4820-01-259-2209 VALVE,SAFETY RELIEF Index 4820-01-259-2211 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-259-2210

Federal Supply Class:
4820

National Item Identification Number:
012592210

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 1 1-2 H 372352CURTISS-WRIGHT FLOW CONTROL CORPORATION
26HB10L-12072352CURTISS-WRIGHT FLOW CONTROL CORPORATION


Techincal Specification:
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE OPERATION METHODAUTOMATIC
MATERIALSTEEL BODY
STEEL CORROSION RESISTING FLOW CONTROL DEVICE
STEEL COMP 316 PACKING
STEEL CORROSION RESISTING SEAT
STEEL CORROSION RESISTING STEM
FIRST CONNECTION FACE TO CENTERLINE DISTANCE4.875 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE5.125 INCHES
VALVE SIZE1.500 INCHES
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
MAXIMUM OPERATING TEMP75.0 DEG FAHRENHEIT 1ST RESPONSE
450.0 DEG FAHRENHEIT 2ND RESPONSE
CONNECTION TYPEFLANGE ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER5.000 INCHES ALL ENDS
NOMINAL THICKNESS0.562 INCHES ALL ENDS
BOLT HOLE QUANTITY4 ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.625 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER3.875 INCHES ALL ENDS
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
RAISED FACE NOMINAL HEIGHT0.688 INCHES ALL ENDS
RAISED FACE NOMINAL DIAMETER2.875 INCHES ALL ENDS
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODBOLTED
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING50.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE46.0 TO 50.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES1 PIPE PLUG (BODY) 1/2INCH NPT VENT


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