4820-01-421-8820 VALVE,BUTTERFLY Index 4820-01-421-8822 VALVE,BALL

National Stock Number:
4820-01-421-8821

Federal Supply Class:
4820

National Item Identification Number:
014218821

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:
L-3110-B 11-17 PSI15187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
L-3110-B 11-17PSI75954KUNKLE INDUSTRIES INC LONERGAN VALVE DIV
NMP0802F01S01115187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
NMP802 11-17PSI75954KUNKLE INDUSTRIES INC LONERGAN VALVE DIV


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+11.0 TO 17.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER2.375 INCHES ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.625 INCHES ALL ENDS
BOLT HOLE QUANTITY4 ALL ENDS
BONNET ATTACHMENT METHODINTEGRAL
BONNET TYPEINSIDE SPRING
CONNECTION TYPEFLANGE ALL ENDS
DISK LOADING METHODSPRING
FURNISHED ITEMS AND QUANTITY1 CAP
FIRST CONNECTION FACE TO CENTERLINE DISTANCE2.125 INCHES
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY STEM
MATERIALSTEEL BODY
MATERIALSTEEL CORROSION RESISTING SEAT
MAXIMUM OPERATING TEMP300.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER3.500 INCHES ALL ENDS
NOMINAL THICKNESS0.375 INCHES ALL ENDS
RAISED FACE NOMINAL DIAMETER1.375 INCHES ALL ENDS
RAISED FACE NOMINAL HEIGHT0.062 INCHES ALL ENDS
SECOND CONNECTION FACE TO CENTERLINE DISTANCE2.125 INCHES
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE0.500 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS


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