The basis of any Progressive Cavity Single Screw Pump is a power section which usually consists of a metal rotor (n-start external helix) and a rubber stator (n+1-start internal helix). Rotation of the rotor inside the stator creates sealed cavities that progressively move from suction to discharge side of the pump producing differential pressure.

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As part of the modernization of the sewage treatment plants at one of the largest tanneries Russian enterprises, the company SOLTEC ® Novomoskovsk Mechanical Plant manufactured set of pumps for activated sludge (BN076L01HZ pumps in industrial performance, the capacity of 40 m3/h, pressure up to 4 bar), as well as to supply the flocculant (pumps BN063L01FY made of stainless steel, capacity 39 m3/h, pressure up to 3 bar).