4810-01-411-2147 PISTON,VALVE Index 4820-01-411-2149 VALVE,GLOBE

National Stock Number:
4820-01-411-2148

Federal Supply Class:
4820

National Item Identification Number:
014112148

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:
516739253711NAVAL SEA SYSTEMS COMMAND
TA770-129108992AGM CONTAINER CONTROLS INC


Techincal Specification:
ABSOLUTE PRESSURE SETTING0.7
BODY STYLESINGLE CONNECTION, STRAIGHT FLOW
DISK LOADING METHODSPRING
END CONNECTION QUANTITY1
FIRST END CONNECTION TYPETHREADED EXTERNAL PIPE
FIRST END STYLE DESIGNATORPLAIN
FIRST END THREAD DIRECTIONRIGHT-HAND
FIRST END THREAD SERIES DESIGNATORUNS
FIRST END NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES
FIRST END NOMINAL THREAD SIZE2.000 INCHES
FLOW CONTROL DEVICEDISK, FLAT
MATERIALALUMINUM BODY
MEDIA FOR WHICH DESIGNEDAIR
OPENING PRESSURE SETTING0.7 POUNDS PER SQUARE INCH
VALVE VENTING DESIGN TYPECLOSED SYSTEM


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