4820-01-250-4120 VALVE,CHECK Index 4820-01-250-4122 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-250-4121

Federal Supply Class:
4820

National Item Identification Number:
012504121

Description:
VALVE,CHECK

Detail:
A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.


Manufacturer Information:
174996948KEPNER PRODUCTS CO
33011833654HOWDEN FLUID SYSTEMS
330118P0133654HOWDEN FLUID SYSTEMS
330118P0158163MEGGITT (NORTH HOLLYWOOD), INC.


Techincal Specification:
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION STYLEPLAIN (TUBE) FIRST END
CONNECTION TYPEUNTHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPEUNTHREADED EXTERNAL PIPE SECOND END
FLOW CONTROL DEVICEPOPPET
MATERIALPLASTIC POLYPROPYLENE PACKING
MATERIALSTEEL COMP 303 BODY
MAXIMUM OPERATING TEMP131.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDETHYLENE GLYCOL FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDWATER, FRESH SECOND RESPONSE
MOUNTING POSITIONHORIZONTAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.172 INCHES FIRST END
NOMINAL PIPE SIZE ACCOMMODATED0.311 INCHES SECOND END
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
SPECIAL FEATURESMEDIA REQUIRES A MIXTURE OF 67PERCENT-ETHYLENE AND 33PERCENT-WATER BY VOLUME;CARTRIDGE TYPE
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU


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