4820-00-287-2639 VALVE,SAFETY RELIEF Index 2825-00-287-2647 DEFLECTOR,DIRT AND LIQUID

National Stock Number:
4820-00-287-2640

Federal Supply Class:
4820

National Item Identification Number:
002872640

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:
250114959CRANE CO DIV VALVE DIV
330427455380HATCH & KIRK, INC.
81125S41-21502ALT1PC353711NAVAL SEA SYSTEMS COMMAND
330427472915GENERAL MOTORS CORP ELECTRO-MOTIVE DIV
81125S41-21502ALT1PC380064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
COPPER ALLOY FLOW CONTROL DEVICE
STEEL STEM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE BODY
QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE STEM
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDSTEAM 1ST RESPONSE
WATER, FRESH 2ND RESPONSE
MAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP366.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE50.0 GALLONS PER MINUTE
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
THREADED EXTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 1ST END
PLAIN (PIPE) 2ND END
NOMINAL PIPE SIZE ACCOMMODATED1.500 INCHES 2ND END
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE1.500 INCHES ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODINTEGRAL
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE16.0 TO 30.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE


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