4820-00-814-1957 VALVE,SAFETY RELIEF Index 4730-00-814-1963 INVERTED NUT,TUBE COUPLING

National Stock Number:
4820-00-814-1958

Federal Supply Class:
4820

National Item Identification Number:
008141958

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:
1970C16497DRESSER, INC.


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE AND
AISI 304/SAE 30304 ASSN STD SINGLE MATERIAL RESPONSE BODY
66 FED STD SINGLE MATERIAL RESPONSE AND
AISI 304/SAE 30304 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
AISI 304/SAE 30304 ASSN STD SINGLE MATERIAL RESPONSE SEAT
AISI 414/SAE 51414 ASSN STD SINGLE MATERIAL RESPONSE STEM
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP400.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE90.0 GALLONS PER MINUTE
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
THREADED INTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 1ST END
PLAIN,OPTIONAL END(PIPE) 2ND END
NOMINAL PIPE SIZE ACCOMMODATED1.500 INCHES 1ST END
1.000 INCHES 2ND END
THREAD SERIES DESIGNATORNPT 1ST END
NPT 2ND END
NOMINAL THREAD SIZE1.500 INCHES 1ST END
1.000 INCHES 2ND END
THREAD QUANTITY PER INCH11-1/2 1ST END
11-1/2 2ND END
THREAD DIRECTIONRIGHT-HAND 1ST END
RIGHT-HAND 2ND END
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODTHREADED
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING350.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE


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