- Sluice Gates / Penstocks
- Channel Gates
- Tilting Weirs
- Stop Logs
- Hand Stops
- Diverter Gates
Vacuum Fluid & Power manufacture and supply penstocks for hydroelectric installations which are normally equipped with a gate system and a surge tank.
Flow is regulated by turbine operation and is nil when turbines are not in service.
Penstocks, particularly where used in polluted water systems, need to be maintained by hot water washing, manual cleaning, antifouling coatings, and desiccation.
They are commonly used in water management systems such as surface water drainage and foul water sewers. Penstocks provide a means of isolation of flows.
The term is also used in irrigation dams to refer to the channels leading to and from high-pressure sluice gates.
Penstocks are incorporated into the surface water management systems (drainage) of many landfill sites. Attenuation lagoons are constructed in order to store storm water, limiting the discharge from the site to pre-development rate (green field rate).
The Penstocks are installed at the outfall from the lagoon so that in the rare event that the surface water becomes contaminated the penstock may be closed.
This will have the effect of isolating the site from the watercourse, preventing contamination of the environment.
Penstocks are also used in mine tailings dam construction. The penstock is usually situated fairly close to the center of the tailings dam and built up using penstock rings. These control the water level, letting the slimes settle out of the water.
This water is then piped under the tailings dam back to the plant via a penstock pipeline.