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:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODMANUAL
MATERIALCOPPER ALLOY BODY
COPPER ALLOY FLOW CONTROL DEVICE
COPPER ALLOY SEAT
COPPER ALLOY STEM
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP425.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPEFLANGE 1ST END
FLANGE SHAPEROUND WITH HOLES 1ST END
NOMINAL OUTSIDE DIAMETER11.000 INCHES 1ST END
NOMINAL THICKNESS1.000 INCHES 1ST END
BOLT HOLE QUANTITY8 1ST END
BOLT HOLE NOMINAL DIAMETER0.875 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER9.500 INCHES 1ST END
FLANGE FACE DESIGNPLAIN 1ST END
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING3.0 POUNDS PER SQUARE INCH
SPECIAL FEATURESW/LIFTING LEVER


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