4820-01-233-8958 VALVE,SAFETY RELIEF Index 4820-01-233-8960 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-233-8959

Federal Supply Class:
4820

National Item Identification Number:
012338959

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:
1543-1-F16497DRESSER, INC.
1543F-1IN5T250PSI16497DRESSER, INC.


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+5.0 TO 250.0 POUNDS PER SQUARE INCH
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
FLOW CONTROL DEVICEDISK
MATERIALCOPPER ALLOY OVERALL
MAXIMUM OPERATING TEMP406.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDGAS, INERT SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM THIRD RESPONSE
NOMINAL THREAD SIZE1.000 INCHES SECOND END
NOMINAL THREAD SIZE1.250 INCHES FIRST END
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS


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