Inlet pumping stations are somewhat similar to large terminal pumping stations. Depending on the depth of the incoming sewer, the lifting heads can range from around 2 up to 30 meters. To prevent hydraulic shock loads, which negatively impact the biological process, the stations often make use of variable-speed drives and/or several pumps in parallel.

Network pumping stations collect municipal wastewater from residential homes and communal schemes. Installed in dry or wet wells, the pumps deliver the effluent to a terminal pumping station. Since most pumping stations are not equipped with screens, the pumps must cope with difficult materials such as fibrous sanitary and packaging items.

Outlet pumping stations are required when the level of the treatment plant is lower than that of the receiving water. This is especially true when discharging into a river, which can rise during heavy rain or flood periods, or into the sea, where the level varies with the tide. Outlet pumping stations may also be needed to compensate for increasing frictional losses in the outgoing pipe at high flows, for example in long sea outfall pipes.

During heavy rainfall, storm water pumping stations deliver large volumes of water at low head to receiving surface waters or sewers. Having long been a part of flood management, they are increasingly involved in climate adaptation strategies for low-lying coastal cities.

Storm water retention tanks act as a buffer during periods of heavy rainfall. This is increasingly important as areas become more developed, with hard surfaces such as roofs, roads and parking lots that cannot absorb the rainwater. When storm water retention tanks are implemented, gravity or pumps can be utilized to provide a reduced continuous flow into the sewer system. Sulzer expertise makes it possible to avoid peak hydraulic loads and to limit the stresses on existing sewer systems.

Terminal pumping stations receive municipal wastewater from network pumping stations. Installed in dry or wet wells, the pumps forward the medium to a treatment plant for final purification. Due to the lack of screens at most pumping stations, difficult materials such as fibrous sanitary and packaging items are a constant threat to uptime.

The CA 441 performs leakage monitoring on submersible pumps. With four signal inputs, it monitors up to four individual pumps or one pump with separate alarms. The unit can be mounted either in the cabinet or up to 250 meters away from the pump (when using the same earth potential). CA 441 can only be used in combination with the PC 441 monitoring/controller unit.

The CA 442 is a temperature monitoring unit with four signal inputs. It can monitor one to four pumps with combined alarms (one alarm per pump) or up to four separate alarms using one unit per pump. The CA 442 can be connected to the PC 441 via a CAN-bus interface and can only be used in combination with the PC 441 monitoring/controller unit.

The CA 443 is an electrical property measuring device used either for a complete station or for a single pump. It can be connected to the PC 441 via a galvanic-isolated CAN-bus interface and can only be used in combination with the PC 441 monitoring/controller unit.

Communication module type ABS CA 622 allows you to send and receive information to your peripheral products via your existing pump controller PC 441 using a RS 485 Modbus interface.

Sulzer offers one of the most comprehensive ranges of submersible pumps available on the market today. The applications extend from pumping of light and medium duty within residential and commercial properties to pumping of heavy duty with high concentration of rags and solids in municipal wastewater collection networks and in industrial wastewater applications.

Sulzer's energy efficient submersible mixers are suitable for a wide range of applications in industry and municipal treatment plants. They provide the right solution to match mixing tasks for agitating, blending, mixing, dissolving and suspension of solids in industry and municipal treatment plants.