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:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
NICKEL ALLOY FLOW CONTROL DEVICE
COPPER ALLOY SEAT
BRONZE STEM
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDSTEAM 1ST RESPONSE
WATER-OIL-GAS 2ND RESPONSE
MAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP425.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPEFLANGE 1ST END
UNTHREADED INTERNAL PIPE 2ND END
CONNECTION STYLESOCKET 2ND END
FLANGE SHAPEROUND WITH HOLES 1ST END
NOMINAL OUTSIDE DIAMETER4.250 INCHES 1ST END
NOMINAL THICKNESS0.375 INCHES 1ST END
BOLT HOLE QUANTITY4 1ST END
BOLT HOLE NOMINAL DIAMETER0.625 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER3.125 INCHES 1ST END
FLANGE FACE DESIGNPLAIN 1ST END
NOMINAL PIPE SIZE ACCOMMODATED1.000 INCHES 2ND END
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODBOLTED
ADJUSTABLE PRESSURE RANGE91.0 TO 105.0 POUNDS PER SQUARE INCH


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