Expertise in hydropower with technical reliability
Voith has earned a worldwide reputation as reliable pump manufacturer, evidenced by about 560 pump applications installed in 187 stations around the world with a total power consumption of about 7 200 MW. With great commitment and dedication, we seek to offer best fit solutions leading to high effectiveness and reliability of entire pumping stations.
Our competences and capabilities
Our pumps are characterized by compact arrangement and robust design. Due to sophisticated hydraulic shapes, our pumps reach high efficiency levels. They are easy to maintain, and standardized motors and gear units can be used as drives. By arranging pumps in different ways, we assure an optimum integration into new and existing buildings. We use different materials in order to ensure suitability for diverse water qualities. Thus, by using adequate materials and technologies, we produce highly qualitative pumps.
Voith offers customized pumps to meet any need for:
- Pumped storage
- Waste water
- Cooling water
- Drinking water
- Irrigation and drainage
- Desalination
- Flood control
Pumps from Voith – our technology
Axial-flow pumps
Pump total head: Up to about 15 m
Type of construction: Propeller pumps with fixed impeller blades and fixed guide vanes. Kaplan pumps with adjustable impeller blades and fixed guide vanes
Application: Pumps for drainage and irrigation plants, flood control, storm water, (drinking) water supply, waste water pumps, storage pumps, cooling water pumps
Mixed-flow pumps
Pump total head: Up to about 60 m
Type of construction: Fixed and movable impeller blades and guide vanes, single-flow, single-stage and multi-stage, guide wheel with discharge bend or spiral casing
Application: Pumps for drainage and irrigation, (drinking) water supply, storm water pumps, waste water pumps, storage pumps, cooling water pumps, pumps for desalination plants
Radial-flow pumps
Pump total head: Up to the order of magnitude of 500 m per stage and of 1 200 m and more in total head in the event of several stages
Type of construction: Fixed impeller blades, fixed and movable guide vanes, single- and double-flow, single- and multi-stage
Application: Pumps for irrigation, (drinking) water supply, storage pumps, cooling water pumps, pumps for desalination plants
Ternary systems
Ternary systems consist of a motor generator and a separate turbine (typically Francis or Pelton) and a pump set. As two separate hydraulic machines, the rotational direction of the motor generator can be the same in both operational modes. This results in considerable commercial value for the power plant's operation. For the switch between turbine and pump operation, a clutch operable at standstill, a starting turbine or a synchronizing torque converter can be provided.
Torque converter
The startup of the storage pump already begins during the filling process. As the pressure level of the filling water rises, the torque output by the converter increases and thus accelerates the pump. This acceleration torque, which is initially very high, continuously decreases as secondary speed rises. When reaching the synchronous speed, the converter output torque corresponds to the pump priming torque.
Due to the soft interaction of these processes, the storage pump can be started up quickly and without load surges for the grid.
Multi-stage pumps
Your contact for pumps – how can we help you?
In 1937, Voith developed the first large, single-stage pump turbine, which operated both as a turbine for energy generation and in the reverse direction as a pump. Today, nearly 200 Voith pump turbines have been installed worldwide with a combined output of more than 25 000 megawatts.
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