4820-00-288-6885 VALVE,SAFETY RELIEF Index 4820-00-288-6887 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-288-6886

Federal Supply Class:
4820

National Item Identification Number:
002886886

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:
R6181BH16497DRESSER, INC.


Techincal Specification:
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE OPERATION METHODAIR
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
STEEL CORROSION RESISTING SEAT
STEEL CORROSION RESISTING STEM
FIRST CONNECTION FACE TO CENTERLINE DISTANCE5.500 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE5.062 INCHES
VALVE SIZE2.625 INCHES
FLOW CONTROL DEVICEPOPPET
POWER DRIVE OPERATING PRESSURE634.0 POUNDS PER SQUARE INCH NOMINAL
CONNECTION TYPEFLANGE 1ST END
FLANGE 2ND END
FLANGE SHAPEROUND 2ND END
NOMINAL OUTSIDE DIAMETER6.500 INCHES 1ST END
7.562 INCHES 2ND END
NOMINAL THICKNESS1.000 INCHES 1ST END
0.812 INCHES 2ND END
BOLT HOLE QUANTITY8 1ST END
4 2ND END
BOLT HOLE NOMINAL DIAMETER0.687 INCHES 1ST END
0.562 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER5.000 INCHES 1ST END
2.625 INCHES 2ND END
FLANGE FACE DESIGNRAISED STRAIGHT 1ST END
PLAIN 2ND END
RAISED FACE NOMINAL HEIGHT0.250 INCHES 1ST END
0.250 INCHES 2ND END
RAISED FACE NOMINAL DIAMETER4.250 INCHES 1ST END
1.375 INCHES 2ND END
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODBOLTED
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSRIGHT HAND VALVE
THE MANUFACTURERS DATA
MANUFACTURERS CODE16497
DESIGN CONTROL REFERENCER6181BH


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