4820-01-348-4264 VALVE,CHECK Index 4820-01-348-4266 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-348-4265

Federal Supply Class:
4820

National Item Identification Number:
013484265

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:
19-402-3572219AALBERTS INTEGRATED PIPING SYSTEMS AMERICAS, INC.
940-27410EXU3AQUA-CHEM, INC.
940-274112793AQUA-CHEM INC CLEAVER-BROOKS DIV


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
RUBBER FLUOROCARBON CLASS FPM SEAT
STEEL STEM
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP400.0 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 ALL ENDS
NOMINAL THREAD SIZE1.250 INCHES 1ST END
1.000 INCHES 2ND END
THREAD DIRECTIONRIGHT-HAND ALL ENDS
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODBOLTED
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING35.0 POUNDS PER SQUARE INCH


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