4820-00-289-0897 VALVE,SAFETY RELIEF Index 4820-00-289-0908 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-289-0899

Federal Supply Class:
4820

National Item Identification Number:
002890899

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.


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+20.0 TO 100.0 POUNDS PER SQUARE INCH
BONNET ATTACHMENT METHODINTEGRAL
BONNET TYPEINSIDE SCREW
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEDISK
MATERIALCOPPER ALLOY BODY
MATERIALCOPPER ALLOY SEAT
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MAXIMUM OPERATING TEMP100.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES 1ST END
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
VALVE OPERATION METHODAUTOMATIC


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