4820-00-989-1890 VALVE,GATE Index 3110-00-989-1892 BEARING,BALL,ANNULAR

National Stock Number:
4820-00-989-1891

Federal Supply Class:
4820

National Item Identification Number:
009891891

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:
3790664WALWORTH CO MARINE DIV
37-3IN63686THE WALWORTH COMPANY
B-135-3IN82666STOCKHAM VALVES AND FITTINGS INC


Techincal Specification:
BONNET TYPEINSIDE SCREW
BONNET ATTACHMENT METHODBOLTED
CONNECTION TYPETHREADED INTERNAL PIPE
FEATURES PROVIDEDBONNET PACKING
INLET RELATIONSHIP WITH OUTLETIDENTICAL
NOMINAL THREAD SIZE3.000 INCHES
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B150 ALLOY 1 ASSN STD SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B149 CL 11A ASSN STD SINGLE MATERIAL RESPONSE DISK
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIALCOPPER ALLOY DISK
MATERIALCOPPER ALLOY SEAT
MATERIALCOPPER ALLOY 694 STEM
MATERIALCOPPER ALLOY 922 BODY
MAXIMUM OPERATING PRESSURE AND MEDIA FOR WHICH DESIGNED200.0 POUNDS PER SQUARE INCH STEAM AND 400.0 POUNDS PER SQUARE INCH WATER-OIL-GAS
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED550.0 DEG FAHRENHEIT STEAM AND 150.0 DEG FAHRENHEIT WATER-OIL-GAS
PRESSURE CLASS200.0 POUNDS
THREAD SERIES DESIGNATORNPT
VALVE OPERATION METHODMANUAL
VALVE SIZE3.000 INCHES
STEM TYPERISING


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