3040-00-494-1321 SHAFT,SHOULDERED Index 6680-00-494-1323 FLANGE AND CASE

National Stock Number:
4820-00-494-1322

Federal Supply Class:
4820

National Item Identification Number:
004941322

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:
991724-182577RAYTHEON COMPANY
TA294-10-10RX08992AGM CONTAINER CONTROLS INC


Techincal Specification:
END CONNECTION QUANTITY1
BODY STYLESINGLE CONNECTION, STRAIGHT FLOW
DISK LOADING METHODSPRING
FURNISHED ITEMSMANUAL UNLOADER ON VACUUM SIDE AND NUT AND GASKET AND WASHER
FIRST END CONNECTION TYPETHREADED EXTERNAL BOSS
FIRST END STYLE DESIGNATOREXTERNAL SEAT FOR GASKET SEAL
FIRST END THREAD CLASS3A
FIRST END THREAD DIRECTIONRIGHT-HAND
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALALUMINUM ALLOY 2024 BODY
MAXIMUM OPERATING PRESSURE2.0 POUNDS PER SQUARE INCH
MEDIA FOR WHICH DESIGNEDAIR
OPENING PRESSURE SETTING2.0 POUNDS PER SQUARE INCH
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625, TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
SURFACE TREATMENTANODIZE OUTSIDE
TEMP RATING-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT
VALVE RELIEF DESIGN TYPEPRESSURE AND VACUUM
VALVE VENTING DESIGN TYPEATMOSPHERIC


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