4820-01-259-2210 VALVE,SAFETY RELIEF Index 4820-01-259-2212 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-259-2211

Federal Supply Class:
4820

National Item Identification Number:
012592211

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:
16977-F72352CURTISS-WRIGHT FLOW CONTROL CORPORATION
16977-F PART 26HB10-120 57T6272352CURTISS-WRIGHT FLOW CONTROL CORPORATION


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+57.0 TO 62.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER3.875 INCHES FIRST END
BOLT CIRCLE NOMINAL DIAMETER6.000 INCHES SECOND END
BOLT HOLE NOMINAL DIAMETER0.625 INCHES FIRST END
BOLT HOLE NOMINAL DIAMETER0.750 INCHES SECOND END
BOLT HOLE QUANTITY4 FIRST END
BOLT HOLE QUANTITY4 SECOND END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEINSIDE SPRING
CONNECTION TYPEFLANGE ALL ENDS
DISK LOADING METHODSPRING
FIRST CONNECTION FACE TO CENTERLINE DISTANCE4.875 INCHES
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICEDISK
MATERIALSTEEL BODY
MATERIALSTEEL COMP 316 PACKING
MATERIALSTEEL COMP 416 STEM
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT SECOND RESPONSE
MAXIMUM OPERATING TEMP75.0 FAHRENHEIT FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER7.500 INCHES SECOND END
NOMINAL OUTSIDE DIAMETER5.000 INCHES FIRST END
NOMINAL THICKNESS0.562 INCHES FIRST END
NOMINAL THICKNESS0.750 INCHES SECOND END
OPENING PRESSURE SETTING58.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
SPECIAL FEATURES1 PIPE PLUG (BODY) 1/2INCH NPT
RAISED FACE NOMINAL DIAMETER2.875 INCHES FIRST END
RAISED FACE NOMINAL DIAMETER5.000 INCHES SECOND END
RAISED FACE NOMINAL HEIGHT0.922 INCHES SECOND END
RAISED FACE NOMINAL HEIGHT0.688 INCHES FIRST END
SECOND CONNECTION FACE TO CENTERLINE DISTANCE5.125 INCHES
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE3.000 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS


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