4820-00-172-9122 VALVE,SAFETY RELIEF Index 4820-00-172-9124 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-172-9123

Federal Supply Class:
4820

National Item Identification Number:
001729123

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:
CVB41S5103-4580064NAVAL SHIP SYSTEMS COMMAND
R6134CQ16497DRESSER, INC.
R6134CQ38056ASHCROFT INC


Techincal Specification:
BOLT CIRCLE NOMINAL DIAMETER5.875 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER7.688 INCHES 1ST END
BOLT HOLE NOMINAL DIAMETER0.812 INCHES 1ST END
BOLT HOLE NOMINAL DIAMETER0.812 INCHES 2ND END
BOLT HOLE QUANTITY8 2ND END
BOLT HOLE QUANTITY9 1ST END
BONNET ATTACHMENT METHODBOLTED
BONNET TYPEEXPOSED SPRING
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLANGE FACE DESIGNPLAIN 2ND END
FLANGE FACE DESIGNRECESSED STRAIGHT 1ST END
FLANGE SHAPEROUND WITH HOLES 1ST END
FLANGE SHAPEROUND WITH HOLES 2ND END
FLOW CONTROL DEVICEDISK
NOMINAL OUTSIDE DIAMETER7.500 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER9.250 INCHES 1ST END
OPENING PRESSURE SETTING647.0 POUNDS PER SQUARE INCH
RECESS NOMINAL DEPTH0.325 INCHES 1ST END
RECESS NOMINAL DIAMETER4.500 INCHES 1ST END
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT
RENEWABLE SEAT RING TYPETHREADED
VALVE DISCHARGE FLOW RATE54100.0 POUNDS PER HOUR
VALVE OPERATION METHODAUTOMATIC OR MANUAL
VALVE SIZE2.500 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS


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