4820-01-187-1125 VALVE,SAFETY RELIEF Index 4820-01-187-1127 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-187-1126

Federal Supply Class:
4820

National Item Identification Number:
011871126

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:
804101343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
8041-100M-4101343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+91.0 TO 105.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER3.125 INCHES FIRST END
BOLT HOLE NOMINAL DIAMETER0.625 INCHES FIRST END
BOLT HOLE QUANTITY4 FIRST END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEINSIDE SPRING
CONNECTION STYLESOCKET SECOND END
CONNECTION TYPEFLANGE FIRST END
CONNECTION TYPEUNTHREADED INTERNAL PIPE SECOND END
FLANGE FACE DESIGNPLAIN FIRST END
FLANGE SHAPEROUND WITH HOLES FIRST END
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALBRONZE STEM
MATERIALCOPPER ALLOY BODY
MATERIALCOPPER ALLOY SEAT
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MAXIMUM OPERATING TEMP425.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
NOMINAL OUTSIDE DIAMETER4.250 INCHES FIRST END
NOMINAL THICKNESS0.375 INCHES FIRST END
NOMINAL PIPE SIZE ACCOMMODATED1.000 INCHES SECOND END
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORANGLE


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