The choice of pump impeller determines the efficiency of the sewage pump system!

Channel impeller (aka high head closed channel impeller) Channel impeller

The channel impeller directly acts on the sewage pumping liquid and the liquid passes through the impeller itself. It can be described as a closed, semi-open or open impeller. The impeller can have one or more different sized channels, allowing free passage of impurities to a specific size. High sand content liquids can cause gap problems, but if properly specified, the impeller type's efficiency can be as high as 80-85%.

Application: Channel impellers are often used for sewage and rainwater, especially in the case of high flow and high lift. Pumping stations are used where there is a problem with the liquid flow between the tanks, such as pumping sewage into the drainage system for more information on the pump station.

Eddy current impeller

The vortex impeller generates rotating water, forming a vortex. The advantage of vortex impellers on channel impellers is to minimize the risk of plugging. When the sewage pumped liquid contains a lot of sand, they are also a better choice. The efficiency of a pump with a turbulent impeller is usually lower than that of an impeller with an impeller.

Application: Vortex blades are commonly used for sewage and rainwater, especially when handling high sediment loads.

Grinding machine impeller

The mill impeller is usually located in a centrifugal pump with a grinding system at the pump inlet to cut larger particles and fibers into homogeneous waste water. This reduces the risk of pump clogging and minimizes the piping system.

The mill impeller is well suited for pump systems with smaller pipe diameters and the flow rate is usually low. However, this type of impeller is not suitable for pumping high sand content media and consists of more wear parts and therefore requires additional duration. Maintenance and spare parts. It is very important to maintain the pump.

Application: Mill impellers are commonly used for wastewater treatment when the head is high or small.

S tube impeller

One of the biggest challenges facing the wastewater industry in recent years has been the decision whether to choose a sewage pump that can provide energy-saving performance or free passage. The Grundfos S-tube® is the only impeller available on the wastewater market and does not affect the hydraulic efficiency or the free passage through the pump, eliminating the need to wear cutting or moving functions over time, ensuring consistent over time Provide excellent efficiency.

The S-tube impeller is a tubular impeller placed inside a sewage pump casing that matches the smooth shape of the entire pump, with no obstacles or dead zones through hydraulic pressure.

Application: S-tube impellers are commonly used for sewage and wastewater.

Screw impeller

Spiral impellers have mild operating characteristics combined with particularly large free channels and excellent solids handling capabilities, making them suitable for a wider range of applications. The impeller consists of a single spiral blade forming a long slow turn from the axial inlet to the radial outlet. This design provides optimal hydraulic performance.

Spiral impellers are capable of very good sewage pumping of raw unscreened sewage and are capable of handling sludge and mud comfortably. Its application is very flexible. The impeller provides a series of liquids that are highly efficient and are usually highly abrasive and even corrosive.

Applications: Spiral impellers are commonly used for solids processing, pumping viscous sludge, handling fragile or low-shear products, and chemical and corrosive applications.

propeller

Propellers are used to pump large amounts of water at low heads. Both the propeller and the impeller provide thrust but do it differently. The propeller "impeller" is actually a fan that pushes the fluid to propel it. The traditional type of impeller is a rotor that generates suction. These are easily confused with stirrers or mixing devices.

Application: Propellers are commonly used for water skiing and river dewatering.

Mixed flow impeller

The term "mixed flow" describes the middle direction between the axial (along the axis) and the radial (perpendicular to the axis). In the case of a centrifugal pump, the term "mixed flow" means that the fluid flowing in the impeller is transported in a half-axis direction. This design generates pressure and pressure heads through centrifugal and axial forces. Mixed-flow impellers are also known as diagonal impellers.

Applications: Usually use mixed-flow impellers when high head and high flow installations are required

To sum up: the types of pump impellers are also quite varied. Choosing the parts and caliber sizes suitable for the pump itself can maximize the system efficiency. The shape and size of different types of impellers are also different from each other. Therefore, it is recommended that you purchase them at the time of purchase. Can first understand the sewage pump model, in the selection of the appropriate pump accessories!