4820-00-288-6935 VALVE,SAFETY RELIEF Index 4820-00-288-6939 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-288-6938

Federal Supply Class:
4820

National Item Identification Number:
002886938

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:
14932-0104537ATWOOD & MORRILL CO. INC. DBA WEIR VALVES AND CONTROLS USA


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER9.500 INCHES FIRST END
BOLT HOLE NOMINAL DIAMETER0.875 INCHES FIRST END
BOLT HOLE QUANTITY8 FIRST END
CONNECTION TYPEFLANGE FIRST END
DISK LOADING METHODSPRING
FLANGE FACE DESIGNPLAIN FIRST END
FLANGE SHAPEROUND WITH HOLES FIRST END
FLOW CONTROL DEVICEPOPPET
OPENING PRESSURE SETTING3.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALCOPPER ALLOY BODY
MATERIALCOPPER ALLOY FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY SEAT
MATERIALCOPPER ALLOY STEM
MAXIMUM OPERATING TEMP425.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER11.000 INCHES FIRST END
NOMINAL THICKNESS1.000 INCHES FIRST END
SPECIAL FEATURESW/LIFTING LEVER
VALVE OPERATION METHODMANUAL
STYLE DESIGNATORANGLE


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