5340-01-240-2723 COVER,ACCESS Index 4820-01-240-2725 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-240-2724

Federal Supply Class:
4820

National Item Identification Number:
012402724

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:
284-0290-00494756THE BOEING COMPANY
50031C2796MAIBACHINDUSTRIE-PLASTIC-GESELLSCHAF MBH
TA770-075C-075C-R08992AGM CONTAINER CONTROLS INC
MIL-V-2716681349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
END CONNECTION QUANTITY1
BODY STYLESINGLE CONNECTION, STRAIGHT FLOW
FURNISHED ITEMSGASKET AND WASHER AND NUT
FIRST END CONNECTION TYPETHREADED EXTERNAL TUBE
FIRST END STYLE DESIGNATORPLAIN
FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED2.050 INCHES NOMINAL
FIRST END THREAD DIRECTIONRIGHT-HAND
FIRST END THREAD CLASS2A
FLOW CONTROL DEVICEDISK, FLAT
MATERIALALUMINUM ALLOY BODY
MEDIA FOR WHICH DESIGNEDAIR
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 1 CLASS
OPENING PRESSURE SETTING0.3 POUNDS PER SQUARE INCH
SPECIFICATION/STANDARD DATA81349-MIL-V-27166 GOVERNMENT SPECIFICATION
SURFACE TREATMENTANODIZE OUTSIDE
TEMP RATING160.0 FAHRENHEIT
VALVE RELIEF DESIGN TYPEPRESSURE AND VACUUM
VALVE VENTING DESIGN TYPEATMOSPHERIC


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