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National Stock Number:
4820-01-078-4789
Federal Supply Class:
4820
National Item Identification Number:
010784789
Description:
VALVE,PRESSURE EQUALIZING,GASEOU
Detail:
A VALVE CONSISTING OF A SINGLE DEADWEIGHT LOADED DISK, OR TWO DEADWEIGHT LOADED DISKS EACH WITH A SEPERATE SEAT. IT IS SPECIFICALLY DESIGNED FOR THE RELIEF OF SMALL PRESSURE AND VACUUM CONDITIONS WITHIN A TANK OR OTHER CONTAINER TO OR FROM THE ATMOSPHERE. THE CENTER OF A SINGLE DEADWEIGHT LOADED DISK MAY CONTAIN A SPRING LOADED DISK FORMING AN ADDITIONAL SEAT OR APERTURE. IT MAY BE SPRING LOADED AND/OR EQUIPPED WITH A MANUAL UNLOADER ON EITHER THE PRESSURE OR VACUUM SIDE. EXCLUDE VALVE, VACUUM BREAKING.
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Manufacturer Information:
| 750-RP-7.5 | 98021 | HALKEY-ROBERTS CORP | | SM-C-774135 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | | SM-C-774135-2 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| END CONNECTION QUANTITY | 1 | | FIRST END CONNECTION TYPE | THREADED EXTERNAL TUBE | | FIRST END STYLE DESIGNATOR | PLAIN | | FIRST END THREAD DIRECTION | RIGHT-HAND | | FIRST END THREAD CLASS | 3A | | FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.375 INCHES NOMINAL | | FLOW CONTROL DEVICE | POPPET | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/3, ALLOY 2011, T3 FED SPEC SINGLE MATERIAL RESPONSE BODY | | MATERIAL | ALUMINUM ALLOY 2011 BODY | | OPENING PRESSURE SETTING | 7.5 POUNDS PER SQUARE INCH | | TEMP RATING | -65.0 FAHRENHEIT AND 180.0 FAHRENHEIT |
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