4820-00-683-8721 VALVE,CHECK Index 4820-00-683-8723 VALVE,CHECK

National Stock Number:
4820-00-683-8722

Federal Supply Class:
4820

National Item Identification Number:
006838722

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:
2320B2PM91816CIRCOR AEROSPACE, INC.
2320B2PM491816CIRCOR AEROSPACE, INC.
2349B-2PM91816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL PIPE 2ND END
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
CONNECTION STYLEPLAIN (PIPE) 2ND END
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) 1ST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIALCOPPER ALLOY BODY
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
MAXIMUM OPERATING PRESSURE5000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP-40.0 FAHRENHEIT 1ST RESPONSE
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT 2ND RESPONSE
MEDIA FOR WHICH DESIGNEDACETYLENE 1ST RESPONSE
MEDIA FOR WHICH DESIGNEDAIR 2ND RESPONSE
MEDIA FOR WHICH DESIGNEDAMMONIA, LIQUID 4TH RESPONSE
MEDIA FOR WHICH DESIGNEDAMMONIA, GASEOUS 3RD RESPONSE
MEDIA FOR WHICH DESIGNEDCARBON DIOXIDE 5TH RESPONSE
MOUNTING POSITIONHORIZONTAL
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES 1ST END
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES 2ND END
NOMINAL THREAD SIZE0.250 INCHES 1ST END
NOMINAL THREAD SIZE0.250 INCHES 2ND END
SPECIAL FEATURESCRACKING PRESSURE 2 - 4 PSI
STYLE DESIGNATORSTRAIGHT THRU
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD DIRECTIONRIGHT-HAND 2ND END
THREAD SERIES DESIGNATORNPT 1ST END
THREAD SERIES DESIGNATORNPT 2ND END
THREAD QUANTITY PER INCH18 2ND END
VALVE OPERATION METHODAUTOMATIC


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