Vertical, multistage centrifugal pumps with closed impellers and diffusers. Suction nozzle flanges are according to DIN 2533 / PN 16 and discharge nozzle flanges are according to DIN 2535 / PN 40.
Axial thrust is balanced by back wear ring and balancing holes in each impeller.
Pump impellers are balanced statically and dynamically according to ISO 1940 class 6.3. Pump shaft is coupled with standard motor shaft by means of a flexible coupling.
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