4820-01-189-0800 VALVE,CHECK Index 4820-01-189-0803 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-189-0801

Federal Supply Class:
4820

National Item Identification Number:
011890801

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:
249A-6TT-891816CIRCOR AEROSPACE, INC.
5676693B150RAYTHEON COMPANY
567669-13B150RAYTHEON COMPANY
567669-149956RAYTHEON COMPANY
56766949956RAYTHEON COMPANY
567669-154X10RAYTHEON COMPANY


Techincal Specification:
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALALUMINUM BODY
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDACETYLENE SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDALCOHOL, ETHYL THIRD RESPONSE
MEDIA FOR WHICH DESIGNEDAMMONIA, GASEOUS FOURTH RESPONSE
MEDIA FOR WHICH DESIGNEDCARBON DIOXIDE FIFTH RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL THREAD SIZE0.375 INCHES FIRST END
OPENING PRESSURE SETTING8.0 POUNDS PER SQUARE INCH
SEAT ANGLE37.0 DEGREES FIRST END
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A FIRST END
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
THREAD QUANTITY PER INCH18 FIRST END


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