Established 1986 · Sales · Repairs · CNC Manufacturing
KRAL · Positive displacement · Range 02 of 14

Rotary Screw Pumps

Cyclone is the exclusive South African partner to KRAL of Austria. Two- and three-screw pumps deliver a constant, pulsation-free flow rate largely independent of discharge pressure.

Rotary Screw Pumps
Maximum flow213 m³/h
Maximum head / pressure120 bar
Temperature / materialOn application

What it does.

Unlike centrifugal pumps, screw pumps operate on a linear flow principle that maintains a consistently high volumetric output regardless of pressure changes in the system.

The synchronised axial delivery of the multi-spindle geometry guarantees a constant flow rate. Housings are cast from high-strength nodular iron (EN-GJS-400) and paired with precisely nitrided spindles.

Liquid media it handles.

  • Viscous or shear-sensitive
  • Clean liquid or water
  • Chemical dosing

Where it is specified.

  • Oil & gas
  • Chemical processing
  • Power generation

Engineering features.

Pulsation-free delivery

Constant axial flow — no ripple to fatigue pipework or upset metering.

Low shear

Product passes through undisturbed, whatever its structure.

Linear speed-to-flow

Volumetric flow controls precisely and predictably from a VFD.

High power density

Exceptional delivery relative to footprint.

Hermetic magnetic coupling

Optional, for zero-leakage mandates or extreme thermal loads.

If this is not the right geometry.

Three other ranges that may suit the duty better.

Found the one that fits your need?

Send a duty point, a failed part number, or a drawing. We will come back with a sized selection and a lead time.