3120-01-044-5997 BUSHING,SLEEVE Index 4820-01-044-6000 VALVE,RESTRICTOR CHECK

National Stock Number:
4820-01-044-5998

Federal Supply Class:
4820

National Item Identification Number:
010445998

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:
559B-2M-30091816CIRCOR AEROSPACE, INC.
HP559B-2M-30091816CIRCOR AEROSPACE, INC.


Techincal Specification:
STYLE DESIGNATORSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
COPPER ALLOY AND
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
COPPER ALLOY SEAT
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
GAS, INERT 2ND RESPONSE
HYDROGEN 3RD RESPONSE
REFRIGERANT 12 4TH RESPONSE
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP250.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE 1ST END
CONNECTION STYLEPLAIN (PIPE) 1ST END
THREAD SERIES DESIGNATORNPT 1ST END
NOMINAL THREAD SIZE0.250 INCHES 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING300.0 POUNDS PER SQUARE INCH
SPECIAL FEATURESPOP-OFF TYPE


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