4820-01-305-2014 VALVE,SAFETY RELIEF Index 4820-01-305-2016 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-305-2015

Federal Supply Class:
4820

National Item Identification Number:
013052015

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:
147116497DRESSER, INC.
1471 3/4IN SET 175PSI16497DRESSER, INC.


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALBRONZE BODY
COPPER ALLOY SEAT
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP450.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE 1ST END
THREADED INTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN (PIPE) 1ST END
PLAIN,OPTIONAL END(PIPE) 2ND END
THREAD SERIES DESIGNATORNPT 1ST END
NPT 2ND END
NOMINAL THREAD SIZE0.750 INCHES 1ST END
0.750 INCHES 2ND END
THREAD DIRECTIONRIGHT-HAND 1ST END
RIGHT-HAND 2ND END
BONNET TYPEINSIDE SCREW
BONNET ATTACHMENT METHODTHREADED
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING175.0 POUNDS PER SQUARE INCH


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