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PC iv- R 6-051

SANTA FE SPRINGS. CA. 90670

PYRONETICS

A CORDON INTERNATIONALCOMPANY

-REPORT NO. QC & R 6-051

EVALUATION TEST PROGRAM

FINAL REPORT

VALVE, NORMALLY CLOSED, TITANIUM

PYRONETICS MODEL 1426

JET PROPULSION LABORATORY

PURCHASE ORDER NO. ES-565923

PREPARED BY

j*~*

EDWARD AVALOS.RELIABILITY ENGINEER

APPROVED BY

L,

CROSB? NAGENGASTSENIOR :PROJEC ENGINEER

BRIAN H. LUNDQUIS TRELIABILITY MANAGER

F

No. of Pages 44 Date: 2 March 1972

https://ntrs.nasa.gov/search.jsp?R=19720018750 2020-03-28T19:06:21+00:00Z

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CONTENTS

INTRODUCTION AND SUMMARY

DESCRIPTION OF EXPLOSIVE ACTUATED,NORMALLY CLOSED, VALVE

1.0 TEST PROGRAM

2.0 REFERENCE DOCUMENTS

3. 0 TEST DESCRIPTION AND RESULTS

3. 1 Proof Pressure and Internal Leakage Test(Body Subassembly)

3.2 Proof Pressure and External Leakage Test(Body Subassembly)

3.3 Proof Pressure and Leakage Test(Actuator Assembly)

3.4 Gross Leak Test (Actuator Assembly)3. 5 Examination of Product3., 6 Actuation Test3.7 Post Actuation Proof Pressure3.8 Flow vs Pressure Drop Test3.9 Disassembly Inspection3.10 Pcxst^Aetuati'ornLeaka.ge (Actuator Assembly)3.11 Post Actuation Leakage Gross

(Actuator Assembly)3. 12 External Leakage After Actuation (Valve

Assembly Less Actuator Assembly)3.13 Burst Pressure Test

4.0 TEST PROGRAM CONCLUSION

5.0 TEST EQUIPMENT AND SETUPS

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4

5

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QC fc R 6-051

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CONTENTS (Continued)

Appendix 1

Appendix 2

Appendix 3Appendix 4Appendix 5

Appendix 6

Appendix 7

Proof Pressure, Internal & ExternalTest Data SheetProof Pressure and Leakage (Act. Assy)Test Data SheetExamination of Product Test Data SheetActuation Test Data SheetPost Actuation Proof Pressure, Flow vsPressure Drop and Disassembly InspectionTest Data SheetPost Actuation Leakage (Act. Assy.)Test Data SheetExternal Leakage and Burst PressureTest Data Sheet

30

32

343739

41

43

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LIST OF ILLUSTRATIONS

Figure 1 Proof Pressure & Internal Leakage 221?Test Setup

Figure 2 Proof Pressure & External Leakage " 23-Test Setup

Figure 3 Proof Pressure & Leak Test Setup . 2!4--(Actuator Assembly)

Figure 4 Leak Test (Gross Leak) Setup

Figure 5 Actuation Test Setup 26'

Figure 6 Proof Pressure Test Setup 2-7 '•

Figure 7 Flow vs Pressure Drop Test Setup 2-8'

Figure 8 Post Actuation Leakage Test Setup 2-9(Less Actuator Assembly)

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INTRODUCTION AND SUMMARY

The Evaluation Test Program for the Explosive Actuated, Normally Closed,Titanium Valve, Model 1426, was conducted in compliance with JPL PurchaseOrder Number ES-565923.

The objective of this Evaluation Test Program was to demonstrate complianceof this valve with the requirements of JPL P. O. ES-565923 by a series ofoperating tests applied to two (2) valves.

There were no failures.

Compliance^of the Explosive Actuated, Normally Closed, Titanium Valve withall specification requirements was successfully demonstrated by this TestProgram.

Additionally, within the testing parameters specified, the JPL cartridgeP/N 10000029-1, demonstrated successfully its capability to properly actuatethe Model 1426 valves which underwent this testing program.

