4820-01-278-7332 VALVE,SAFETY RELIEF Index 4820-01-278-7334 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-278-7333

Federal Supply Class:
4820

National Item Identification Number:
012787333

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:
5159B-10M-27591816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL PIPE 1ST END
CONNECTION STYLEPLAIN (PIPE) 1ST END
FLOW CONTROL DEVICEPOPPET
MATERIALCOPPER ALLOY BODYRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
MAXIMUM OPERATING TEMP-40.0 FAHRENHEIT 1ST RESPONSE250.0 FAHRENHEIT 2ND RESPONSE
MAXIMUM OPERATING PRESSURE2500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSEACETYLENE 2ND RESPONSEAMMONIA, GASEOUS 3RD RESPONSEAMMONIA, LIQUID 4TH RESPONSEREFRIGERANT 12 5TH RESPONSE
NOMINAL THREAD SIZE1.250 INCHES 1ST END
OPENING PRESSURE SETTING275.0 POUNDS PER SQUARE INCH
SPECIAL FEATURESDISCARGES TO ATMOSPHERE
STYLE DESIGNATORSTRAIGHT THRU
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD SERIES DESIGNATORNPT 1ST END
VALVE OPERATION METHODAUTOMATIC


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