4820-00-287-3148 VALVE,SAFETY RELIEF Index 4820-00-287-3154 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-287-3152

Federal Supply Class:
4820

National Item Identification Number:
002873152

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:
833T1A405081336CHIEF OF ENGINEERS DEPT OF ARMY
T1A405017431ILLINOIS TOOL WORKS INC.
TIA505017431ILLINOIS TOOL WORKS INC.


Techincal Specification:
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODTHREADED
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
DISK LOADING METHODSPRING
FEATURES PROVIDEDVALVE STEM LOCK SHIELD
FLOW CONTROL DEVICEPOPPET
OPERATING PRESSURE40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE
MATERIALCOPPER ALLOY OVERALL
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES FIRST END
NOMINAL THREAD SIZE0.250 INCHES FIRST END
OPENING PRESSURE SETTING50.0 POUNDS PER SQUARE INCH
VALVE DISCHARGE FLOW RATE55.0 CUBIC FEET PER MINUTE
VALVE OPERATION METHODAUTOMATIC OR MANUAL
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORNPT FIRST END


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