubricant used in the Limitorque 3
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t , ise, gccr hcusing rem 31nad plioblo cnd had its originci concistency. ,
It was determined that the grease in the geared limit rwitch gear. housing should be changed to the same grease as in the Limitorque operator gear housing. , ,
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0300g0
- 3. PRELIMINARY LIVE STEAM TEST ON ACTUATOR A complete Limitorque actuator was set up for electrical operation and live steam was piped into the conduit taps on the top of the limit switch con.partment. One of the bottom conduit taps was left open to drain off any condensate. The operator was set up on a timer basis for operation over a period of approximarely nine hours and operating eYory thirty minutes for two minutes per cycle. During this test, tne live steam in the switch compartment seemed to have no effect whatever on the function of the limit rwitche's in their control of the operator at the full open and full closed position of travel.
In addition, the limit switches were uired up to indicating lic'1ts which operated satisfactorily, the test was successful and there was no noticeable effect a
on the function of any of the parts in the limit switch com- .
s
- partment.
- 4. HEAT AGING TEST OF ELECTRIC MOTOR AND ELECTRIC MOTOR WITH BRAKE j
. The electric motor for the Limitorque operator to be used intheenvironmenttestandanotherelectr[cmotorequipped with a disk o type brake were subjected to a heat aging test.
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030021 e- . Both cloctric motoro waro sont to Rolionco Elcetric Co. for heat age testing. This test consisted of baking the motors at a. temper.atu.r.e of__180!c,_ for a total of 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> to simulate aging the motor to a[40 year life expectancy. Motor insulati6n
. checks were made and found to be within normal limits. There. ,
were no adverse effects on the motors and motor insulation reaistance measured infinity to ground.
- 5. SHOCK AND VIBRATION TEST OF ACTUATOR TO SIMULATE SEISMIC ;
CorIDITIONS
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l The Limitorque operator to be used in the environment test was shipped complete to the Lockheed Electronics Co., in Plain- i field, New Jersey, for shock and vibration testing to simulate seismic conditions. A copy of this report is enclosed herewith.
The test basically consisted of mounting the Limitorque operator
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on a shock and vibration table to test it at 20 cycles per second. vibration at 1G load for a period o.. two minutes on -
one minute eff. This would constitute one cycle. The cycle was repeated five times in both the vertical and horizontal
, axis of the operator. The actual test report and photographs are included here.
The test was successful and there was no noticeable effect whatsoever en the Limitorque operator.
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.. . ,6. 150 LITE CYCLE TEST OF LIMITORQUE OPERATOR PRODUCING AJFROXIMATELY 16,500 POUNDS THRUST e Q'300'ra The Limitorque* operator van shipped to the Franklin ~~
Ir$stitute Research Laboratories, Philadelphia, Pennsylvania.
The operator was. counted on a stand inside thc test chamber and a 150. cycle lead test was made on the unit. This test
. consisted of stroking the 2 3/8" diamater valve stem a total of approximately 12 inchss in two minutes. The valve stem in the full closed position produced a thrust of 16,500 pounds on a rigid plate securely bolted to the test chamber. The thrust was measured by the same strain-gauge recording instru-
' ment used in the actual environmental test conducted by the Franklin Institute. The unit was wired up so that the closing direction and the open position geared limit switch stopped the unit in the full open position. The speed of travel was 6 inches per minute.
After the life cycle testing was completed, the unit was inspected and found to be in excellent condition. There was no not'iceable wear on any af the parts. The same electric l
I motor which had been heat age tested at Reliance Electric Co.
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l was used for this life Cycle test. .There was no noticeable l
adverse effect on the electric motor and it functioned properly.
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! 7. TEST OF LIMITORQUE VALVE OPERAU . UNDER SIMULATED REACTOR CONTAINMENT POST-ACCIDENT STEAM AND CHEMICAL ENVIROhMENT The attached report of the Franklin Institute Research Laboratories describes the actual testing under this environ- ,
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's.. . m ntal condition. !
O.')OT)33 i
, After the test was completed, the Limitorque operator .
l was, shipped back to Philadelphia Gear Csrporation, King of
, )
Prussia, Pennsylvania where it was disassenbled and all parts'
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, were inspected.+ Photographs are included showing the various I l
parts 'of the operator. All parts, including the electric I motor, slide were position transmitter, seals, bearings, gears, and shafts, were inspected and no noticeable wear was noted. However, the gear frame of the geared limit switch had corroded and caused a minor failure. .
The geared limit rwitch frame had been,. attacked by the beric acid in the stian atmosphere. This caused the gear frametocorrodeaddresultedinhindingupoftheshaftsof.
the geared limit switch.where they extend ,through the geared limit swie'h housing. This caused the malfunction of the switch as described in the Franklin Institute Research Labor-aterie s , Report . A material change has been instituted to correct this corrosive action of the material used in that
. particular switch, on all present orders being processed, and on all future units to be shipped to meet environmental cenditions such as this, the gear frame housing of the geared lirait switch will be a bronze material which is not subject i
to corrosion by boric acid solutions. *the motor insulation.
resistance after all testing was 1,000 megohms across all three me, tor terminals to ground at 500 volts.
7
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.J . q';.. .; -- -l Te n R epo rt. No.' 212 0-4594
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MEPORT OF"7EST
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,. SMBo-15 LIMITORQUE
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Report Writer: b' # "*
. If. F. Soltis -
Test Eng(neer: ## I '
- W. A. Black -
a LGOI.tMEED, ELECTRONICS COMPANY
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minny .v m us civisiou ....... u m ri d o, ,,e , n u e y J- -
m,,._ July 31,19qs .,
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. Approved by: M. .
J vNv N. Johrjs<en, Supervisor Environmental Laboratory -
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j PURPOSE OF TEST: .
To subject the test specimen to the '
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. . Vibration Test referenced in Philadelphir. l
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, "- .. f. . / s .? Gear Corporaticu Purchase Order No. 600198, l
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= 'M/JTUF.JcIURER : Philadelphia Gear Corporation .
