4820-00-640-0449 VALVE,CHECK Index 4820-00-640-0457 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-640-0452

Federal Supply Class:
4820

National Item Identification Number:
006400452

Description:
VALVE,GATE

Detail:
A valve having a flat or tapered disk (gate) which moves transversely to the axis of flow by rotating or sliding movements of the stem to open or close the orifice. It may also contain an oval or rectangular shaped slide which may be manually, motor, or pressure operated through the means of an arm or arm assembly. The body flange may be designed to accommodate tube type connectors. It may or may not contain thermal relief features. Includes valve (gate) specifically designed for the control of fluid systems in aircraft or missiles.


Manufacturer Information:
44214959CRANE CO DIV VALVE DIV


Techincal Specification:
BONNET ATTACHMENT METHODTHREADED
BONNET TYPEINSIDE SCREW
CONNECTION TYPETHREADED INTERNAL PIPE
FEATURES PROVIDEDBONNET PACKING
NOMINAL THREAD SIZE0.750 INCHES
MATERIALCOPPER ALLOY BODY
MATERIALCOPPER ALLOY DISK
MATERIALCOPPER ALLOY SEAT
MATERIALCOPPER ALLOY STEM
MAXIMUM OPERATING PRESSURE AND MEDIA FOR WHICH DESIGNED125.0 POUNDS PER SQUARE INCH STEAM AND 200.0 POUNDS PER SQUARE INCH WATER-OIL-GAS
SPECIAL FEATURES0.750 IN. PIPE SIZE;R.H. THD;14 THDS PER INCH
THREAD SERIES DESIGNATORNPT
VALVE OPERATION METHODMANUAL
STEM TYPERISING


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