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


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