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DESCRIPTION OF CARTRIDGE ACTUATED, NORMALLY CLOSED,,TITANIUM VALVE MODEL 1426

"The Model 1426 is a normally closed, cartridge actuated, titanium valve Whichwill be utilized in the trajectory correction propulsion subsystem of theThermoelectric Outer Planets Spacecraft (TOPS).

The normally closed valve will be used to isolate and initiate the flow ofhydrazine to a 25 pound thrust monopropellant thruster.

The Model 1426 valves will be utilized in conjunction with the PyroneticsModel 1425, Cartridge Actuated, . Normally Open titanium valve in a manifoldedasserstbly to provide a multiple start-stop capability. Each assembly isnormally closed in the TOPS vehicle at launch. The projected usage of thepropulsion subsystem is for trajectory correction during mission durationas long as ten years in the interplanetary and outer space environments•within the solar system.

Upon actuation, the normally closed valves of each assembly will supply thefuel to the rocket engine assembly. Prior to actuation the propellant andpressurization fluids are isolated by the valves until engine ignition isdesired. Valve actuation is accomplished by explosive energy generatedwhen the JPL cartridges, P/N 10000029-1 are ignited by the applicationof electrical power.

The valves are mounted in the propulsion subsystem by welding the inletand outlet ports into a manifold tubular system. In the normally closedposition internal leakage is prevented by two integral nipples. Upon actuation,the nipples are sheared and retained within the valve body by a ram propelledby the pressure cartridge. A flow passage is opened through the valve bythe shearing of the nipples.

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EVALUATION TEST PROGRAM

EXPLOSIVE ACTUATED, TITANIUM VALVE

MODEL 1426 NORMALLY CLOSED

1.0 TEST PROGRAM

Two (2) normally closed valves were submitted for evaluation testingin accordance with Pyronetics Test Procedure TS 1426. The objectiveof the test $irogram was to verify design concept compatibility with thetest requirements of JPL P. O. ES 565923 for a normally closedexplosive ^alve that will control the flow of hydrazine to a 25 poundthrust monespropellant thruster. The cartridge utilized for actuationtesting (JPi, P/N 10000029-1) was supplied by Jet PropulsionLaboratory and underwent only the actuation test.

The two valves were subjected to the following test sequences:

1. -Proof Pressure and Internal Leakage Test (Body Subassembly)2. Proof Pressure and External Leakage Test

(Body Subassembly)3. Proof Pressure and Leakage Test (Actuator Assembly)4. Gross Leak Test (Actuator Assembly)5. Examination of Product6. Actuation Test7. Post Actuation Proof Pressure .8. Flow vs Pressure Drop Test9. Post Actuation Disassembly Inspection

10. Post Actuation Leakage (Actuator Assembly)11. Post Actuation Leakage-Gross (Actuator Assembly)12. External Leakage After Actuation

(Valve Assembly less Actuator Assembly)13;1. Burst Pressure Test


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2. 0 REFERENCE DOCUMENTS

The following documents comprise the criteria for this test program.

2.1 Military

MIL-C-45662A

MIL-P-27401B

MIL-P-27407

2.2 JPL

P.O. No. ES 565923

Drawing 10000029-1

2.3 Pyronetics

Drawing 1426

TS 1426

'Calibration System Requirements9 February 1962

Propellant, Pressurizing Agent Nitrogen,19 September, 1962

Propellant, Pressurizing.AgentHelium, 8 June 1965

Requirements for Fabrication,Assembly, and Test of NormallyOpen and Normally Closed,Explosive Actuated Valve

Squib

Valve, Normally Closed,Titanium

Acceptance and Evaluation TestProcedure7 December 1971

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3.0 TEST DESCRIPTION AND RESULTS

The evaluation test requirements, descriptions, and test results ofthe Normally Closed Valves, Pyronetics Model 1426, employed in theevaluation testrprxp-gram (in accordance with Pyronetics ProcedureTS 1426>) are described in the following paragraphs.

