4820-01-280-8940 VALVE,SAFETY RELIEF Index 4820-01-280-8942 VALVE,BUTTERFLY

National Stock Number:
4820-01-280-8941

Federal Supply Class:
4820

National Item Identification Number:
012808941

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:
NMP-156701343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
NMP-156715187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
NMP-1567 699T778PSI01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
NMP-1567 699T778PSI15187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
NMP-1567 699T778PSI75954KUNKLE INDUSTRIES INC LONERGAN VALVE DIV
NMP-156775954KUNKLE INDUSTRIES INC LONERGAN VALVE DIV


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+699.0 TO 778.0 POUNDS PER SQUARE INCH
BOLT HOLE NOMINAL DIAMETER0.875 INCHES 1ST END
BOLT HOLE NOMINAL DIAMETER1.375 INCHES 2ND END
BOLT HOLE QUANTITY12 1ST END
BOLT HOLE QUANTITY8 2ND END
BOLT CIRCLE NOMINAL DIAMETER10.625 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER9.500 INCHES 2ND END
BONNET ATTACHMENT METHODUNION
BONNET TYPEINSIDE SPRING
CONNECTION TYPEFLANGE ALL ENDS
DISK LOADING METHODSPRING
FIRST CONNECTION FACE TO CENTERLINE DISTANCE9.250 INCHES
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICEDISK
MATERIALSTEEL BODY
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING STEM
MAXIMUM OPERATING TEMP800.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE1650.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER12.250 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER12.500 INCHES 1ST END
NOMINAL THICKNESS1.438 INCHES 1ST END
NOMINAL THICKNESS2.125 INCHES 2ND END
RAISED FACE NOMINAL DIAMETER6.188 INCHES 2ND END
RAISED FACE NOMINAL DIAMETER8.500 INCHES 1ST END
RAISED FACE NOMINAL HEIGHT0.062 INCHES 1ST END
RAISED FACE NOMINAL HEIGHT0.688 INCHES 2ND END
SECOND CONNECTION FACE TO CENTERLINE DISTANCE7.812 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE4.000 INCHES


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