4820-00-289-3868 VALVE,SAFETY RELIEF Index 4820-00-289-3874 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-289-3871

Federal Supply Class:
4820

National Item Identification Number:
002893871

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:
19J140PC1T052-50P0UND11660WESTINGHOUSE ELECTRIC CORP CONTROL BUSINESS UNIT
19J140PC1T052-50P0UND79500WESTINGHOUSE ELECTRIC CORP
19J600-2811660WESTINGHOUSE ELECTRIC CORP CONTROL BUSINESS UNIT
19J64811660WESTINGHOUSE ELECTRIC CORP CONTROL BUSINESS UNIT
19J64879500WESTINGHOUSE ELECTRIC CORP
19J600-2879500WESTINGHOUSE ELECTRIC CORP
20J64-8811660WESTINGHOUSE ELECTRIC CORP CONTROL BUSINESS UNIT
20J174PC1T05211660WESTINGHOUSE ELECTRIC CORP CONTROL BUSINESS UNIT
20J174PC1T05279500WESTINGHOUSE ELECTRIC CORP
20J64-8879500WESTINGHOUSE ELECTRIC CORP
BB58S41-10PC2880064NAVAL SHIP SYSTEMS COMMAND
BB58S41-18880064NAVAL SHIP SYSTEMS COMMAND
CL119S4101-261471PC1T05280064NAVAL SHIP SYSTEMS COMMAND
CL51S41-160PC1T05280064NAVAL SHIP SYSTEMS COMMAND
CL51S41-189PC8880064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE+31.0/+60.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER3.375 INCHES 1ST END
BOLT HOLE NOMINAL DIAMETER0.562 INCHES 1ST END
BOLT HOLE QUANTITY4 1ST END
BONNET TYPEEXPOSED SPRING
BONNET ATTACHMENT METHODBOLTED
CONNECTION TYPEFLANGE 1ST END
FIRST CONNECTION FACE TO CENTERLINE DISTANCE4.375 INCHES
FLANGE FACE DESIGNPLAIN 1ST END
FLANGE SHAPEROUND WITH HOLES 1ST END
FLOW CONTROL DEVICEDISK
NOMINAL OUTSIDE DIAMETER4.500 INCHES 1ST END
NOMINAL THICKNESS0.500 INCHES 1ST END
NONDEFINITIVE SPEC/STD DATA1 TYPE AND D COMPOSITION
MATERIALSTEEL BODY
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING SEAT
MATERIALSTEEL CORROSION RESISTING STEM
MAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP650.0 DEG FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
RENEWABLE SEAT RING TYPETHREADED
SECOND CONNECTION FACE TO CENTERLINE DISTANCE4.375 INCHES
STYLE DESIGNATORANGLE FLANGED ENDS


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