3. 1 Proof Pressure and Internal Leakage (Body Subassembly) 2 Units

R equir ement

(Reference JE1LP.O. ES-565923)

Each body subassembly shall be internally pressurized simul-taneously through both nipple tubes to 1000 + 30/-O psig withgaseous helium for thirty (30) minutes minimum. There shallbe no evidence of leakage in excess of 1 x 10" sec/sec ofhelium. The leakage shall be measured through the cartridgeport. There shall be no evidence of deformation or failure asa result of this test.

Test Description . r - . - ' ' - ' .

The proof and internal leakage test was performed on the valve•body subassembly during inprocess testing per TS 1426, priorto submitting the assembled valves to the functional evaluationtests. The normally closed valves •were subjected to a combinedproof pressure and internally leakage test. (See Figure 1).Each valve was simultaneously pressurized through both nippletubes to 1,000 _Q psig with gaseous helium. A test adaptorwas connected to the cartridge port which in turn was connectedto a helium mass spectrometer and subsequently evacuated to10" torr. The internal leakage was then monitored on themass spectrometer for 30 minutes minimum for evidence ofleakage in excess of 1 x 10" sees of helium. Upon completionof test, the valves were removed from the test system and thenipple tubes were blown off with gaseous nitrogen to prevent any-residual helium potentially entrapped in the "tubes from yieldingerroneous leakage rates during subsequent tests.

Test Results

None of the units tested sustained any evidence of yielding,permanent deformation or other visible damage. Additionally,the valves did not exhibit any detectable leakage in excess of1 x 10 sees. Maximum internal leakage recorded was5. 6 x 10~" sees. Reference test results in Appendix 1.

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3.0 TEST DESCRIPTION AND RESULTS (Continued)

3. 2 ProofrBres-gure and External Leakage (Body Subassembly) 2 Units

Requirement

(Reference JPL P.O. ES-565923)

Subject the body subassembly to an external leakage test byapplying a pressure of 1000 +30/-0 psig helium gas to theactuator cavity for a period of at least thirty (30) minutes.Measure the external leakage. The leakage shall not exceed1 x 10" sec/sec.

Test Description

The proof and external leakage test was performed on thevalve body subassembly during inprocess testing per TS1426 prior to submitting the assembled valves to thefunctional evaluation tests. The normally closed valves weresubjected to a combined proof pressure and external test

(v?*:*?. F(isee' Figure 2)/ Each valve was individually pressurized -'"through the cartridge port, while installed in a bell jar, to1000 _Q psig with gaseous helium. The bell jar was connectedto a helium mass spectrometer and subsequently evacuated to10 torr. The external leakage was then monitored on themass spectrometer for 30 minutes minimum for evidenceof leakage in excess of 1 x 10" sees of helium. Upon com-pletion of test, the valves were removed from the test systemand the cartridge port was blown off with gaseous nitrogen.

Test Results

None of the units tested sustained any evidence of yielding,permanent deformation or other visible damage. Additionally,the valves did not exhibit any detectable leakage in excess of1 x 10 sees. Maximum external leakage recorded was5. 0 x 10~° sees. Reference test results in Appendix 1.

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3. 0 TEST DESCRIPTION AND RESULTS (Continued)

3.3 Proof Pressure and Leakage Test (Actuator Assembly) 2 Units

Requirement


Each actuator assembly shall be installed in a suitable holdingfixture and subjected to an external pressure of 500 +10/-0psig with gaseous helium for thirty (30) minutes minimum.Following pressurization period, actuator assembly shall beremoved from the helium pressurization and subjected to ahelium mass spectrometer leak test. There shall be noevidence of leakage in excess of lac'1.10 sec/sec helium.There shall be no evidence of deformation or damage as aresult of these tests.

Test Description

The combined proof pressure and leakage test was performedon each actuator assembly prior to assembling into valvebody as an inprocess test per TS 1426. Each actuator sub-assembly was installed in a holding fixture as shown inFigure 3 and subjected to an external pressure of 500 _psig with gaseous helium for thirty minutes. The actuatorassembly was then removed from the pressure fixture andblown off with gaseous nitrogen and within sixty secondsafter removal from fixture was installed in the leakage testfixture. The test fixture was evacuated to 10 torr and theleakage rate from the actuator assembly was checked witha mass spectrometer for evidence of leakage in excess of1 x 10 sees., T;he initial value indicated by the massspectrometer was recorded. The bellows assembly wasthen visually examined for evidence of damage or deformationas a result of the proof pressure test.

