4820-01-258-1036 VALVE,CHECK Index 4820-01-258-1038 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-258-1037

Federal Supply Class:
4820

National Item Identification Number:
012581037

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:
11186-50204953EDO AIL SYSTEMS INC
SS-4R3A5-B02570SWAGELOK CO
SS-4R3A5-B18034NUPRO CO
SS-4R3A5-B3T9T9SWAGELOK CO


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALSTEEL CORROSION RESISTING OVERALL
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
WATER, SALT 2ND RESPONSE
MAXIMUM OPERATING TEMP70.0 DEG FAHRENHEIT 1ST RESPONSE
21.0 DEG CELSIUS 2ND RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE 1ST END
THREADED INTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN (PIPE) 1ST END
PLAIN,OPTIONAL END(PIPE) 2ND END
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
OPENING PRESSURE SETTING502.0 POUNDS PER SQUARE INCH


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