Part Details | GATE VALVE
4820-00-989-1891 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.
Alternate Parts: B1353IN, B-135-3IN, 373IN, 37-3IN, 37, 4820-00-989-1891, 00-989-1891, 4820009891891, 009891891
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JAN 01, 1962 | 00-989-1891 | 05482 ( VALVE, GATE ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 4820-00-989-1891
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| B-135-3IN | 82666 | STOCKHAM VALVES AND FITTINGS INC |
| 37-3IN | 63686 | THE WALWORTH COMPANY |
| 37 | 90664 | WALWORTH COMARINE DIV |
Technical Data | NSN 4820-00-989-1891
| Characteristic | Specifications |
|---|---|
| VALVE SIZE | 3.000 INCHES |
| PRESSURE CLASS | 200.0 POUNDS |
| MAXIMUM OPERATING PRESSURE AND MEDIA FOR WHICH DESIGNED | 200.0 POUNDS PER SQUARE INCH STEAM AND 400.0 POUNDS PER SQUARE INCH WATER-OIL-GAS |
| MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED | 550.0 DEG FAHRENHEIT STEAM AND 150.0 DEG FAHRENHEIT WATER-OIL-GAS |
| VALVE OPERATION METHOD | MANUAL |
| INLET RELATIONSHIP WITH OUTLET | IDENTICAL |
| CONNECTION TYPE | THREADED INTERNAL PIPE |
| THREAD SERIES DESIGNATOR | NPT |
| NOMINAL THREAD SIZE | 3.000 INCHES |
| STEM TYPE | RISING |
| BONNET TYPE | INSIDE SCREW |
| BONNET ATTACHMENT METHOD | BOLTED |
| FEATURES PROVIDED | BONNET PACKING |