1680-00-620-5474 GASKET Index 1680-00-620-5478 BUMPER,EJECTION SEA

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.


Manufacturer Information:
56817557733STEWART-WARNER CORPORATION
P7-249-591816CIRCOR AEROSPACE, INC.


Techincal Specification:
END CONNECTION QUANTITY1
BODY STYLESINGLE CONNECTION, STRAIGHT FLOW
DISK LOADING METHODSPRING
FIRST END CONNECTION TYPETHREADED EXTERNAL BOSS
FIRST END STYLE DESIGNATORPLAIN
FIRST END THREAD DIRECTIONRIGHT-HAND
FIRST END THREAD CLASS2A
FLOW CONTROL DEVICEDISK, FLAT, BOTTOM GUIDED
MATERIALALUMINUM ALLOY BODY
MATERIALALUMINUM ALLOY FLOW CONTROL DEVICE
MAXIMUM OPERATING PRESSURE5.0 POUNDS PER SQUARE INCH
MEDIA FOR WHICH DESIGNEDAIR
OPENING PRESSURE SETTING2.0 POUNDS PER SQUARE INCH
SURFACE TREATMENTANODIZE OUTSIDE
TEMP RATING-65.0 CELSIUS AND 85.0 CELSIUS
VALVE VENTING DESIGN TYPECLOSED SYSTEM


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