4820-01-307-9306 VALVE,CHECK Index 4820-01-307-9308 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-307-9307

Federal Supply Class:
4820

National Item Identification Number:
013079307

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:
2677A8TT91816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION STYLEFLARED (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
FLOW CONTROL DEVICEPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALALUMINUM ALLOY 2024 BODY
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
MAXIMUM OPERATING TEMP275.0 FAHRENHEIT SECOND RESPONSE
MAXIMUM OPERATING TEMP-65.0 FAHRENHEIT FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDAMMONIA, LIQUID SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDHELIUM THIRD RESPONSE
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, MINERAL BASE FIFTH RESPONSE
MEDIA FOR WHICH DESIGNEDHYDROGEN FOURTH RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS
OPENING PRESSURE SETTING2.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
SEAT ANGLE37.0 DEGREES ALL ENDS
SPECIAL FEATURESOTHER MEDIA UTILIZED: ALCOHOL,LUBE OIL,NITROGEN,WATER
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS


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