4820-01-434-6660 VALVE,SAFETY RELIEF Index 4820-01-434-6662 RETAINER,DISK,VALVE

National Stock Number:
4820-01-434-6661

Federal Supply Class:
4820

National Item Identification Number:
014346661

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:
4N6JOS-15-C 74T79PSI15187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
6142800015187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
61428000E15187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
DS-G-63177-415187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
DS-G-63177-4 ASSY 6142800015187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+74.0 TO 79.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER7.500 INCHES SECOND END
BOLT CIRCLE NOMINAL DIAMETER9.500 INCHES FIRST END
BOLT HOLE NOMINAL DIAMETER0.750 INCHES SECOND END
BOLT HOLE NOMINAL DIAMETER0.875 INCHES FIRST END
BOLT HOLE QUANTITY8 ALL ENDS
CONNECTION TYPEFLANGE ALL ENDS
DISK LOADING METHODSPRING
FIRST CONNECTION FACE TO CENTERLINE DISTANCE8.500 INCHES
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE185.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALSTEEL BODY
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING SEAT
MATERIALSTEEL CORROSION RESISTING STEM
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER11.000 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER9.000 INCHES SECOND END
NOMINAL THICKNESS1.000 INCHES FIRST END
NOMINAL THICKNESS0.938 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 ALL ENDS
SECOND CONNECTION FACE TO CENTERLINE DISTANCE7.500 INCHES
SPECIAL FEATURESINCL REGULAR LIFTING LEVER; FOR VALVE SZ 4.000 IN. BY 6.000 IN.
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE6.000 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS


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