Test Results

None of the units tested exhibited any evidence of yielding,permanent deformation, or other visible damage. Therewas no evidence of leakage in excess of 1 x 10~"Maximum leak rate recorded was 1.5 xtest results in Appendix 2.

10'8 sees,sees.

Reference


QC & R 6-051



3. 4 Gross Leak Test (Actuator Assembly) 2 Units


The actuator assembly shall be tested for gross leakage bysubmerging in hot deionized water at +180 -15°F and checkedfor evidence of bubbles.

Test Description

The gross leak test on the actuator assembly was performedprior? &o assembling into valve body as an in process testper ISlS 1426. Each actuator assembly was immersed in hotwate,\r p-180 -15 F) with axis in a horizontal position and the

air in the bellows was. removed by slightly agitatingthe a<<3ssembly, reference Figure 4. Actuator assembly wasmaiMisined immersed in the hot water for one minute minimumwhile- -uisually observing for bubble emission from the bellowsof ther actuator assembly as an indication of gross leakage.

Test B«sults

No evidence of bubble emission was detected from any of theactuator assemblies during the test. Hence, no gross leakswere found in the bellows area of the actuator assembly asrecorded on the data sheet of Appendix 2.

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3.5 Examination of Product (2 Units)

Requirement


Each valve body and component;, shall be visually examinedfor freedom from blemishes, tool marks, burrs, legibility,and correctness of markings and any other characteristicswhich reflect the general quality of workmanship. The size,configuration and mounting dimensions shall be in accordancewith the dimensions noted on the appropriate drawings. Theseunits shall be inspected with suitable gauges and/or instrumentsfor conformance to the dimensions noted on the appropriatedrawings, reference drawing 1426. The specimens shall bedeemed acceptable for testing if they conform to the drawingrequirements and are free from damage.

Test Description

The examination of product was performed upon completionof all the inprocess tests and prior to assembling the valve.Each valve body and components were visually examined forfreedom from blemishes, tool marks, and burrs; legibility andcorrectness of markings; and other characteristics whichreflected the general quality of workmanship. The size,configuration and mounting dimensions were inspected forconformance to the appropriate drawing.

Test Results ,.

All of the major dimensions and characteristics were onehundred percent inspected and were per print. The require-ments, results and verification of special processes are onfile at Pyronetics. Appendix 3 includes the ConfigurationIdentification Index-indicating the as built configuration ofthe valves, and inspection buy-off records. The index- 'indicates all documents, by revision letter, necessary forthe manufacture of the parts.

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3. 6 Actuation Test (2 Units)


The actuation test shall be performed on samples' selectedat random from the production lot. The valve shall beactuated while a water pressure of 500 psig is applied to oneof the normally closed nipples. - The response time shall bemeasured from bridgewire burnout to first indication ofpressure rise on the downstream side of the valve. Responsetime shall not exceed 10 milliseconds.

Test Description

The valves were mounted in a holding fixture as indicatedin Figure 5. A pressure transducer was connected on thedownstream side of the valves to detect response time. Thebridgewire resistance of each bridgewire on the 10000029-1 JPLcartridge was measured and recorded with an Alinco Ohmmeter.The normally closed - inlet-- tubes were pressurized to 500 Qpsig with water. The valves were actuated individually uponapplication of 5. 0 amperes from a constant current powersupply to one bridgewire of the cartridge while one inipple tubewas pressurized to 500 psig. The response time was measuredby the transducer installed on the downstream side of thevalve with an oscilloscope and camera. Upon actuation of thevalve, transfer of the valve to the open mode caused thepressure to rise on the downstream side as the water flowedthrough the valve. Hence, response time was measuredfrom bridgewire burnout to first indication of pressure riseon the downstream side of the valve.

