4820-01-135-2457 VALVE,SAFETY RELIEF Index 4810-01-135-2459 VALVE,SOLENOID

National Stock Number:
4820-01-135-2458

Federal Supply Class:
4820

National Item Identification Number:
011352458

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:
D559A-6M-791816CIRCOR AEROSPACE, INC.


Techincal Specification:
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODPRESSURE SEAL, RING TYPE
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
FURNISHED ITEMS AND QUANTITY1 DEFLECTOR CAP
FLOW CONTROL DEVICEPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SECOND RESPONSE
MAXIMUM OPERATING TEMP-40.0 FAHRENHEIT FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDACETYLENE SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDAMMONIA, GASEOUS THIRD RESPONSE
MEDIA FOR WHICH DESIGNEDHYDROGEN FIFTH RESPONSE
MEDIA FOR WHICH DESIGNEDREFRIGERANT 12 FOURTH RESPONSE
NOMINAL THREAD SIZE0.375 INCHES FIRST END
OPENING PRESSURE SETTING7.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORNPT FIRST END


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