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:
MATERIALCOPPER ALLOY BODY
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
STYLE DESIGNATORSTRAIGHT THRU
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDACETYLENE 1ST RESPONSE
AIR 2ND RESPONSE
AMMONIA, GASEOUS 3RD RESPONSE
AMMONIA, LIQUID 4TH RESPONSE
CARBON DIOXIDE 5TH RESPONSE
MAXIMUM OPERATING PRESSURE5000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP-40.0 DEG FAHRENHEIT 1ST RESPONSE
250.0 DEG FAHRENHEIT 2ND RESPONSE
VALVE OPERATION METHODAUTOMATIC
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
THREADED EXTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) 1ST END
PLAIN (PIPE) 2ND END
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES 1ST END
0.250 INCHES 2ND END
THREAD SERIES DESIGNATORNPT 1ST END
NPT 2ND END
NOMINAL THREAD SIZE0.250 INCHES 1ST END
0.250 INCHES 2ND END
THREAD QUANTITY PER INCH18 2ND END
THREAD DIRECTIONRIGHT-HAND 1ST END
RIGHT-HAND 2ND END
MOUNTING POSITIONHORIZONTAL
DISK LOADING METHODSPRING
SPECIAL FEATURESCRACKING PRESSURE 2 - 4 PSI
THE MANUFACTURERS DATA
MANUFACTURERS CODE91816
DESIGN CONTROL REFERENCE2349B-2PM


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