.. j King of Prussia, ?a.
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' SPECIEENS' TESTED: . SMBO-15 :.imitorque-
, ii . (Reliance Motor S/N 435571-MS) . -
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J APPLICABLE DOCUMENTS : Philadelphia Gear Corporation '
Purchase Order'No. 600198
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(. CASE NUMEER: . * ',24-8041-0594 ' '
Q.UAFTITY OF .
l SPECIMENS TESTED: One (1)
SECURITY CLASSIFICATION " .
0F SPECIEDiS TESTED: Unclassified '
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7/30/68 g DATE TIST COMPLE'.'ED: .
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j TEST CONDU5TED 3Y: LOCKHEED ELECTRO $ICS COM7ANY
. DIVIRONMDITAL LABORATOP.Y p .
DISPOSITION OF - - '
SPECIMaiS TESTED: -
Heturndd to. Franklin . Institute, Applied ,
Mschanics Laboratory per the reo.uest of j Philadelphia Gear Corporation per Lockhsed u , '. Electro 11cs Company Packing Slip No. 41775 q '.
dated 7/31/68.
j TEST APPARATUS : '
Renetion-Type vibration Enchine,
. LAB Company Model RVH '[2-5000, S/N 51401 G , .'
{ Vibration Meter ME Company ,
Model M-6, 3/N 539 m ..
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. Vibration Pickups, MS Company Type 120, t.2 - -
'S/N 14187 (vertical) And S/N 11263 l
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l '. ' TEST PROCEDURE: The test specimen was .woured to the 7
vibration machine, as shown in Figures 1 and 2, and subjected to five (5) cycles of
. vibration in both the vertical axis and l -
the horizontal mzis with the mounting flangei '
.in the horizontal plane.
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TEST PROOZDURS: . . . .
Each cycle. . . .. consisted of two (2) minutes (Cont'd). -
~**'.of. vibration at a frequency of twenty (20) ..
ops. and a acceleration level of one ( .). .e.-
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c . ribration. .
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.e. Visual'inspedtions for evidence of any t
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.throughout ribration te, sting.
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TEST RESULTS : '
- The vibration Test was conpleted with no i -- -
visible evidence.cf'any external physical dacuse.
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- EECO!OIENDATIONS : None. Data merely submitted.
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. . . . - FINAL REPORT.
4 3
Report TEST OF A LIMITORQUE VALVE OPERATOR '
UNDER A SihdLATED REACTOR CONTAINMENT ,
N POST-ACCIDENT STEAM AND CHEMICAL. ENVIRONMENT .
by.
4 3 R. Clyde Herrick LeRoy E. Witcher ,
-Prepared for
.he PhiL1dstphia Gear Corporation Ring of Prussia, Penneyivania November, 1968 E FRANKLIN INSTITUTE RCSCAP.CH LABORATOMICE
' 9 E N J A u l P3 F R A M MLIM PA R N W AY
- PMlL A D E LPM 4 A, PENNA. 19103
i
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010031
- u.
- CONTENTS
~
LIST OF FIGURES 11 LIST OF TABLES iii StPNARY iy I. INTRODUCTION 1 II. EOUIPMENT TESTED 2
~
III. TEST DISCUSSION 4 A. Measurements -
7 B. Test Sequence and Observations 10 APPENDIX I 23
. Test Data Sheets . .
APPEht!X II -
29 Performance Test Data of Limitorque Valve Operator ADDENDUM I -
Original Recording of Limitorque Power Consummtion ADDENDUM II Oriainal continuous Recording of Test Chamber.
ADDENDUM III Original Recordino of Yalve Seatina Force ADDENDUM IV .
Original Recording of Test Chamber Pressure Reductions O
i hmt rnAnna msmmt ntsr>acs t.uexAtons:s a _ _ . . . _ _ _ - - - - "
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LIST OF FIGURES-Fiau s No., .
.1 Test Facility Before Test
, 5 Test. Facility After Test 2
6
-3 Schedule of Test Environments 1 11 4
'Recordino of Initial Pressure Rise to 90 osia . 12
-5 - Limitorque and Motor-Brake Before Test 6 Limitorque and Motor Braka After Test >
20 1 7
Limit Switch Comoartment Before Test 21 8 Limit Switch Compartment After Test '
22 .
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Table 1 Collected Data Appendix II Perfomance Test Data of page 30 Limitorque Valve Operator)' ,
/able 2 - Avernac and Peak Values Aooendix 11 -'
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0100'34 C
- i SLEPARY _
A Model SE-O Limitorque V4ve Operator manuf actur1d by The philedciphia Gear Corporation'vas tested by The Ft< 41$n Institute Research Laboratories for performance under steam and decontaminate environments axisting in water-moderated resctor centr.?.n=ents following some credibla accident. The Lhitorque operatar plus an additional motor brtka asseebly was tested in accordance with L.aval 4 of the Standard Draft, dated June 7,1968, prepared by Sub-Coms.ittes 2 (Iouipment Qualification Testing) of the IEEZ/NSG/Tcchnical Cwmittee for Scandards.
Actual tests were begun on October 31, 1968 and tortinued' for seven full' days. ,
Ths Limitorque Valve Operator continued to operate throughout
. and after che environmental test. It was necissary to sequence start tLe operator to unsaat it from the full closed position ;
after the 20 psi pressure level vaa reached. Ihe geared limit sv ueh byp' ass around the open torque switch was apparently set too close to the full closed position. This caused the torque switch to me=entarily open and stop the operator before it had unseated che valve stem. ,
It is our understanding that this could be corrected by setting the geared limit bypass wvitch to trip open after tha valve stem is unseated.
The environment did affect the geared limit switch as was evidenced at the end of the first 2/. hour period when the Limitorque operator vant to the full open positf.on and stopped by the open iv TMI T1ULNIl.W lNSTlTVTE RESEARCH LA3CM101CES i
j u
_ _ _ _ _ _ _ . _ _ _ . _ _ _ _ _ _ - - - - - - - - - - - - - -- -------- ---- --- ------ - - ~ ~
) .
