6210-01-220-7679 LIGHT,INDICATOR Index 4820-01-220-7681 VALVE,FOOT

National Stock Number:
4820-01-220-7680

Federal Supply Class:
4820

National Item Identification Number:
012207680

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:
1035A001106481NORTHROP GRUMMAN SYSTEMS CORPORATION
622RG15939STRATOTECH LLC


Techincal Specification:
END CONNECTION QUANTITY1
BODY STYLESINGLE CONNECTION STRAIGHT THRU
DISK LOADING METHODSPRING
FURNISHED ITEMSGASKET AND NUT
FIRST END CONNECTION TYPETHREADED EXTERNAL BOSS
FIRST END NOMINAL THREAD SIZE0.750 INCHES
FIRST END STYLE DESIGNATOREXTERNAL SEAT FOR GASKET SEAL
FIRST END THREAD CLASS3A
FIRST END THREAD DIRECTIONRIGHT-HAND
FIRST END THREAD SERIES DESIGNATORUNF
FLOW CONTROL DEVICEPOPPET
MAXIMUM OPERATING PRESSURE3.0 POUNDS PER SQUARE INCH
OPENING PRESSURE SETTING1.5 POUNDS PER SQUARE INCH
TEMP RATING160.0 FAHRENHEIT
VALVE RELIEF DESIGN TYPEPRESSURE
VALVE VENTING DESIGN TYPEATMOSPHERIC


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