4820-00-287-2989 VALVE,SAFETY RELIEF Index 4820-00-287-3011 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-287-2996

Federal Supply Class:
4820

National Item Identification Number:
002872996

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:
MILV2006581349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
TYA1CLC3-8 400-136T0169SBU03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
COPPER ALLOY FLOW CONTROL DEVICE
COPPER ALLOY SEAT
COPPER ALLOY STEM
FLOW CONTROL DEVICEDISK
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH 1ST RESPONSE
400.0 POUNDS PER SQUARE INCH 2ND RESPONSE
MAXIMUM OPERATING TEMP425.0 DEG FAHRENHEIT 1ST RESPONSE
150.0 DEG FAHRENHEIT 2ND RESPONSE
CONNECTION TYPEUNTHREADED INTERNAL PIPE 1ST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES 1ST END
RENEWABLE SEAT RING TYPETHREADED
BONNET TYPEEXPOSED SPRING
BONNET ATTACHMENT METHODUNION
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE136.0 TO 169.0 POUNDS PER SQUARE INCH
NONDEFINITIVE SPEC/STD DATA1 TYPE AND
C CLASS
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMILV20065


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