4820-00-287-3139 VALVE,SAFETY RELIEF Index 4820-00-287-3148 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-287-3147

Federal Supply Class:
4820

National Item Identification Number:
002873147

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:
5VS2738056ASHCROFT INC


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER7.500 INCHES FIRST END
BOLT CIRCLE NOMINAL DIAMETER7.688 INCHES SECOND END
BOLT HOLE NOMINAL DIAMETER0.812 INCHES SECOND END
BOLT HOLE NOMINAL DIAMETER1.062 INCHES FIRST END
BOLT HOLE QUANTITY8 FIRST END
BOLT HOLE QUANTITY9 SECOND END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEEXPOSED SPRING
CONNECTION TYPEFLANGE SECOND END
CONNECTION TYPEFLANGE FIRST END
DISK LOADING METHODSPRING
FIRST CONNECTION FACE TO CENTERLINE DISTANCE7.000 INCHES
FLANGE FACE DESIGNPLAIN SECOND END
FLANGE FACE DESIGNRAISED STRAIGHT FIRST END
FLANGE SHAPEROUND WITH HOLES FIRST END
FLANGE SHAPEROUND WITH HOLES SECOND END
FLOW CONTROL DEVICEDISK
MATERIALCOPPER ALLOY BODY
MATERIALCOPPER ALLOY FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY SEAT
MATERIALCOPPER ALLOY STEM
NOMINAL OUTSIDE DIAMETER9.250 INCHES SECOND END
NOMINAL OUTSIDE DIAMETER9.625 INCHES FIRST END
NOMINAL THICKNESS0.938 INCHES SECOND END
NOMINAL THICKNESS1.625 INCHES FIRST END
OPENING PRESSURE SETTING1350.0 POUNDS PER SQUARE INCH
RAISED FACE NOMINAL DIAMETER6.375 INCHES FIRST END
RAISED FACE NOMINAL HEIGHT0.687 INCHES FIRST END
RENEWABLE SEAT RING TYPETHREADED
SECOND CONNECTION FACE TO CENTERLINE DISTANCE7.750 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE SIZE2.500 INCHES
VALVE DISCHARGE FLOW RATE49750.0 POUNDS PER HOUR


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