4820-00-288-6924 VALVE,SAFETY RELIEF Index 4820-00-288-6926 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-288-6925

Federal Supply Class:
4820

National Item Identification Number:
002886925

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:
A3414715187EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
H317676180064NAVAL SHIP SYSTEMS COMMAND
H3176761REVD80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALSTEEL BODY
NICKEL ALLOY FLOW CONTROL DEVICE
NICKEL ALLOY SEAT
NICKEL ALLOY STEM
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP750.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE90209.0 POUNDS PER HOUR
CONNECTION TYPEFLANGE 1ST END
FLANGE 2ND END
FLANGE SHAPEROUND WITH HOLES 1ST END
ROUND WITH HOLES 2ND END
NOMINAL OUTSIDE DIAMETER7.500 INCHES 1ST END
8.688 INCHES 2ND END
NOMINAL THICKNESS1.125 INCHES 1ST END
0.875 INCHES 2ND END
BOLT HOLE QUANTITY8 1ST END
9 2ND END
BOLT HOLE NOMINAL DIAMETER0.812 INCHES 1ST END
0.812 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER5.875 INCHES 1ST END
7.125 INCHES 2ND END
FLANGE FACE DESIGNRAISED STRAIGHT 1ST END
PLAIN 2ND END
RAISED FACE NOMINAL HEIGHT0.500 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER0.500 INCHES 1ST END
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODBOLTED
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE641.0 TO 700.0 POUNDS PER SQUARE INCH


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