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:
ADJUSTABLE PRESSURE RANGE+31.0 TO 50.0 POUNDS PER SQUARE INCH
BOLT HOLE NOMINAL DIAMETER0.500 INCHES 2ND END
BOLT HOLE QUANTITY4 2ND END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEEXPOSED SPRING
BOLT CIRCLE NOMINAL DIAMETER2.750 INCHES 2ND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 1ST END
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
CONNECTION TYPEFLANGE 2ND END
DISK LOADING METHODSPRING
FEATURES PROVIDEDBONNET PACKING
FLANGE FACE DESIGNRAISED STRAIGHT 2ND END
FLANGE SHAPEROUND WITH HOLES 2ND END
FLOW CONTROL DEVICEDISK
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY SEAT
MATERIALNICKEL ALLOY STEM
MATERIALSTEEL BODY
MAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDWATER, FRESH SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER3.875 INCHES 2ND END
NOMINAL THICKNESS0.438 INCHES 2ND END
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES 1ST END
NOMINAL THREAD SIZE0.500 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER1.688 INCHES 2ND END
RAISED FACE NOMINAL HEIGHT0.062 INCHES 2ND END
RENEWABLE SEAT RING TYPETHREADED
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD SERIES DESIGNATORNPT 1ST END


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