4820-01-203-3998 VALVE,CHECK Index 4820-01-203-4000 VALVE,RESTRICTOR CHECK

National Stock Number:
4820-01-203-3999

Federal Supply Class:
4820

National Item Identification Number:
012033999

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:
10413346A486GNIMIKKEISTOKESKUS NCB FINLAND
D524B-1M-252U435DELA TECHNOLOGY CORPORATION
D524B-1M-2591816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
FLOW CONTROL DEVICEPLUG
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FOURTH RESPONSE
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM THIRD RESPONSE
MATERIALCOPPER ALLOY BODY
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT FIRST RESPONSE
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT FOURTH RESPONSE
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT SECOND RESPONSE
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT THIRD RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDOIL, CHLORINATED TRANSFORMER SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDOXYGEN, LIQUID FOURTH RESPONSE
MEDIA FOR WHICH DESIGNEDOXYGEN, GASEOUS THIRD RESPONSE
NOMINAL THREAD SIZE0.125 INCHES FIRST END
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORNPT FIRST END


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