One advantage for the operator is that such valveless positive-displacement pumps are also capable of transporting stringy material safely. Whether for sludge, chemical substances, adhesives, petroleum or yogurt, one of the eleven pump types by NETZSCH in four rotor/stator geometries and a selection of engineered joints make sure to suit your application.To get more news about Screw pump rotor, you can visit hw-screwpump.com official website.

To further increase the service life of NEMO? progressing cavity pumps in wear-intensive applications, NETZSCH Pumps & Systems has developed a special stator adjustment unit, called xLC? unit which is based on the easy-to-replace and easy-to-maintain iFD? stator 2.0. If the sealing line between the conveying elements rotor and stator fails due to wear, compressing the elastomer can easily and quickly restore the pre-tensioning, and with it the pump performance. Moreover, an integrated display provides information about the readjustment status of the stator and when a stator change is impend at all times. Thus the tool ensures more operational and planning safety. To minimize the wear, the xLC? system canbe combined, for example, with joints and seals as well as special wear coatings for rotors.
The HR helical rotor pumps are a positive displacement pump, the rotor has an eccentric movement which when rotating inside the stator effectively squeezes water through the pump on every rotation. This positive displacement action means that water is pumped when the pump is running at very low speeds and that high pressure can be created making it able to pump water at high lifts.
The high efficiency and ability to produce high pressure means that water pumping can start early in the day when the solar power is low and that the pump will continue late into the afternoon.

Helical rotor pumps only have two main parts: stator and rotor – the stator is made of abrasion resistant rubber in a stainless steel stator housing, the rotor is made of solid stainless steel. This design makes it very robust and gives the pump a long operational life.

To maximize efficiency the pumps are supplied with different tolerances (classes) that are optimized for different water conditions and operating temperatures.