4820-01-278-9871 VALVE,SAFETY RELIEF Index 4820-01-278-9873 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-278-9872

Federal Supply Class:
4820

National Item Identification Number:
012789872

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:
147116497DRESSER, INC.
1471-2IN16497DRESSER, INC.
1471-2IN 51T75PSI16497DRESSER, INC.


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+51.0 TO 75.0 POUNDS PER SQUARE INCH
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
CONNECTION TYPETHREADED INTERNAL PIPE SECOND END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALBRONZE BODY
MATERIALCOPPER ALLOY SEAT
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
NOMINAL THREAD SIZE2.000 INCHES ALL ENDS
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS


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