4820-00-402-7318 VALVE,SAFETY RELIEF Index 4820-00-402-7321 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-402-7320

Federal Supply Class:
4820

National Item Identification Number:
004027320

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:
5VKE7238056ASHCROFT INC
S5103H321075180064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER7.688 INCHES SECOND END
BOLT CIRCLE NOMINAL DIAMETER7.750 INCHES FIRST END
BOLT HOLE NOMINAL DIAMETER0.812 INCHES SECOND END
BOLT HOLE NOMINAL DIAMETER1.188 INCHES FIRST END
BOLT HOLE QUANTITY8 FIRST END
BOLT HOLE QUANTITY9 SECOND END
BONNET TYPEPACKING RETAINING
CONNECTION TYPEFLANGE SECOND END
CONNECTION TYPEFLANGE FIRST END
DISK LOADING METHODWEIGHT
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
MATERIALSTEEL BODY
MATERIALSTEEL FLOW CONTROL DEVICE
MATERIALSTEEL SEAT
NOMINAL OUTSIDE DIAMETER9.250 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER9.250 INCHES SECOND END
NOMINAL THICKNESS0.938 INCHES SECOND END
NOMINAL THICKNESS1.063 INCHES THIRD END
OPENING PRESSURE SETTING1375.0 POUNDS PER SQUARE INCH
RAISED FACE NOMINAL DIAMETER4.125 INCHES FIRST END
RAISED FACE NOMINAL HEIGHT0.250 INCHES FIRST END
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT
RENEWABLE SEAT RING TYPETHREADED OR WELDED
STYLE DESIGNATORANGLE
VALVE OPERATION METHODMANUAL OR AIR
VALVE DISCHARGE FLOW RATE65000.0 POUNDS PER HOUR


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