4820-01-332-6808 VALVE,SAFETY RELIEF Index 4820-01-332-6810 VALVE,BUTTERFLY

National Stock Number:
4820-01-332-6809

Federal Supply Class:
4820

National Item Identification Number:
013326809

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:
26DA16-140/S4/SP1.50X2.502000P72352CURTISS-WRIGHT FLOW CONTROL CORPORATION


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER4.500 INCHES SECOND END
BOLT CIRCLE NOMINAL DIAMETER7.750 INCHES FIRST END
BOLT HOLE NOMINAL DIAMETER0.875 INCHES SECOND END
BOLT HOLE NOMINAL DIAMETER1.250 INCHES FIRST END
BOLT HOLE QUANTITY4 SECOND END
BOLT HOLE QUANTITY8 FIRST END
BONNET ATTACHMENT METHODINTEGRAL
BONNET TYPEINSIDE SPRING
CONNECTION TYPEFLANGE ALL ENDS
DISK LOADING METHODSPRING
FIRST CONNECTION FACE TO CENTERLINE DISTANCE6.500 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 SEAT
MATERIALSTEEL CORROSION RESISTING STEM
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDWATER, FRESH THIRD RESPONSE
NOMINAL OUTSIDE DIAMETER10.500 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER6.125 INCHES SECOND END
NOMINAL THICKNESS0.812 INCHES SECOND END
NOMINAL THICKNESS2.250 INCHES FIRST END
OPENING PRESSURE SETTING2000.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
RAISED FACE NOMINAL DIAMETER2.875 INCHES SECOND END
RAISED FACE NOMINAL DIAMETER4.125 INCHES FIRST END
RAISED FACE NOMINAL HEIGHT0.250 INCHES FIRST END
RAISED FACE NOMINAL HEIGHT0.688 INCHES SECOND END
RENEWABLE SEAT RING TYPETHREADED
SECOND CONNECTION FACE TO CENTERLINE DISTANCE5.500 INCHES
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE1.500 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS


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