4820-01-219-6517 VALVE,CHECK Index 4820-01-219-6519 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-219-6518

Federal Supply Class:
4820

National Item Identification Number:
012196518

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:
1900K16497DRESSER, INC.
1900K REV 4 AND B/M 900060116497DRESSER, INC.
1905K116497DRESSER, INC.
1905KC 165T187P16497DRESSER, INC.
1905KC-116497DRESSER, INC.


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER6.000 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER7.500 INCHES 1ST END
BOLT HOLE NOMINAL DIAMETER0.625 INCHES ALL ENDS
BOLT HOLE QUANTITY4 2ND END
BOLT HOLE QUANTITY8 1ST END
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODBOLTED
CONNECTION TYPEFLANGE ALL ENDS
DISK LOADING METHODSPRING
FIRST CONNECTION FACE TO CENTERLINE DISTANCE6.375 INCHES
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICEDISK
MATERIAL DOCUMENT AND CLASSIFICATIONASME SA216 GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 TYPE 416 COND A ASSN STD SINGLE MATERIAL RESPONSE STEM
MATERIALSTEEL BODY
MATERIALSTEEL CORROSION RESISTING STEM
MAXIMUM OPERATING PRESSURE285.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER7.500 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER9.000 INCHES 1ST END
NOMINAL THICKNESS0.750 INCHES 2ND END
NOMINAL THICKNESS0.938 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER5.000 INCHES 2ND END
RAISED FACE NOMINAL DIAMETER6.188 INCHES 1ST END
SECOND CONNECTION FACE TO CENTERLINE DISTANCE6.125 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE4.000 INCHES


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