1560-01-437-4801 COVER,ACCESS,AIRCRAFT Index 4820-01-437-4803 STEM,FLUID VALVE

National Stock Number:
4820-01-437-4802

Federal Supply Class:
4820

National Item Identification Number:
014374802

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:
20381 ASSY 2038115187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
20381 ASSY 2038101E005501343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
2038101E005501343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
2038101E005515187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER2.375 INCHES ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.625 INCHES ALL ENDS
BOLT HOLE QUANTITY4 ALL ENDS
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEINSIDE SPRING
CONNECTION TYPEFLANGE ALL ENDS
DISK LOADING METHODSPRING
FURNISHED ITEMS AND QUANTITY4 NUT
FIRST CONNECTION FACE TO CENTERLINE DISTANCE1.670 INCHES
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICEDISK
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE PACKING
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING SEAT
MATERIALSTEEL CORROSION RESISTING STEM
MATERIALSTEEL UNS J03002 BODY
MAXIMUM OPERATING TEMP100.0 FAHRENHEIT SINGLE RESPONSE
MOUNTING FACILITYBRACKET(S)
NOMINAL OUTSIDE DIAMETER3.500 INCHES ALL ENDS
NOMINAL THICKNESS0.375 INCHES ALL ENDS
OPENING PRESSURE SETTING55.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE285.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
SPECIAL FEATURES2771
RAISED FACE NOMINAL DIAMETER1.375 INCHES ALL ENDS
RAISED FACE NOMINAL HEIGHT0.062 INCHES ALL ENDS
SECOND CONNECTION FACE TO CENTERLINE DISTANCE1.670 INCHES
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE0.500 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS


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