. O'30035 .
limit torque switch rather thAn by the open position stai>ad limit switch. Both indicsting lights rammined on even tho.gh the valvo artee ',ad baan moved to the full open position.
At the end of the seven day environ: ental exposure, the Limitorque operator closed the valve stem normally, however due to the failure of the geared limit switch, a ju:npcr wire had to be used to bypass the switch to allow the limitorque operator to open the valve s tem fully.
The motor brake assembly operited satisfacrorily throughout the tes t.
, e e
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e' V TXE TRANC.:N DfSiriJTE RISEARCH LA80RATOR:ES j
_ _ _ _ _ - . - - - - - - - - - - - - ~ - - - - ' - ' ' ^ ' ' ~ ~ ~
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- 010036 .
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- 1. JuTB,000CTION !
Followinr., discussions between 'ar,aff members of Th'e' Philadelphia Gear Corporation and The Tranklin Fnstitute Research Laboratories (PIRL), an agreement was signed under which FIRI would test a Limitorque valve operator and a separate motor-brake assembly under sinulated reactor post-accident environments. Th!.s is the final report of that test progma. -
The conditiens simulated for the test were the pressure-tenperature-humidity (saturathd steam) environments and the chemical environ =ents that eculd be expected to exist in the containment vessels of watermoderated power rnactors folleving some credible accident such as the rupture of a major reactor piping assembly. The particul'ar conditions simulated are those set forth, in the IIiE
~
Standard Draft, dated June 7,1968, of the IIII/N5C/ Technical Com-aittee for Standards, Subcoccittee 2 (Equipment Qualification Test-ing) as transnitted by . Philadelphia Gear letter, Lawson to Witcher (FIEL), on July 16, 1968.
The cast was made in accordance with the applicable portion of this standard with one exceptions the pressure specified to be 3 psi between 24 and 168 hours0.00194 days <br />0.0467 hours <br />2.777778e-4 weeks <br />6.3924e-5 months <br /> af ter test initiaticn I as shown in Figure 3, page 9 of the IIII standard was changed to be 15 psi.
- This change was requested by Philadelphia Gear in the letter of July 16, 1968 previously~ cited.
It must be emphasized that this test program was for the emergency steam an'd chemical envivornental conditions only. Pre-conditioning tests including radiation aging, heat aging, and s. sock ,
tests were not included in the program at FIRL. Neither were post-test inspections or other acceptance criteria.
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C'30037 .
II. EQUIPMENTTESTEL Tne equipas.st acted was (a) a Limitcrque velva operator and (b) a motor-brake sue.bly as identified and described below.
(a) Name Plate Information of Valve Operator (Tes_t Unit 1_1 -
NAME:
sMB-0 Limitorque vetva operator Order- No. 600198 -
MANUFACTURER: Philadelphia Gear Corporation MOTOR: Reliance Buile Torque Motor Identification No. 435571-JTR
, START: 15 ft.-lb.
. RUN: 3 ft.-lb.
. TYPE: P FRAME: M56 PHASE: 3 RPM: 1700 CYCLES: 60 VOLTS: 230/460 CODE: -
AMPS: 5.6/2.8 4
Temp. Rise at Run Torque of 15 Minutes: 75*c Tyce H Insulation Gear Unit e
e 2
TIbne rRANEM WSTmr/E RESEARCH LABORATORIES
_ _ , _ _ _ _ _ _ _ . _ _ . _ . - - - - - - - - - - ' - ' - - - ^ - - - - - -
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.010038 .
t' (b) J yue Motor with Brake (Test' Unit 2)
-MOTOR-
~'-MANUFACTURER:. n11ance nactric company' >
3300'10th 5treet
~
Columbus. Indiana-
. IDENTIFICATION H 442010-Jn
- i 4
y . START: 15 ft.-lb. FRAME: -
RUN: - 3 f t . -lb . koM:
1700 '
TYPE . -
VCtTS: 230/460 PHASE: 3 AMPS: . 5. 6 /2.'S -
J, . CYCLE 60
' CODE: -
' Rise at RJN Torque: '75'c 115 minutes)
DINGS MAGNETIC DISC BRAKE MODEL: w41009-50 . VOLTS: 230
. ,m
' SERIAL N0-:-'157010
. Continuous Duty TORQU'E: - 3 It.-lb..
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[ , O'10039 Ill. TEST DISCUSSION The tests were conducted in an environmental test facility installed at FIRL. Figures 1 and 2 r,how the central part of the 8--'ity including the test chsmher with the Limitorque ant' motor-
- lsambly counted (Figure 1). Both figures show the chamber a1 are recorder mounted on the upper right wall, the dual channel
~'
recorder mounced directly below and the Limitorque and asembly temperature recorder mounted under the right hand table.
s 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 junction box mounted above the vessel.
From the junction box. Teflon insulated #12 vire was brought through the vessel vall in Conar feed-through fittings and theace to the Limitorque and the motor-brake.
. The Sanborn recorder shown in Figure 1 vaa used to measure the valve sosting force as measured by strain gages on the valve stem guide protiuding to the lef t from the tank.
The facility was pressurized,by a two inch steam line from the FIPJ, building steam mains. The fast pressure rise was achieved by quick-opening valves in the steem line. Subs,equent regulatica was perfor=ed by a Spence regulating valve. In order to achieve the f astest possible rise in steam presmre 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 virh the Limitorqun was somewhat greater as described in the actual test procedure.
4 THE rPAb]te'UNsimnt RESEARCH LOORATORIES --
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- A. MEASUREMENTS (1) Temperature inside unit and limit-svitch ecmpartment '
- . Limitorque operatort Temperature was iicasured by means of s- .
, ..four thermocouples installed in the Limitorque Operator.
,...-.~ ,
The valve operator was received by TIRL with three thermocouples already installed in the motor vindings.
One additional thermocouple was installed by TIRL in the limit-switch compartment.
Motor-Brake Assembivt Temperatures in the brake assembly were also monitored by three thermocouples installed prior to delivery to FIRL. Twe were in the motor windings and one was in the brake asse=bly.