Test Results l-/

The valves tested actuated to the -open" mode satisfactorilywithdut any detectable evidence of damage to the structuralintegrity of the valves. Response time, ranged 1. 95 tp-Z.Z5milliseconds for all valves. Hence all valves complied withthe 10 milliseconds (maximum\ response time requirement.Since both units passed the subsequent post actuation leakageand burst test, the test was deemed successful. See test datasheets in Appendix &,

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3. 7 Post Actuation Proof Pressure (2 Units)

Requirement


Each valve assembly shall be subjected to a hydrostatic pressureof 1000 +30/-0 psig. One (1) port shall be capped and the otherpressurized from 0 to 1000 psig for two (2) minutes minimum.There shall be no evidence of deformation or failure as a resultof this test, nor shall the ram retract.

Test ^Description

The a/ctaated valves were firmly secured in a proof testhoMasaig fixture (reference Figure 6) and one tube port wascozasfcected to a hydrostatic pressure source. The valves werepla<c&d behind a safety barricade and the tube port was slowly

to 1, 000 psig with water for two minutes.

Test. .Results ' • .- '-„..* \ *«__ —- . ».- r . v *

X ^None of the actuated valves ; tested^ exhibited any visualevidence of external leakage. The test was consideredsuccessful since the valves did not reveal evidence ofstructural damage, nor did the ram retract. Referencetest results in Appendix 5.

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3.0 TEST DESCRIPTION AND RESULTS (Continued)

3.8 Flow vs Pressure Drop Test (2 Units)

Requirements

(Reference JPL ES-565923)

The flow rate versus the pressure drop shall be determinedacross the open flowpath of each normally closed valve. Thepressure drop across the unit shall not exceed 5. 0 psid whena water pressure of 500 psig is applied at the inlet port and aflow of 0.15 Ibs/sec of l^O is established.

Te st De scripti'raa.

'. Each vaJhre was-' installed in a holding fixture (Ref. Figure 7),and the tuibe peats were pressurized to 500 psig with water whilea regulated flow rate through the open flow path was maintainedat 0. 15 Ifos/secv. The pressure drop through the entire systemwas determined'with a differential pressure gauge and recorded.The net pressure drop across the valve was determined bysubtracting the tare pressure drop from the gross pressuredrop. The tare pressure drop was determined by removingthe valve from Iche system and replacing it with a tare tube andrepeating the flow test. The tare tube is a straight section onehalf inch long and has the same I. D. and O. D. as the valveunder test.

Test Results

The flow test was performed on both of the actuated valves.Neither of the two units exceeded the maximum pressuredrop requirements of 5.0 psid. The test was considered .successfully passed since the net pressure drop was

. 90 psi. Actual test results are found in Appendix 5.

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3. 9•- Disassembly Inspection (2 Units)

Requirement


The JPL 10000029-1 squib shall be removed from the actuatorassembly and the actuator assembly shall be removed from ... - .the valve body. Valve and actuator assembly shall be /. .examined for prosper actuation and there shall be no evidenceof abnormal deformation, cracks, etc^ on the actuatorassembly bellows.

Test DescriptiQia.

The fired JPL, 10000029^1 cartridge was removed from theactuator assensMy first, then the actuator assembly wasremoved from t'fee valve body. Examination of the actuatorassembly was tisen performed under a 40X microscope forevidence of abnormal deformation, cracks, etc. on the bellowsand all observations were recorded, T-he valve body was alsovisually examined for proper actuation.

Test Results

No cracks or other anomalies were detected on the actuatorassembly bellows exterior. There was no evidence ofcartridge gas blowby. No visual! evidence of abnormaldeformation was found in the valve bodies. Thestructural integrity of the actuated valves appeared sound.Reference test results in Appendix 5.

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3. I© Posfc'Actuation Leakage (Actuator Assembly) 2 Units

Requirement


Each actuator assembly shall be installed in a suitable holdingfixture and subjected to an external pressure of 500 +10/-0psig with gaseous helium for thirty (30)nminutes minimum.Following pressurization period, actuator assembly shallbe removed from the helium pressurization and subjectedto a helium mass spectrometer leak test. There shall beho evidence of leakage in excess of 1 x 10" sec/sec helium.There shall be no evidence of deformation or damage as aresult of these tests.

