Example of a medium size HIDROSTAL screw centrifugal pump


High efficiency = low operational costs

Steep characteristic (blue)
= stable operating point

Low NPSH (green) = high suction capability

Flat power curve (pink) = non overload area

High rotary speed = small construction

Our research work has produced screw shapes that permit high rotary speeds, which results in considerable energy savings in applications involving small quantities and large heights.

A = Operation point
B = better efficiency
C = large pressure reserve

--- large Impeller, low rpm.
__ small Impeller, high rpm.

For each application area, special impeller shapes and the corresponding metallurgy have been developed. As a result, a high service life with the lowest possible costs is guaranteed.

With abrasive media, a suction cone from wear resistant material, which can be adjusted externally, is used. In this model, the wearing parts can be readjusted externally without having to dismantle the pump.

For extremely corrosive and abrasive media, HIDROSTAL special alloys are used.