, All' ta=peratures in the Limitorque and' ,the motor-brake
, assembly were recorded by a separate mu'Iti-poin't te=perature recorder. -
(2) Motor Voltage, Amps, and Watts A polyphase recording watt matar 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.
e No measurements or recordings were made for the motor-brake asse=bly.
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010013 l
, (3) Temperature and Pressure Inside Envirormental Chamber The environment and test chamber temperatures were recorded throughout the seven day test with thermocouples at
. strategic locations. De temperatures recorded were the '
chamber steam temperature (1), temperature in the valve - -
operator switching - compartment (2), the tank wall tempera- -
ture (3),- and the inlet steam (4).
Pressure was monitored visually by means of a precision sechantcal sage and by a pressure transducer fer the analog recording 'of pressure by a two-pan potent'iometer recorder. -
-The.other pen of the pressure recorder was used in conjunction with another transducer to measure and record pressure in th.e .
limit-switch compartment of the Limitorque valve operator.
, (4) Boric Acid Concentra' tion and pH of Condensate l:
In'11eu of measuring the concentration.and pH of the con-l ,. ,
densate, a . solution of' 1.3% (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.
p The' condensate was -not recirculated, but was _ drained _ from the tank overflow as the fresh solueida was injected. The L -..- boric acid used ' to simulate the: post-accident spray was prepared; by dissolving seven pounds of technical grade boric _ acid (B3 303.) in 55 gallons - (460 pounds) of dominerali-sed water. The solution was prepared at- 80*F to facilitate the solution of the boric acid crystale. - A 50% solution of- .
'Y
. reagent grade sodium hydroxide (NaOH) was used to titrate y
a the horic acid solution to obtain a stable pH of 7.67 as e
measured with a Beckman-pH meter.
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0100g v Preparation of the solution was made in a stainless steel chiller tank, equipped with 4 stirrer ani cooling controls.
The solution was ecoled to 21.5'c (70.7'F) for the test.
Eight gallons of solution was esed to fill the test chamber auxilliary heaters.for.the pre-heat cycle and to provide a boric acid source for.the, initial test.
Boric a'cid flow rate vaa measured with a Brooks Flow Meter.
The solution was then pumped into the spray nanif old in -
the test cha=ber by a high head centrifugal pump.
(5) valve Oeerster Seating Forea in valve closed Positien The valve operator seating force was measured by a full strain gage bridge on the valve operator 2xternal stem drive, which was calibrated by a pre-calibrated load cell. During
, th e t es t , this force was recorded on one channel of a two-channel Sanborn recorder. ,
(6) Motor Insulation 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 megeh=eter.
(7) The Li=itorque unit was tasted with the limit-switch com-partment as an integral unit. A transmitting potentio-meter indicating the valve sta= 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 on the gear housing, with the free flow into the test chanber.
l 9 1
THE TRANKilN IN3TmTTE RESEAR3 LA3CRATOR2s
[* .s '.'
030015 . ..
B. TEST SEQUENCE AND OBSERVATIONS 4
a (1) simulation of Long 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 ter= .
ambient prior to an accident. This, in our test chamber, was accomplished by periodically 16troducing a small amount of steam from the mains in additic,A to heating the condensate in the bottom of the test chamber with the electric heaters.
(2) Start of Test
- Upon reaching the 140'T ambient level, the actual test was begun at 3:15 p.m. on October.31, 1968 by suddenly admitting steam to the tes t chamber. The pressure was brought up to and held,at 90.psig, in accordance with Figure 3. The rise time was 1!. seconds as recorded by two observers using stop
, watches and precision gages as reference. A precision mechanical. 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 Limitorqua. The recorded pressure variation in chamber pressure upon reaching the 90 psi le rel was caused by a leak in the pressure transducer at that time.
/
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FIGURE 3 o, .
80 ' , SCIIEDULE OF TEST ENVIROMiENTS 70 Saturated Steam Pressure Cycle ,
A ,
A and ,
60 I- Limitorque Operation Cycle 3 ' '
50 .-
a e ' 1
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= Oit WE OPEMTOR CYCLE
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(3) _Limitorque_ operation 4
.4
- .-Six minutes af ter the begistiing ,of _ the test the Limitorque
, i .
andi motor-braka iL:
assembly were each operated through ona* 1 C. .1 , - . .
~ 7,J. ,e;enpleteicycle. 04peration,was : ,,rm.
.l, -
n : .. 1._,
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- ~ ;(4)- - Starr Boric 'Aci'd 3 pray
) ~
Forty minutes af ter the start of the test the boric acid spray was s tarted.
. 1.5% boric acid, buf fered with sodium hydroxide to a pH of 7.67, was supplied at 10 gal, per hour in a dovoward spray pattern over the Limitorque casing and centrol compartment for the next four hours ,without -
interruption.
(5) Limitorque operation Fif ty-five minutes af ter the start of the test the Limitorque and the motor-brake were each operated through one complete cycle. Operation was normal.
, (6) Pressure hduced to 70 pg One hour af ter the start of the ta'st the pressure was ree.uced to 70 psig in the test chamber within a period of three minutes.
(7) Limftorque Operation .
Seven mi.utes after reaching the 70 peig saturated steam conditions in the test chamber the Limitorque and motor-brake weta again, operated through ena complete cycle. Operation was norraal.
(8) Limitorque Operation .
Five minutes before going to the 40 pai level the Limitorque and motor-brake ware agcin operated. Operation was normal.
e 13 Tur rRANum INSTmTTE RESEARCH LABORATORIES f
.-.a.
-. . . - - - . = - - . - - . _ - .
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- 010019 (9) Pressure Reduced te, 401 psia .
Three hours af ter the start of the test the pressurk in the ,
-test chamber was redmed to 40 psig, by adjustics 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 peig was accomplished .
in five minutes.
(10) i.imitorque Operation .
Five minutes af ter 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.
, _( 11) Borie Acid Sprav Stocced.
