4820-01-313-4126 VALVE,CHECK Index 4820-01-313-4128 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-313-4127

Federal Supply Class:
4820

National Item Identification Number:
013134127

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:
B-8C4-1/318034NUPRO CO
B-8C4-C1-1/302570SWAGELOK CO
B-8C4-C1-1/318034NUPRO CO
B-8C4-C1-1/33T9T9SWAGELOK CO


Techincal Specification:
MATERIALCOPPER ALLOY BODY
COPPER ALLOY FLOW CONTROL DEVICE
STYLE DESIGNATORSTRAIGHT THRU
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDGAS, NATURAL 1ST RESPONSE
LIQUID 2ND RESPONSE
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP300.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHODAUTOMATIC
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
MOUNTING POSITIONHORIZONTAL
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING0.3 POUNDS PER SQUARE INCH
SPECIAL FEATURESFOR NAVY NUCLEAR PROPULSION PLANT PRODUCTS ONLY;FREE FROM MERCURY CONTAMINATION


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