4820-00-529-2648 VALVE,SAFETY RELIEF Index 3020-00-529-2652 GEAR,HELICAL

National Stock Number:
4820-00-529-2649

Federal Supply Class:
4820

National Item Identification Number:
005292649

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.


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+91.0 TO 144.0 POUNDS PER SQUARE INCH
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEOUTSIDE SCREW-YOKE
CONNECTION STYLESOCKET 1ST END
CONNECTION TYPEUNTHREADED INTERNAL PIPE 1ST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEDISK
MATERIALCOPPER ALLOY BODY
MATERIALCOPPER ALLOY STEM
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY SEAT
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH 2ND RESPONSE
MAXIMUM OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH 1ST RESPONSE
MAXIMUM OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH 3RD RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES 1ST END
SPECIAL FEATURESW/LIFTING LEVER
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC


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