4820-00-142-1013 VALVE,SAFETY RELIEF Index 4820-00-142-1020 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-142-1014

Federal Supply Class:
4820

National Item Identification Number:
001421014

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:
225001343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
A6814A01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALSTEEL BODY
NICKEL ALLOY FLOW CONTROL DEVICE
NICKEL ALLOY SEAT
NICKEL ALLOY STEM
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDWATER, FRESH SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
FLANGE 2ND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 1ST END
FLANGE SHAPEROUND WITH HOLES 2ND END
NOMINAL OUTSIDE DIAMETER3.875 INCHES 2ND END
NOMINAL THICKNESS0.438 INCHES 2ND END
BOLT HOLE QUANTITY4 2ND END
BOLT HOLE NOMINAL DIAMETER0.500 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER2.750 INCHES 2ND END
FLANGE FACE DESIGNRAISED STRAIGHT 2ND END
RAISED FACE NOMINAL HEIGHT0.062 INCHES 2ND END
RAISED FACE NOMINAL DIAMETER1.688 INCHES 2ND END
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES 1ST END
THREAD SERIES DESIGNATORNPT 1ST END
NOMINAL THREAD SIZE0.500 INCHES 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
RENEWABLE SEAT RING TYPETHREADED
BONNET TYPEEXPOSED SPRING
BONNET ATTACHMENT METHODBOLTED
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE31.0 TO 50.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDBONNET PACKING


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