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 CIRCLE NOMINAL DIAMETER9.500 INCHES SECOND END
BOLT CIRCLE NOMINAL DIAMETER10.625 INCHES FIRST END
BOLT HOLE NOMINAL DIAMETER0.875 INCHES FIRST END
BOLT HOLE NOMINAL DIAMETER1.375 INCHES SECOND END
BOLT HOLE QUANTITY12 FIRST END
BOLT HOLE QUANTITY8 SECOND END
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODUNION
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
OPERATING PRESSURE1650.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALSTEEL BODY
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING STEM
MAXIMUM OPERATING TEMP800.0 FAHRENHEIT SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER12.500 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER12.250 INCHES SECOND END
NOMINAL THICKNESS1.438 INCHES FIRST END
NOMINAL THICKNESS2.125 INCHES SECOND END
RAISED FACE NOMINAL DIAMETER6.188 INCHES SECOND END
RAISED FACE NOMINAL DIAMETER8.500 INCHES FIRST END
RAISED FACE NOMINAL HEIGHT0.062 INCHES FIRST END
RAISED FACE NOMINAL HEIGHT0.688 INCHES SECOND END
SECOND CONNECTION FACE TO CENTERLINE DISTANCE7.812 INCHES
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE4.000 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS


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