4820-00-516-4402 VALVE,SAFETY RELIEF Index 4820-00-516-4407 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-516-4403

Federal Supply Class:
4820

National Item Identification Number:
005164403

Description:
VALVE,SAFETY RELIEF

Detail:
A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.


Manufacturer Information:
A40004-181982HYDRO-AIRE AEROSPACE CORP


Techincal Specification:
STYLE DESIGNATORSTRAIGHT THRU
VALVE OPERATION METHODAUTOMATIC
MATERIALALUMINUM ALLOY BODY
STEEL CORROSION RESISTING FLOW CONTROL DEVICE
STEEL CORROSION RESISTING SEAT
STEEL CORROSION RESISTING STEM
FLOW CONTROL DEVICEPOPPET
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP180.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE2.5 GALLONS PER MINUTE
CONNECTION TYPETHREADED INTERNAL BOSS 1ST END
CONNECTION STYLEGASKET SEAL(BOSS) 1ST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES 1ST END
THREAD SERIES DESIGNATORUNF 1ST END
NOMINAL THREAD SIZE0.437 INCHES 1ST END
THREAD QUANTITY PER INCH20 1ST END
THREAD CLASS3B 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
BONNET TYPEPACKING RETAINING
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING1050.0 POUNDS PER SQUARE INCH
SPECIAL FEATURESREVERSE FLOW
THE MANUFACTURERS DATA
MANUFACTURERS CODE81982
DESIGN CONTROL REFERENCEA40004-1


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