4820-01-259-5785 VALVE,CHECK Index 4820-01-259-5787 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-259-5786

Federal Supply Class:
4820

National Item Identification Number:
012595786

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:
1811GA-0-3X1-2016497DRESSER, INC.
314953 SER.N0.8V0925316497DRESSER, INC.


Techincal Specification:
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE OPERATION METHODAUTOMATIC
MATERIALSTEEL BODY
VALVE SIZE1.250 INCHES
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
STEAM 2ND RESPONSE
MAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CONNECTION TYPEFLANGE ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER1.500 INCHES 1ST END
1.250 INCHES 2ND END
BOLT HOLE QUANTITY4 ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.625 INCHES ALL ENDS
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
RAISED FACE NOMINAL HEIGHT0.062 INCHES ALL ENDS
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE4.0 TO 309.0 POUNDS PER SQUARE INCH


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