4730-00-220-1849 COUPLING HALF,QUICK DISCONNECT Index 4820-00-220-1851 PARTS KIT,PRESSURE REGULATING VA

National Stock Number:
4820-00-220-1850

Federal Supply Class:
4820

National Item Identification Number:
002201850

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:
CL55S51-9880064NAVAL SHIP SYSTEMS COMMAND
R6181AZ16497DRESSER, INC.
R6181AZ38056ASHCROFT INC


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+580.0 TO 630.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER5.000 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER5.188 INCHES 2ND END
BOLT HOLE NOMINAL DIAMETER0.688 INCHES 1ST END
BOLT HOLE NOMINAL DIAMETER0.688 INCHES 2ND END
BOLT HOLE QUANTITY7 2ND END
BOLT HOLE QUANTITY8 1ST END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEEXPOSED SPRING
CONNECTION TYPEFLANGE 2ND END
CONNECTION TYPEFLANGE 1ST END
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLANGE FACE DESIGNPLAIN 2ND END
FLANGE FACE DESIGNRAISED STRAIGHT 1ST END
FLANGE SHAPEROUND WITH HOLES 1ST END
FLANGE SHAPEROUND WITH HOLES 2ND END
FLOW CONTROL DEVICEDISK
NOMINAL OUTSIDE DIAMETER6.500 INCHES 1ST END
NOMINAL OUTSIDE DIAMETER6.500 INCHES 2ND END
NOMINAL THICKNESS0.750 INCHES 2ND END
NOMINAL THICKNESS1.000 INCHES 1ST END
OPENING PRESSURE SETTING624.0 POUNDS PER SQUARE INCH
RAISED FACE NOMINAL DIAMETER3.625 INCHES 1ST END
RAISED FACE NOMINAL HEIGHT0.250 INCHES 1ST END
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT
RENEWABLE SEAT RING TYPETHREADED
STYLE DESIGNATORANGLE
VALVE DISCHARGE FLOW RATE13000.0 POUNDS PER HOUR


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