4820-00-289-0913 VALVE,SAFETY RELIEF Index 4820-00-289-0918 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-289-0917

Federal Supply Class:
4820

National Item Identification Number:
002890917

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:
MIL-DTL-2433281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-V-2433281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+31.0 TO 60.0 POUNDS PER SQUARE INCH
BONNET ATTACHMENT METHODTHREADED
BONNET TYPEEXPOSED SPRING
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
DISK LOADING METHODSPRING
FEATURES PROVIDEDBONNET PACKING AND PRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE
OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE
MATERIALCOPPER ALLOY BODY
MATERIALCOPPER ALLOY FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY SEAT
MATERIALSTEEL STEM
MAXIMUM OPERATING TEMP100.0 FAHRENHEIT SECOND RESPONSE
MAXIMUM OPERATING TEMP400.0 FAHRENHEIT FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED1.000 INCHES FIRST END
NOMINAL PIPE SIZE ACCOMMODATED1.000 INCHES SECOND END
NOMINAL THREAD SIZE1.000 INCHES FIRST END
NOMINAL THREAD SIZE1.000 INCHES SECOND END
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD SERIES DESIGNATORNPT FIRST END
THREAD SERIES DESIGNATORNPT SECOND END
THREAD QUANTITY PER INCH11-1/2 FIRST END
THREAD QUANTITY PER INCH11-1/2 SECOND END


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