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National Stock Number:
4820-00-620-5475
Federal Supply Class:
4820
National Item Identification Number:
006205475
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:
| 568175 | 57733 | STEWART-WARNER CORPORATION | | P7-249-5 | 91816 | CIRCOR AEROSPACE, INC. |
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Techincal Specification:
| END CONNECTION QUANTITY | 1 | | BODY STYLE | SINGLE CONNECTION, STRAIGHT FLOW | | DISK LOADING METHOD | SPRING | | FIRST END CONNECTION TYPE | THREADED EXTERNAL BOSS | | FIRST END STYLE DESIGNATOR | PLAIN | | FIRST END THREAD DIRECTION | RIGHT-HAND | | FIRST END THREAD CLASS | 2A | | FLOW CONTROL DEVICE | DISK, FLAT, BOTTOM GUIDED | | MATERIAL | ALUMINUM ALLOY BODY | | MATERIAL | ALUMINUM ALLOY FLOW CONTROL DEVICE | | MEDIA FOR WHICH DESIGNED | AIR | | OPENING PRESSURE SETTING | 2.0 POUNDS PER SQUARE INCH | | OPERATING PRESSURE | 5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM | | VALVE VENTING DESIGN TYPE | CLOSED SYSTEM | | SURFACE TREATMENT | ANODIZE OUTSIDE | | TEMP RATING | -65.0 CELSIUS AND 85.0 CELSIUS |
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