Cast Steel Wafer Butterfly Valve
| Sizes | DN80 (3") to DN150 (6") |
|---|---|
| Connections | PN40 Flange as per BS EN 1092-1 |
| Maximum Working Pressure | 40bar (580psi) |
| Design Standards | Inspection & Test : API 598) End Flange Dimension : API 609 Face to Face Dimension : API 609 |
Butterfly valves are commonly used in fire protection systems as system control valves, sectional or pump water control valves. To reduce the risk of a water hammer Butterfly Valves are provided with a slow close hand wheel operation gearbox.
The valve is equipped with limit switch box to monitor open or closed position of the valve.
Material Specifications
| Part No. | Description | Gate |
| 1 | Bottom Cover | Carbon Steel |
| 2 | Bolts | Steel |
| 3 | Spring Washer | Steel |
| 4 | Gasket | Stainless Steel and Graphite |
| 5 | Bearing | |
| 6 | Body | Cast Steel |
| 7 | Disc | Stainless Steel |
| 8 | Seat ring | Stainless Steel and Graphite |
| 9 | Retaining ring | Austenitic Cr-Ni Stainless Steel |
| 10 | Bolt | Stainless Steel |
| 11 | Stem | Stainless Steel |
| 12 | Pin | Stainless Steel |
| 13 | Bearing | |
| 14 | Packing | Graphite |
| 15 | Packing Gland | Cast Steel |
| 16 | Nut | Stainless Steel |
| 17 | Spring Washer | Chrome Plated Carbon Steel |
| 18 | Stud | Steel |
| 19 | Yoke | Carbon Steel |
| 20 | Spring Washer | Carbon Steel |
| 21 | Bolts | Stainless Steel |
| 22 | Parallel Key | Carbon Steel |
| 23 | Gear |