Waste water and water treatment engineering, chemical and petrochemical industries, pulp and paper, textile industries, soap and fats industries, building, ceramics and mining industries, paint industry, dairy and beverage industries, meat and fish processing industries, tanneries, pharmaceutical, cosmetics and oenological industries. Suitable for pumping and dosing low or high viscous, pasty, pure, neutral, aggressive or abrasive liquids, those containing gases or which tend to froth or those containing solids. They can also be used as a vacuum pump in evaporating plants.
Two rollers on a rotor compress alternating with each other a thick-walled hose ina patented concentric guide and push on account of the rotation the content of the hose (the pumped liquid) from the suction to the discharge side. Through the subsequent opening of the hose a vacuum on the suction side is created by which a continuous aspiration results. For sizes N1-N4, the rotor is supported by oversized ball bearings located inside the pump casing, while for sizes N5-N10 it is supported by the heavy-duty bearings of the flanged geared reducer.=