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National Stock Number:
4820-01-325-8251
Federal Supply Class:
4820
National Item Identification Number:
013258251
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.
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Manufacturer Information:
| 142 4IN | 79342 | WILLIAM E WILLIAMS VALVE CORP | | 7996 4IN | 79342 | WILLIAM E WILLIAMS VALVE CORP |
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Techincal Specification:
| BOLT HOLE QUANTITY | 8 | | BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | OUTSIDE SCREW-YOKE | | CONNECTION TYPE | FLANGE, ROUND W/HOLES | | FACE TO FACE DISTANCE | 9.000 INCHES | | FEATURES PROVIDED | BONNET PACKING | | FLANGE DIAMETER | 9.000 INCHES | | FLANGE FACE DESIGN | PLAIN | | INLET RELATIONSHIP WITH OUTLET | IDENTICAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B21 ASSN STD SINGLE MATERIAL RESPONSE STEM | | MATERIAL | COPPER ALLOY BODY | | MATERIAL | COPPER ALLOY DISK | | MATERIAL | COPPER ALLOY SEAT | | MATERIAL | COPPER ALLOY STEM | | MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED | 406.0 FAHRENHEIT STEAM AND 150.0 FAHRENHEIT WATER-OIL-GAS | | OPERATING PRESSURE AND TYPE | 150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 225.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED | | PRESSURE CLASS | 150.0 POUNDS | | VALVE OPERATION METHOD | MANUAL | | VALVE SIZE | 4.000 INCHES | | STEM TYPE | RISING |
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