' The boric acid spra'y which" had been supplied continuously
', f . . .
for four' hours in a spray pat' tern over the. Limitorque was
-stopped.
No further chemical environment was simuhted. .-
( 12) 11mitorcue Operation Five minutes before the end of the two hour 40 psig eaturated steam condition the Limitorque and motor-brake were again operated. Operation was normal.
, (13). Pressure 1teduced to 20 nota .
l Tive hours af ter the start of the test "the p. seura regulator was adjustad from the 40 psig setting to the i psig , setting.
-Cooling water was also supplied to the cooling coil in the L
chamber head. This accompl1=hed the transition-from 40 peig -
to 20 psig.in four minutes.
f 14 hrut nuuns msmWI RESTMCH MBQRATOK!ES r .I h..', .
,- - - - - - - - + - . . . . - - - - - - . - --,n , ,nn - , ,, ---,,+, e , ,-
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(14) Limitorque Operation
. v~ . ...
Tide s. . i lnutes af ter reaching tae -20 psig level, the Limitorque and the motor-brake assembly were operated throuch one r - cycle. - n .t,..e ;.. i.4 - m. . x n - . . .. - .
,r ,. lneta comp -.
4
. The. attor-brake assembly operated normally.
t
.. . ... a c. n. . ~
s- .
The Limitorque operated, but its operating characteristica-had changed.
It closed ac,rmally, but to open' the unit it was found 'to be necessary to joggle the open and close buttons
'in_ sequence to start up the uni't. Once started,-it operated satisf actorily, but. the opening time was 112 seconds .inscead of the normal time of 110 seconds. The absence of a peak in ,
motor torque at the end of the opening stroke signified that the opening stroke was stopped as usual by the limit switch.
(15) L_tmiterque operation
]
Nineteen hours- af ter the previous Limitorque operation and five minutes before the end of the 20 psig indition, the
- units were operated once more. The motor-brake operated 1 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 strok'e
- signified that the' full open limit stop was reached, thus indicating that the preset limit switch failed to stop the
. cpening stroke.
(16) Presrure Reduction to 15 pair '
Twenty-four hours af ter the start of the test the pressure ~
- waa' reduced:from.20.to 15 peig. This was-accomplished as L before by adjusting the regulating valve and running cold !
. vater ' through the cooling coil. Pressure reduction time was i
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" 15 m
be mun.m msimnt utstAnc:n traonAten:ss ,
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i .
seven minutes. No further change in pressure was made beforez the and of the test. <
(17) Limitorcue coeration The test units were operatad five' minutes af ter reaching the 15 pois condition. The motor-brake operated' '
satisfactorily although-it appe..u to be noisy ti.. a short - '
_ period of time with the brake released. . The Limitorque operated as in the immediately proceeding operation-(Sequence
- 15) except that' the position limit switches-wre not operating.
The Limitorque operated satisfactorily but 1.t had to be sequenced rapidly between "op*W'_ and "close" to unseat the
-stem when in the closed position.
... (18) Limitorque Operation
-~Six full days _{144 hours) passed while the units remained Lin the 15 psig saturated steam enviroissent before the units were operated once more. The motor-brake operated satisfactor-ily.
,.- The Limitorque closed satisfinctorily but this time the unit would not- reverse to un-saat the valve s~ tem on the open-ing cycle. : Rapid sequencing o'f the "open" and '_'close"'
buttons as done previously was to no avail and so a jumper
. was added to the controis on the panel board to reverse the Limitorque. W is'.was-successful and-the Limitorque I*
opened satisfactorily. . .
x
-(19). Pressure-Reduction-to Atmosphere Fol1owing the'Limitorque operation cf sqquence 18 the Pressure was reduced to 'the atmospheric pressure of the lab.
. This- was ,done by circulating water -through- the cooling coil in the chamber head and later by slowly pumping cold water into the condensate well of the chamber.
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- m. . x 3 -
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' The cooling operation before venting required _approximately thirty minutes. .
s (20) Condensate Sampline Before pumping water into the condensate well to cool the test chamb9r a sampla of condensate van drawn and testert for acidity. - The conder. sata 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 ecid sh'ould have been diluted and carried away by the steam condensate.. -
(21) Opening of Test Chamber Approximately one hour af ter'the and .of+ the smran day test
- ,(168 hour0.00194 days <br />0.0467 hours <br />2.777778e-4 weeks <br />6.3924e-5 months <br />) cycle the tank was opened to . inspect the units '
(- under test. - -
(22) , Visual Inspection of Test Units Figures 3 and 6 show, respectively, the test units immediately before and af ter the- test.
It ta obvious that the steam and
- o ; chemical environments had a very corrosive effect .upon the .
units, especially upot. the point. However, as described in this test sequence, the units operated, even to the hand-wheel which was testad and found to be satisfactory.
Fig.re 6 shows a certain amount of crud in the bottom of the-tank.
This was found to be'_(a): gresse that had come out of the checkvalve, and (b) the remains of the visual position indi-cator which had been severly attacked by the envirotunant.
The plastic had melted and had apparently foamed.
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Figures 7 and 8 show the effect of the enviroprent upon the -
limit evitch compartment, h envirotsment 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) Limitorque Operation '
The Limitorque was operated once more before it was removed from the test chamber for return to the Philadelphia Cear
~
c,orporation. The operation was as described in sequence The jumper on the control panel was necessary for reversing the motor from "close" to "open".
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APPENDIX I
_ TESTDATkSHEETS _.
4 8
9 9
4
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e O
9 l 23 ha rumtun LinTmrt arstucH Lucaxtentes
3$!IC2232 -.
s Date k , 3 j/, /f/f ENVIR0hMENT TEST't.;YCLE
, TEST LEVIL I Time at Start of Test bf11N/IEcur li/5 030059
~
Inf.tial Pressure / $~ Paig Temp. /Y2 'r Pressure Rise Time: /#/' Seconds Chamb.tre Press. 3f PSI 6 Temp. 329 'T Test Unit: Press. 9(* Psig Te=p. _3 2.F 'y
~
First Test Cycle of Motor /S 1 I Hours '
at this Level .
