4820-01-557-3021 VALVE,BALL Index 4820-01-555-9392 VALVE,FLOW CONTROL

National Stock Number:
4820-01-557-7146

Federal Supply Class:
4820

National Item Identification Number:
015577146

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.


Manufacturer Information:
790RPV050598021HALKEY-ROBERTS CORP
C790RPV050598021HALKEY-ROBERTS CORP
C790RPV0505K0967MBDA UK LTD


Techincal Specification:
MATERIALALUMINUM BODY
PART NAME ASSIGNED BY CONTROLLING AGENCYDUAL ACTION BREATHER VALVE
SPECIAL FEATURESDIAMETER 1.5 INCH HEX


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