4820-01-021-2756 VALVE,SAFETY RELIEF Index 4810-01-021-2758 VALVE,SOLENOID

National Stock Number:
4820-01-021-2757

Federal Supply Class:
4820

National Item Identification Number:
010212757

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:
84-4S 3/4X1-1/4-5001343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
84-S01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
84-S 3/4MX1-1/4F-5001343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY


Techincal Specification:
BONNET ATTACHMENT METHODTHREADED
BONNET TYPEINSIDE SPRING
CONNECTION TYPETHREADED EXTERNAL PIPE 1ST END
CONNECTION TYPETHREADED INTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN (PIPE) 1ST END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 2ND END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIALSTEEL CORROSION RESISTING BODY
MAXIMUM OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH 1ST RESPONSE
MAXIMUM OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH 2ND RESPONSE
MAXIMUM OPERATING TEMP300.0 FAHRENHEIT 2ND RESPONSE
MAXIMUM OPERATING TEMP406.0 FAHRENHEIT 1ST RESPONSE
MEDIA FOR WHICH DESIGNEDGAS, INERT 3RD RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM 1ST RESPONSE
MEDIA FOR WHICH DESIGNEDAIR 2ND RESPONSE
NOMINAL THREAD SIZE0.750 INCHES 1ST END
NOMINAL THREAD SIZE1.250 INCHES 2ND END
OPENING PRESSURE SETTING50.0 POUNDS PER SQUARE INCH
POWER DRIVE OPERATING PRESSURE50.0 POUNDS PER SQUARE INCH NOMINAL
RENEWABLE SEAT RING TYPETHREADED
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD DIRECTIONRIGHT-HAND 2ND END
THREAD SERIES DESIGNATORNPT 1ST END
THREAD SERIES DESIGNATORNPT 2ND END
VALVE OPERATION METHODAUTOMATIC


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