Penstock Protection / Turbine Inlet Butterfly Valve
These specialized Butterfly valves are installed to protect hydro-electric installations against the possibility of penstock rupture. Valves are designed to close against turbine runaway during an emergency condition. These valves act as isolating devices for inspection of penstock without dewatering entire head race tunnel. Yet another important application is for large water supply schemes fed from reservoirs through long pipelines, failure of which can cause disastrous floods. Valves, by virtue of their design and robust construction, close down automatically and instantaneously in the event of the downstream pipeline failure. These valves close during over velocity condition occurring due to turbine trip or runaway condition. Further, these special design Butterfly Valves can also be used for turbine inlet application instead of Spherical Valves.
Butterfly valves of the pen-stock
Valve Type: Lattice Type Butterfly
Nominal Diameter: 4000 mm
Rated Flow: 80.05 m³/sec
Internal Design Pressure: 1.35 Mpa
Weight of Valve: 60-65 MT/ Transported in Parts
We can provide you turn-key project and welcome to contact us for more info.
These specialized Butterfly valves are installed to protect hydro-electric installations against the possibility of penstock rupture. Valves are designed to close against turbine runaway during an emergency condition. These valves act as isolating devices for inspection of penstock without dewatering entire head race tunnel. Yet another important application is for large water supply schemes fed from reservoirs through long pipelines, failure of which can cause disastrous floods. Valves, by virtue of their design and robust construction, close down automatically and instantaneously in the event of the downstream pipeline failure. These valves close during over velocity condition occurring due to turbine trip or runaway condition. Further, these special design Butterfly Valves can also be used for turbine inlet application instead of Spherical Valves.
| SL.NO. | DESCRIPTION | MATERIAL USED |
| a | BODY | FABRICATED CARBON STEEL (IS 2062 Gr.B) |
| b | DISC | FABRICATED CARBON STEEL (IS 2062 Gr.B) |
| c | SHAFT | ST. STEEL(BS970 431 S29) |
| d | SEAT/ CLAMPING RING | ST. STEEL (ASTM A 479 TYPE 304/A351 TYPE CF8) |
| e | BEARING | ST.STEEL BACKED PTFE |
| f | SEAL | NITRILE RUBBER |
Butterfly valves of the pen-stock
Valve Type: Lattice Type Butterfly
Nominal Diameter: 4000 mm
Rated Flow: 80.05 m³/sec
Internal Design Pressure: 1.35 Mpa
Weight of Valve: 60-65 MT/ Transported in Parts
We can provide you turn-key project and welcome to contact us for more info.