4820-01-415-7284 VALVE,REGULATING,FLUID PRESSURE Index 4820-01-415-7286 FLANGE,GLAND,VALVE

National Stock Number:
4820-01-415-7285

Federal Supply Class:
4820

National Item Identification Number:
014157285

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:
101008100365TLD ACE CORP
3220-37558553SUPERIOR VALVE CO
527-37528193HENRY TECHNOLOGIES, INC.


Techincal Specification:
CONNECTION STYLEFLARED (TUBE) SECOND END
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEDISK
MATERIALCOPPER ALLOY BODY
MEDIA FOR WHICH DESIGNEDREFRIGERANT 12 FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDREFRIGERANT 22 SECOND RESPONSE
NOMINAL THREAD SIZE0.500 INCHES FIRST END
NOMINAL THREAD SIZE0.625 INCHES SECOND END
OPENING PRESSURE SETTING375.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
SEAT ANGLE45.0 DEGREES ALL ENDS
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORANGLE
THREAD CLASS3A SECOND END
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORNPT FIRST END
THREAD SERIES DESIGNATORUNF SECOND END


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