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:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODMANUAL OR
AIR
MATERIALSTEEL BODY
STEEL FLOW CONTROL DEVICE
STEEL SEAT
FLOW CONTROL DEVICEDISK
VALVE DISCHARGE FLOW RATE65000.0 POUNDS PER HOUR
CONNECTION TYPEFLANGE 1ST END
FLANGE 2ND END
FLANGE SHAPEROUND WITH HOLES 1ST END
ROUND WITH HOLES 2ND END
NOMINAL OUTSIDE DIAMETER9.250 INCHES 1ST END
9.250 INCHES 2ND END
NOMINAL THICKNESS0.938 INCHES 2ND END
1.063 INCHES 3RD END
BOLT HOLE QUANTITY8 1ST END
9 2ND END
BOLT HOLE NOMINAL DIAMETER1.188 INCHES 1ST END
0.812 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER7.750 INCHES 1ST END
7.688 INCHES 2ND END
FLANGE FACE DESIGNRAISED STRAIGHT 1ST END
PLAIN 2ND END
RAISED FACE NOMINAL HEIGHT0.250 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER4.125 INCHES 1ST END
RENEWABLE SEAT RING TYPETHREADED OR
WELDED
BONNET TYPEPACKING RETAINING
DISK LOADING METHODWEIGHT
OPENING PRESSURE SETTING1375.0 POUNDS PER SQUARE INCH
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT
THE MANUFACTURERS DATA
MANUFACTURERS CODE38056
DESIGN CONTROL REFERENCE5VKE72


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