Stator for Longer Service Life

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New adjustment unit for progressive cavity pump

Pumps, Valves & Compressors

Stator for Longer Service Life
Stator for Longer Service Life

Another component was added to the product portfolio of the NEMO progressing cavity pump from NETZSCH​​​​​​​: the xLC unit. This triples the service life of the pump, particularly when conveying difficult, abrasive media. The xLC unit is an essential part of this. When wear occurs in the rotor-stator system, this new unit allows the performance of the pump to be re-established by adjusting the preload between the conveyor elements

Preload Adjustment

It is important for the xLC stator adjustment system that the elastomer in the rigid metal sleeve of the stator is flexible, which was made possible with the development of the proven iFD stator 2.0. The xLC adjustment system uses this characteristic so that the elastomer is not vulcanised into the housing but rather fixed through axial pressing. To regulate the preload in the rotor-stator system, the elastomer in the sheath is extended by pulling or shortened by pressing, which changes the preload between the pumping elements. In case of wear, compressing the elastomer increases the preload and re-establishes the reduced sealing line. How it works: If the stator has to be adjusted due to declining performance of the pump, the setting nuts of the system are adjusted, com-pressing the elastomer insert in the metal housing once again. A scale with seven de-fined stop points facilitates gradual adjustment of the stator with only two setting screws while also showing the remaining potential until stator change.

Posted on October 9, 2018 - (967 views)
Netzsch Pumpen und Systeme GmbH
Geretsrieder Straße 1
84478 Waldkraiburg - Germany
+49-8638-630
+49-8638-67981
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