Test Description

The actuator assembly from each actuated valve was installedin a holding fixture as shown in Figure 3-and externallypressurized with helium to 500 + :. psig for 30 minutes.Upon completion of the pressurization period the actuatorassembly was removed from the test fixture and within 60seconds was blown off externally with gaseous nitrogen andsubjected to .a leak check. A mass spectrometer was utilizedto check for evidence of leakage in excess of 1 x 10 sees.

Test Results

No evidence of leakage in excess of 1 x 10"° sees of heliumwas detected on any of the actuator assemblies. Maximumleakage rate detected was 1.7 x 10"8 sees. Referenceactual test .results in Appendix "6.

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3. 11 Post Actuation Gross Leakage (Actuator Assembly) 2 Units

•Requirement

^(Reference JPL P. O. ES-565923)

The actuator assemblies from the actuated valves shall betested for gross leakage by submerging in hot deionizedwater at +180 ±15°F and checking for evidence of bubbles.

Test Description

Each actuator assembly that had been removed from the 'actuated valve was immersed in hot water ( + 180 ±15°F)with axis in a horizontal position and the entrapped air inthe bellows was removed by slightly agitating the assembly,reference Figure 4, and checked for gross leakage. Actuatorassembly was maintained immersed in hot water for oneminute minimum while visually observing for bubble emissionfrom the bellows in the actuator assembly as an indication ofgross leakage^

Test Results

No evidence of bubble emission was detected in the bellowsarea during the time the actuator assembly was immersedin the hot water. Reference test results in Appendix 6.

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3. 0 TEST.DESCRIPTION AND RESULTS (Continued)

3. 12 External Leakage After Actuation (Valve Assembly LessActuator Assembly (2 Units)

Requirement


The external leakage after actuation of each valve shall bedetermined. The tube ports shall be pressurized to 1000+ 30/-0 psig with helium gas for a minimum duration ofthirty (30) minutes. The external leakage shall not exceed1 x 10 sec/sec of helium. The actuator assembly shall beremoved for this test.

jTest Description

Following the actuation test, the actuator assembly wasremoved from the valve body. The actuated valves werethen secured in a pressure fixture, reference Figure 8,placed in a bell jar and both tube ports were simultaneouslypressurized to 1000 "^i^ psig with helium gas. The bell jarwas connected to a helium mass spectrometer and thenevacuated to 10" torr. The valves were leak checkedfor evidence of external leakage by monitoring a massspectrometer for leakage in excess of 1 x 10"° sees ofhelium for 30 minutes.

Test Results

None of the valves tested exhibited any detectable externalleakage in excess of 1 x l lO sees during the 30 minutetest period. The post actuation leakage \rate recordedranged from 5. 0 x 10~^ to 9. 5 x 10"^ sees. Therefore,test was considered acceptable since no leakage in excessof 1 x 10-6 sees was detected. Reference test results inAppendix 7.

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3. 13 Post Actuation Burst Pressure Test (2 Units)

Requirement


The valve assembly (actuator assembly removed) shall besubjected to a burst pressure test and burst pressuredetermined. One nipple tube shall be capped and the otherpressurized with hydrostatic pressure from 0 to 10,000psig in increments of 1000 psig. Minimum burst pressureshall be 2000 psig. If unit fails to burst at 10, 000 psig

- pressure, discontinue test.

Test Description

The actuated valves were firmly secured in a burst test holdingfixture (reference Figure 6) and one nipple tube was capped andthe other was connected to a hydrostatic pressure source. The•valves were placed behind a safety barricade and the nipple tubewas slowly pressurized in increments of 1000 psig and maintainedfor 15 seconds at each level up to 10,000 psig with water. Duringthe testjvalves were visually examined for evidence of leakagewith the aid of a mirror.

Test Results '

None of the actuated valves burst tested exhibited any visualevidence of external leakage. The test was consideredsuccessful since the valves did not burst and no evidenceof structural damage was observed as a result of the burstpressure; Reference test results in Appendix 7.