Start of'3cric Acid Spra'v. (40 minutes ' ?;er Level I) '
Time: _/ 9 3Y Ecur Minutes Boric Acid F.'.ou Rate: J7f f pph Te=v. 7 0.7 .r va , A;L.,L.
Secor.d Test Cycle of Motor
.at this Level: The: [d [O Uon.
End of Lavel I:
Tue: /d/5- nours Cha=ber Press. 7/ psig Te=p. J 2. */ "F Unit Press. / psig Te=p. M7 ,_'T l
24 l
J
- , .
- s.: .
4 311-C2232-01 ..-.
- ~-
-;, Da:e _ Od ^3
~ ~:
010090g,zw % p'-
a
_ ENVIRONMDfr TEST CYCLE '~
- - DESIGNATED '
TESTLEVELNO.__A 1ATURATiON STEAM PRES.S. 70 PsIG TIhP. '3/ .--,
.. 3
~'^ .
I7
- Time Level Rea'cheds"'' I "-Rourr-M
p ,, j, T "I 7, Time fro..m Previous .Levail:
. 3 .$ -Minutes
'/ - ' '
Chamher Press: 70 psig Temp.: 3 l 1 ' ~ ~* F
... , s
./.0 Test Unit: Temp. '3 /.2 *F Press. 70 Psig Firs e Test Cycle of Hotor -
at this level:.
Time: l. b 2-
- Hours Borie Acid Sprav ,
- Flow Rate _ '10 9 g[4 Timp. *20.7
'. Vl
- T 'PH ~7 ((
Second Test
Cycle of Motor at this Level: . Time: /T /0 _-Hours End of Level No._ *
- Time: _ _(T ([ Hour' '
Chamber Temp. D *F Press. ~7b Psig.
' Unit Temp. II
- F Pr ess. 7O Psig 25
- . -p
.L 31I-C2232-01 Da e3 _de [ s 1 i &(,
0'10091 y g ,. g ; 4 -
ENVIRONMENT TEST , CYCLE _.
~~
C DESIGNATED EST N Ho. M *2O
- SATUPATION L .
STIAM PRES'.S. PSIG TEMP. _2 I 7' ':
Time Level Reached: 2.O 2. ~4- Hours '
Time from Previous Levait M Minutes
. amber Press: 20 psig Temp.: 1 7.f
-0:.s *
- F__~'_ -
_~-
Test Unit: Temp. .M 7 I _
- F Press. RC Psig First Test _
Cycle of Motor *
- ~
at this Level: Time: 7 c 3T nour. -
M Boric Acid Serav
- Flev Rate oo k c Te p. *7 PH
~
~
u Ygf. ly (TS T
~ _
Second Test - -
Cycle of Motor '
at this Level: Time: '
/D O uour -
~
Er.d of Level No. '
Time: /f/7 Hour
- Chamber Tamp. 1Tb *F Press. Paig.
- Ur.it Temp.
'2. *F Pr ess . 2. O Psig
- f '
25 .
r-9
] _ _ _ - _ _ _ _ - - - - - - - - - - - - - - - - - - - - - - ' - ~ - - - - - - ~ ' -- -- ' _ _ _ _ _ , _ _ _ _ _ _ _ _ _ - - - - - - - - - - - - - - - - - - " - ~ - - " -
,m 03009g i -
311-C2232-01
'....: i.,
'd-Date OCk3/s/f4 *
' J y, 4 k
. ENVIRONMENT T,E,S,T CYCLE ,..
DESIGNATED SATURATION TEST LEVIL NO.
33.M PRES S.
YO PSIG . J I'7 ' 'I
} -
Time Level Resched: - 'l% 2 9 'T Rours' '
I.
Time frou Previous Level: fO Minutes -
f Chamber Press: psig Te=p.: 900 *F -
Test Unit: Temp. __2 3 7 *F Press. 9O Psig First Test '
O Cycle of Motor at this Level: Time: IT2 T Hours Borie Acid Sprav i Flov Rate /0 edk Temp. "/O, '7 *F PH 1 WI MEd.6QY'8] .Shopi A.h j75'S' ko&.5 Second Test a
Cycle of Motor at this Level: Time: .7. 0 / O Hours
~
End of Level No. -
Time: 2.0 ! Hour Chamber Temp. E,9 *F Press. N iO Psig.
" Unit Temp.. 1 *F Pr es s . /lb. E" ,Psig "
27
4 -' '
7 TABLE 1.
f31=C2232-01
@10093 1
PERFORMANCE TEST DATA 0F LIMITOROUE VALVE OPERA t -. COLLECTED DATA Test Pres. -
Line Volt. A-C Stam Travel Psig Time 1-2 Current Pwr. Stg. Close Open 3-1 3-2 1 -3 W For-lbs. Seconds 10/31 .
0 1502- 500 512 498 2.86 3.05
.50 16,500 110 1506 504 514 498- 2.75 2.95 .51 90 110 -
1521 504 516 500_ 2.85 3.00
- .53 16, BOO 110 1524 504' 516 500 2.65 2.60 .60 1610 110 500 512 500 2.80 2.97 .51 16,500 .110 1613 500 514 500 2.68 2.83 .55 1 110 70 1625 500 514 496 2.68 2.97 .50'16,100 ~ 110 1628 504 516 500 3.05 2.89 .52 1810 110
' 506 518 504 2.73 3.07 1813
.50 16.500 110 508 518 504 2.92 2.98
, .55 16,500 110
-40 1828 508 520 ,.504 2.95- 3.10 .50 16.505 110
, 1831 508 520 504 2.84 3.00
' .52 108 2010 508 520 504
- 2.98 3.10 .50 16,000 '110 2014 508 518 504 2.83- 3,02 .51 1 107 20 '2031 508 520 504 2.96 3.10 .50 17,000 110 2039 508 520 504 2.84 3.02 .51 11/1 112 1510 500 514 496
- 2.85 3.00 .46 17,fC0 110 1513 500 514 496 2.70 287 .47 112 15 1528 500 514 496 2.84 2.98 .46 17,800 115 1532 500 514 496 2.70 2.90 .50 11/7 118 1528 498 514 496 2.98 2.82 .43 17;200 111 r ordegDO 514 496 2.72 2.89 .50 111 Final 500 514 496
.46 17,000 Final 500 514 496
.50 e 30 Tu rRAMCUN WsmVE RI3rUCH LOCRAMR:Is
- 0. -
M OO94 31T-C2232-01
~ M8LE 2. _
- Average and Peak Values PERFORMNCE TEST OF LIMITOROUE VALVE OPERATOR ,
Oct. 31 ressure Ave. Volt- Ave. Peak Power Peak
, p,4, age -3 + Current current KW ,
4
,, 503.3 2.97 3.40 - h 30 - - - --
n . 509.3 ,, 2.85
,30 90 506.7 -
2 2.92 3.45 '.57 505.7 2.62 1.15 504 2.88 Missed 1.54 504.7 2.76 2.00 1 70 503.3 3.01 3.30 1.50 I
. 505.7 2.80 '
1.40 509.3 3.00 3.40 1.45 510 2.89 .85 40 .510.7 3.02 3.30 1,44
~
~
51 0.7 .
