4820-01-250-1756 VALVE,SAFETY RELIEF Index 4820-01-250-1758 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-250-1757

Federal Supply Class:
4820

National Item Identification Number:
012501757

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:
RA101S30076M6AMZ ALABAMA INC.
RA101S3009990PARKER-HANNIFIN CORPORATION
RA101S300FW39BAE SYSTEMS TACTICAL VEHICLE SYSTEMS LP


Techincal Specification:
STYLE DESIGNATORSCREW-IN CARTRIDGE
VALVE OPERATION METHODAUTOMATIC
MATERIALSTEEL BODY
FLOW CONTROL DEVICEPOPPET
MAXIMUM OPERATING PRESSURE3500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP250.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPETHREADED CARTRIDGE ALL ENDS
CONNECTION STYLEPLAIN (SCREW-IN CARTRIDGE) ALL ENDS
THREAD SERIES DESIGNATORUNF ALL ENDS
NOMINAL THREAD SIZE0.875 INCHES ALL ENDS
THREAD CLASS2A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING1500.0 POUNDS PER SQUARE INCH
SPECIAL FEATURESCARTRIDGE TYPE; PILOT-OPERATED


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