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4.0 TEST PROGRAM CONCLUSIONS

Accomplishment of the evaluation tests in accordance with PyroneticsTest Procedure TS 1426, dated 7 December 1971, signify the acceptanceof the Normally-Closed, Explosive Actuated, Titanium Valve,Pyronetics Model 1426, as having fulfilled the test requirements ofJPL Purchase Order No. ES-565923. The evaluation test programwas conducted by Pyronetics and witnessed and acknowledged byJPL, Engineering.

Examination of the data included herein indicates excellent repeatabilityof all functional characteristics, i. e. , ignition time, response time,and flow vs pressure drop. Additionally, post actuation proof andleakage test of the actuator assembly and valve body revealedadequacy of the taper lock (metal-to-metal seal) between the ramand valve body after actuation. It should also be noted that theinternal proof pressure had no effect on the integrity of the shearsection of the normally closed nipple tubes.

The structural integrity of the valve assemblies was successfullydemonstrated by the post actuation 10, 000 psig burst test and inthe fact that the pre-actuation and post-actuation leak rates detectedwere much smaller than the 1 x 10"6 sees .requirements.

Finally, it should be noted, that the bellows which is incorporatedinto the valve design to positively prevent any cartridge productsof combustion from entering the flow stream, performed exactlyas required. Positive retention of all contamination was achieved.

Therefore, based on the data described herein, no changes to thevalve design are recommended.

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5. 0 TEST EQUIPMENT AND SETUPS

The test equipment and environmental apparatus employed in theperformance of the various tests described herein are listed below.All equipment was checked for reliable performance prior to initiationof specific-tests. Accuracy and capability is as specified and allcalibrations are traceable to the National Bureau of Standards.

5.1 Test Equipment - Proof Pressure and Leakage

InstrumentManufacturerModel No.RangeTypeCalib. Frequency

InstrumentManufacturerModel No.RangeAccuracy

InstrumentManuf actu re rModel No.RangeAccuracy :Calib. Due

InstrumentManufacturerModel No.RangeAccuracyCalib. Due

Mass SpectrometerConsolidated Electrodynamics.24-120B S/N 95935 x 1 0 ~ * 1 seesHelium DetectorPrior to use

Sensitivity CalibratorConsolidated Electrodynamics25643 S/N 122G6Helium Leak Rate 8 . 8 x 1 0~7 seest 10% of indicated leak rate

Pressure-GaugeMarsh Instrument Co.100 S/N 5070-1500 psi .t 0. 5%4-29-72

Stop WatchMinerva1 36-L S/N 13550-15 Min x . 01 sect 0.05-min/hr2-5-72 -

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5. 2 Test Equipment - Gross Leakage

Instrument Hot PlateManufacturer Thermolyne Corp.Model No. HP-A1915BRange ' 100-500° FAccuracy N/ACalib. Frequency N/A .

Instrument ThermometerManufactuere Van Waters RodgersModel No. N/ARange 0-230° FAccuracy 1" 1%

5v 3 Test Equipment - Examination of Product

As examination of products consists of visual inspections,dimensional measurements, surface finish inspectionmeasurements, all of the equipment necessary to performthese inspections will not be listed below. However, allinspection tools utilized in the accomplishment of this taskwere verified to be within calibration prior to use.

5. 4 Test Equipment - Actuation Test

Instrument Ignition Circuit TesterManufacturer AlincoModel No. 1015 AF S/N 501Range 0-10, 0-20 ohmsAccuracy - 0. 02 ohmsCalib. Due 6^-13-72

Instrument Constant Current Pulse GeneratorManufacturer E & R Development Co.Model No. PS-4A S/N 653Range 0 to 10 amp; O t o l O O m ' s e cAccuracy 3 0. 5 %Calib. Due 4-4-72

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5. 4 Test Equipment - Actuation Test (continued)

Instrument Charge AmplifierManufacturer Kistler Corp.Model No. 503 S/N 746Type Dial CalibrationRange 0-10 voltsCalib. Frequency Prior to use

Instrument Oscilloscope CameraManufacturer TektronixModel No. C12 S/N 003939

Instrument OscilloscopeManufacturer Tektronix

•Model No. 502 S/N 002367Type Dual BeamRange 1 00>* to 20 v/centimeterAccuracy - 3%Calib. Due 2-12-72

