4820-00-202-8260 VALVE,SAFETY RELIEF Index 4820-00-202-8263 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-202-8261

Federal Supply Class:
4820

National Item Identification Number:
002028261

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:
NMP414MDL-LL3120A01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
NMP414MDL-LL3120A15187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
NMP414MDL-LL3120A75954KUNKLE INDUSTRIES INC LONERGAN VALVE DIV


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+678.0 TO 820.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER2.437 INCHES SECOND END
BOLT CIRCLE NOMINAL DIAMETER2.625 INCHES FIRST END
BOLT HOLE NOMINAL DIAMETER0.562 INCHES ALL ENDS
BOLT HOLE QUANTITY3 SECOND END
BOLT HOLE QUANTITY4 FIRST END
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODUNION
CONNECTION TYPEFLANGE ALL ENDS
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FIRST CONNECTION FACE TO CENTERLINE DISTANCE3.250 INCHES
FLANGE FACE DESIGNPLAIN SECOND END
FLANGE FACE DESIGNRAISED STRAIGHT FIRST END
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-15083 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-867 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALSTEEL BODY
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING SEAT
MATERIALSTEEL CORROSION RESISTING STEM
MAXIMUM OPERATING TEMP650.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
MOUNTING FACILITYBRACKET(S)
NOMINAL OUTSIDE DIAMETER3.562 INCHES SECOND END
NOMINAL OUTSIDE DIAMETER3.750 INCHES FIRST END
NOMINAL THICKNESS0.375 INCHES SECOND END
NOMINAL THICKNESS0.562 INCHES FIRST END
RAISED FACE NOMINAL DIAMETER2.000 INCHES FIRST END
RAISED FACE NOMINAL HEIGHT0.250 INCHES FIRST END
SECOND CONNECTION FACE TO CENTERLINE DISTANCE3.125 INCHES
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE0.500 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS


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