2.92 .7B .
510.7 3.'04 3.30 1.39
~
510 2.92 1.21 l e 20 510.7 3.03 3.40 1.45 ,
510.7 2.93 .75
- 503.3 2.92 3.40 1.35 503.3 2.78 1.09
[ , 15 503.3 9.91 1.42 L 503.3 2.80 1,48 L .
503.3 2.90 1.52 lf 503.7 2.80 .88 Final 503.7 1.52 Final 507.7 .95 L
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LIMITORQUE OPERATOR-PARTS
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DIsAssEMsLED AFTER EN7IRONMENTAL TE.ST
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090070
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PHIIADELPHIA GEAR CORPORATION '
XING OF PRUSSIA, PElmA.,19406 i
LIMITORQUE VALVE ColtrROL e
ADDENDUM NUMBER $r.1 TEST OF LIMITORQUP, VALVE CPERATOR To MEET GENERAL RFQUIREMEttf3 0F AN ELECTRIC VALVE ACTUATOR ,
, IN ,
NUCLEAR RMCTOR CONTAINMEITT EFVIRCN!!IIG' -
REPORT OF JA! NARY 2, 1969 A. SHOCK & VI3 RATION TEST B.
TEST OF LIMIT 3 WITCH WITH MATERIAL CHANCE 4
A h
APRIL 29, 1969 .
1
~
- - ' TEST REPORT - APRIL 39, 1969 070071 A.
SHOCK AND VIBR_AT1)M_.TESit The L'imitorque Operator size SMB-0 with a 15 foot pound, 3 phase, 60 cycle, 440 volt motor, nameplate order #338164 was shipped to Lockheed Electronics Company environmental labratory and tested on March 10, 1969.
Ten,t_Procedute The test specimen was secured to a vibration machine and subjected to five cycles of vibration in both the vertical axis and the horizontal axis. Each eyele consisted of two. minutes of vibration at a frequency of thirty-five (35) cps and an acceleration level of thret (3) "G's", followed by one minute.o! no vi,bration.
?
Vibration scens were also conducted in both axin of
- vibration betweer. five to thirty-five cps to determine the presence of any resonances.
Visual inspections for evidence of any external physical damage
, were conducted throughout the vibration testing. The vibration test was completed with no visual evidence of any external physi-
. cal damage. No resonances were detected during the vibration scans.
The above is included in Lockheed Electronics company Test Report
- 2268-4618 1
'P59 ] 2 April 29, 1969
~ 070072
[ The previous she'c k and vibration test of a Limitorque operator .
was extended to 1 G and 25 eps. The above test extended the level to 3 o's at 35 eps.
'...e#t B. 7EST OF GEARED LIMIT SWITCH WITH }4ATERIAL CHANGE: -
on the previous test of a Limitorque operator as submitted January 2, 1969, a failure occurred due to the action.of the chemical upray on the material of the gear fra,me of the geared limit switch. This caused the premature failure cf the geared limit switch. The gear frame material has been changed as prev-iougly recommended and an additional test of*this revised geared limit switch has been conducted at The Franklin Institute Research Labratories in Philadelphia, Pennsylvania on 1.pril 9 through April 16, 1969. The geared limit switch was placed in the same environmental chamber as the previous test and was used in
. conjunction with starting 'nd stopping an electric motor also in the test chamber. The environment consisted of a seven day test wherein the geared limit rwitch was exposed to high steam pressure, temperature and chemichl environment similar to the previous test.
The new geared limit switch successfully completed the test with nu sign of' wear or deterioration due to the steam pressure, 1
l l
i.
April 29,1969
'fi? ] 3 .
. i temperature or chemical environment.
0900y3 The test was completely satisfactory in every respect.
CONCLUSION: '
The material change of the geared limit switch has been noted and will be included on all Limitorque operators subjected to this environmental condition when specified.
This information is submitted as an addendum +o our Test Report
. dated January 2, 1969.
Very trul yo "n, C
Edward F. Lawson sales Manager Limitorque Division EFL/ sis 4
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' PHILADELPI?IA GEAR COR PORATION o industrial gears
- speed reducers
- fuld mizers
- limitorque valve controls
- precision ground gearing m ia o san:
ScherthfD Ennesmer, sabarban Phna.
KIh3 or PRt:Es1A. PA.1 Hot **
TELEPHONL m D00pg -
==
s SUBJECT :
REPORT OF TEST ON LIMITORQUE VALVE CONTROL S HOCK & VIBRATION UP TO' 5. 3 G : s, 35 Hz Gentlemen:
On A ugu.s t 2 0, on a Limitorque 1970 a seismic operator size shoch and SMB-0-25 vibration suitable for test was nuclear con- conducted tainment vessel service at Plairifield. Sew Jersey. the Lockheed Electronics company in The Limitorque operator was mounted on a test stand and having ~
a threaded valve s tem being dri.ven by the Limitorque opera tor simulating opening and closing a valve.
