4820-00-287-2633 VALVE,SAFETY RELIEF Index 4820-00-287-2639 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-287-2634

Federal Supply Class:
4820

National Item Identification Number:
002872634

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:
14H74PC111660WESTINGHOUSE ELECTRIC CORP CONTROL BUSINESS UNIT
14H74PC179500WESTINGHOUSE ELECTRIC CORP


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+16.0 TO 25.0 POUNDS PER SQUARE INCH
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODTHREADED
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE350.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALCOPPER ALLOY OVERALL
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED2.500 INCHES FIRST END
NOMINAL PIPE SIZE ACCOMMODATED2.500 INCHES SECOND END
NOMINAL THREAD SIZE2.500 INCHES FIRST END
NOMINAL THREAD SIZE2.500 INCHES SECOND END
VALVE OPERATION METHODAUTOMATIC OR MANUAL
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD SERIES DESIGNATORNPT FIRST END
THREAD SERIES DESIGNATORNPT SECOND END


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