Instrument Pressure TransducerManufacturer Kistler Corp.Model No. 603H S/N 2773Range 0-15, ;000 psiAccuracy 1 1%Calib. Frequency Prior to use

5. 5 Test Equipment - Burst Pressure

Instrument Pressure Gauge-Manufacturer U.S. GaugeModel 19035, Serial No. 669Range 0-20, 000 psigAccuracy ' • ± 0. 5 % •

Calibration 4-18-72

Instrument Hydrostatic Test ConsoleManufacturer Pyronetics, Inc.Model No. N/ARange 0-20, 000 psigCalib. Frequency N/A

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QC & R 6-051


Holding Fixture

142620Body Subassembly

Vacuum Line

Shutoff Valve

oooo / VacuxVacuum

Pump

MassSpectrometer

Pressure Gage(0.1. 5 KSI)

Pressure Regulator

Gaseous Helium

FIGURE 1 PROOF PRESSURE & INTERNAL LEAKAGE TEST SETUP

22;-



QC & R 6-.051

Bell Jar

142620 BodySubassembly

Bleed-off Valve

Gaseous Helium

Mass Spectrometer

FIGURE 2 PROOF PRESSURE & EXTERNAL, LEAKAGE TEST SETUP

Pyroneticsa Cordon InternationalCompany 1002S SHOEMAKER AVENUE

QC & R 6-051


Bleed-off Valve

.Pressure RegulatorO-Ring

(Butyl)

Gas&Q.Us Helium Actuator Assembly(Test Specimen)

Holding Fixture

Pressure Gau:ge

(A) PROOF PRESSURE

\Actuator Assembly(Test Specimen)

-Vacuum- FixtureShut-off Valve

MassSpectrometer

Vacuum Pump

(B) LEAK TEST

FIGURE 3 PROOF PRESSURE & "LEAK TEST SETUP (ACTUATOR ASSEMBLY)

Pyroneticsa Cordon InternationalCompany to°2S SHOEMAKER AVENUE

S A N T A FE SPRINGS, CA. 90670

QC & R 6-051

MercuryThe rmomete r

Actuator Assembly

Beaker ofDeionized Water

Hot Plate

FIGURE 4 LEAK TEST (HOT WATER) SETUP

25,


QC & R 6-051


FIGURE 5 ACTUATION TEST SETUP

26


10025 SHOEMAKER AVENUESANTA ft SPRINGS. CA. 90670

QC & R 6-051

1426 Valve

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Cap

0-1.5 KS1Pressure Gauge

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FIGURE 6 PROOF PRESSURE TEST SETUP

27-:



QC & R'6-051

Flowmete r

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Nitrogen Supply

FlowControl /

Valve /

^Differential Pressure Gauge(0-5 psi)

FIGURE 7 FLOW VS PRESSURE DROP SETUP

28


10025 SHOEMAKER AVENUESANTA FE SPRINSS. CA. 90670

QC & R 6-051

BellJar

Cap

1426 Valve(Actuator Assembly

Removed)

Pressure Gauge(0-1. 5 KSI)

V Mass Spectrometer

Gaseous Helium

FIGURE 8 POST ACTUATION LEAKAGE TEST SETUP (LESS ACTUATOR ASSY.

29


QC & R 6-051


APPENDIX 1

PROOF PRESSURE, INTERNAL, AND EXTERNAL LEAKAGE

30

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QC & R 6-05 1

10025 SHOEMAKER AVENUESANTA F£ SPRIN6S, CA. 90670

APPENDIX 2

PROOF PRESSURE AND LEAKAGE;ACTUAT©R\ASSEMBLY

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EXAMINATION OF PRODUCT

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APPENDIX 4

ACTUATION TEST

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SANTA FE SPRIN6S, CA. 90670

APPENDIX 5

POST ACTUATION PROOF PRESSURE

FLOW VS PRESSURE DROP

DISASSEMBLY INSPECTION

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APPENDIX 6

POST ACTUATION LEAKAGE; ACTUATOR ASSEMBLY

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APPENDIX ,7

EXTERNAL LEAKAGE AND BURST PRESSURE

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