The Limitorque operator was electrically connected so as to stop at the full close position by means cf our torque switch end stop at the full open position
- by means of our geared , limit switch.
I The Limitorque operator.had used at a remoteforpanel. motor control were wired to electric indicating The enclosed completed a 5.3 Lockheed G shock level Test at Report ; hows that thia unit successfully An exploratory scan of 5 Hz to 35 Hz was made and no critical 35 Hz resonant frequeneles were noted on the Limitorque operator. The urat 4
was shocked and vibrated in esch of three different axes total of 2 minutes on, 1 minute off., three times per axic .
unit Wd5 The cperated eleetriCa1ly to both the full open and full close W
sales and engineering ofices in all maior cities t
I
. : 7. . .
0900?(;
position and all torque switches and . limit switches functioned properly.
None of the auxiliary limit switches wired to indicating lights ever flickered or indicated they were opening or flickering.
All electrical and mechanical devices on the operator worked success-fully.
An additional ducted as notedtestinlovel of 10 G's at a maximum of 49 Hz was con-the test. The Limitorqus operator had no defects during the first two minentes cf operation at the 10 G 1evel: however, upo. starting the second run, the hardware. holding the geared limit switch time loosened and we decided to discontinue the tes t. At that vibrationthe at unit10 had G'sbecn sub]ected and 49 Hz. to a total of 9 minutes of shock an-The enclosed Test Report #2539A-4723 of Iockheed Test Lab, is sub-mitted for your information.
Very truly yours, '
. PHILADELPHIA GEAR CORPORATION
-p.*)---
Edward F. Lawson, Sales Manager Linitorque Divinit:1 ak enc.
S e
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.s 0'100??
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. [; Test Report No. 2539^-"23
. Issue 2 REPORT OF 7957
.on -
LIMITOROUE CORPORATION GMB-0-25 VALVE OPERATOR
. Rep' ort Wr{ter:
R( F. Soltis Test Engineer: ddd tid GS W. A. Black #
LOCKHEED ELECTRONICS COMPANY PLAINFIELD, NEW JERFEY Date: Se ct embe r- 23. 1970 Approved by: _N.Johnsonj) Supervisor 'bw Environmental Laboratory inwCh LEC 197P.1 i
__ _____ - -- - - - - - ~ ~ ~ ~ ~
~
u .,7.- c r v s e tnsu
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Tost Ropart No._2s3sA-4723
~~ '
Issue a
' PURPOSE OF TEST: ?
To sub' Ject the test specimen'to.the
! Seismic Test esferenced in Limitorque Corporation Purchase Order Number 348572, dated B/G/70.
i MANUFACTUR~R Limitorque Porporation .
- E114 Woodall Road ' ~ '
g . ,
Lynchburg, Virginia 24502 .
SPECIMENS TESTEO:
- SMS-O-25. Valve Operator APPLICASLE DOCUMENTS:
'Limitorque Corporation Purchaoe Order.
Number 340572, datad 8/6/70.
CASE NUMSER:
34-8041-0723 CUANTITY OF SPECIMENS TESTEO One (1)
SECURITY CLASSIFICATION '
CF SPECIMENS TESTED: UnclassiFiod DATE TEST COMPLETED: ,8/kO/70 ,
TEST CONOUCTED CY:
, ',- LOCKHEED ELECTR'ONICS ' COMPANY
, ENVIRONMENTAL LABORATORY '
OISPOSITION OF SPECIMENS. TESTED:
Returned to Limitgrque Corporation per
- LEC Packing Slip Number 66227, dated O/24/70 ASSTRAC1:
The test specimen was subjected to the Seismic Test referenced in Limitorque
- Corporatien Purchase Order Number 348572, dated 8/6/70.
The S.3G portion of testing was complet with no discrepancies noted.
,. The 10 G portion of testing was termi-l nated during the second cycle due to noted fatiguing of the gear limit owitch mounting hardware.
TEST APPARATUS:
Reaction Type Vibration Machine, LAB Company Model RVH-72-SOOD, S/N S1401 ,
Vibration Meter, MB Company Model M-6, S/N 423.
~
. Vibration Pickups, MB Company T pe 120, S/N 11263 and Type 124, S/N 14074 Form LEC 197F Page 1 of e e
. y ., m l
-($($[3 Tost Rop 3rt NOe_2539A 4723 Issus E TEST PROCEOUREt The test specimen was secured to the vibration machine, as 'shown in Figure 1, and subjected to an exploratory scan over the frequoney range of 5 to 3' Hz in two (2) exes. The exploratory *_ cans)l were followed by three (3) cycles of vibration in each exis. Each cycle consisted of two (2) minutes of vibra- '
tion at a frequency of 35 Hz and an acceleration level of 5.3G's followed bi one (1) minute of no vibration. !
The test specimen was then set up as shown in Figure 2 and subjaated to the above mentioned test in the third exis.
i At completion of this test, an additiona exploratory scan was performed over.the-Frequency range of 5 to 49 Hz and two (2) cycles were perf ormeo at a Fre-quency.cf 48 Hz and an acceleration level of 10 G's.
The teet specimen was energized during testing snd all niectrical monitoring won perfo'rmed by Limftorque Corporation,
. personnel, i TEST RESU'LTS: . The 5.3 G portion of testing was com-
, , plated with no evidence of any dis-crepancies test.
noted during either exim of }
During the exploratory scan of the 10 G portion of testing, the gear limit
. ,mwitch mounting hardware loosened.-
These screws were tightened prior to the start of the first cycle.
The first cycle at 10 G's was then ecm-L* pisted with no discrepancies noted.
After approximately one (1) minute of the secord cycle, the test was termi-noted due to Fatiguing of the gear limir switch mounting hardware.
For additional information, refer to the five (5) attached data sheets.
l RECOMMENCATIONS: None. Data merely submitted.
l l
Test Engineer dde d. .
W. A. Black V M
Form LEC 197F
- Page 2 of 2_
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Issue 2 -
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