4820-01-270-4920 VALVE,GLOBE Index 4820-01-270-4922 VALVE,CHECK

National Stock Number:
4820-01-270-4921

Federal Supply Class:
4820

National Item Identification Number:
012704921

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:
249T-16BB-271207BRUNSWICK CORP DEFENSE DIV
249T-16BB-291816CIRCOR AEROSPACE, INC.


Techincal Specification:
MATERIALSTEEL CORROSION RESISTING BODY
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
STYLE DESIGNATORSTRAIGHT THRU
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
ACETYLENE 2ND RESPONSE
ALCOHOL, ETHYL 3RD RESPONSE
AMMONIA, GASEOUS 4TH RESPONSE
CARBON DIOXIDE 5TH RESPONSE
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP250.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHODAUTOMATIC
CONNECTION TYPETHREADED INTERNAL BOSS ALL ENDS
CONNECTION STYLEGASKET SEAL (BOSS) ALL ENDS
THREAD SERIES DESIGNATORUN ALL ENDS
NOMINAL THREAD SIZE1.312 INCHES ALL ENDS
THREAD QUANTITY PER INCH12 ALL ENDS
THREAD CLASS3B ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
MOUNTING POSITIONHORIZONTAL OR
VERTICAL
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING2.0 POUNDS PER SQUARE INCH
SPECIAL FEATURESCRACKING PRESSURE 2 PSI


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