Pumps and Compressors


HK can repair Staffa radial piston motors, and supply spare parts or a new motor supply.





Pullmaster brand hydraulic winches with planetary gearboxes.





Hydraulic winches for deck machinery, available with special marine coating.





Spare parts for repairs of axial piston pumps and radial piston motors are available from stock for main manufacturer series.





Power packs can be supplied on the customer's demand for dock or ship-based applications.






The mark of quality – IMO pumps are trusted in over 50% of today’s ships.

IMO OptiLine magnetic coupled pumps are leak free and require virtually no maintenance.

A tradition of quality and a passion for new thinking keep us at the forefront of the marine pumps industry.

Iron Pump
Iron Pump specializes in pumps for the marine and energy sector.
QT heeling pumps
QT heeling pumps primarily operate on heeling duties where large capacities, low heads and two-way operation are of vital importance.
Axial split casing centrifugal pump
The QV/QH is a horizontally or vertically mounted axial split-casing centrifugal pump.
In-line pumps
Iron Pump has developed a new series of in-line pumps to serve the maritime industry.


WP45/65 L. This two-stage, air-cooled compressor, providing excellent reliability and simple maintenance, has been used on various vessels including coastal ships, offshore supply boats and tugs.

WP121/151 L. In the early 1970s, Sauer & Sohn introduced the first 3-three-stage air-cooled compressor unit, the WP100L, and since then, several hundred units have been installed on board ships including cruise liners, ferries, oil tankers and cargo vessels.

Diagram illustrating the advantages of using three-stage, air-cooled compressors.

WP240. This water-cooled compressor is designed with the cylinders positioned in a 90° V-configuration, resulting in an almost perfect balance of the units.

In addition to compressors for application in merchant ships, Sauer & Sohn offers shock and vibration proof navy compressors such as the unique WP5000.

KRAL precision
KRAL precision – more than 30% of KRAL's production staff are master craftsmen of pumps and flow measurement systems.
High power density displacement pumps
KRAL high-power density displacement pumps. The compact single pumps and pump stations handle a range of liquids.
KRAL Volumeter®
The KRAL Volumeter® is a robust liquid flowmeter and offers laboratory precision even in harsh, industrial applications.
KRAL screw pump
KRAL screw pump with magnetic coupling.
Complete economy system for single-engine measurement
Complete economy system for single-engine measurement, typically river boats and yachts.

Mechanical seals
Roodhart re-conditions, modifies and sells mechanical seals, pumps, compressors and valves.
Stainless steel ball valves
Roodhart has a dedicated workshop for the overhaul or manufacture of stainless-steel ball valves.
Mechanical seals
Mechanical seals can be repaired or modified, extending their economical lifespan and reducing operating costs.
Roodhart VL rotary pump
The Roodhart VL rotary pump is available in both horizontal and vertical rotary lobe designs.
Roodhart T3S-N screw pump
The Roodhart T3S-N three-screw horizontal and vertical screw pump.


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