KSB Tauchmotorpumpe Amarex

The Amarex submersible pump with innovative impellers: greater efficiency, fewer blockages

The new F-max and D-max impellers are highly efficient and ensure a long pump life. And all this with reduced maintenance and energy-saving motors: With this combination, KSB is making a valuable contribution to environmentally friendly sustainability.

We make problem-free waste water transport even more efficient

When it comes to sewage, KSB can draw on many decades of experience and technical progress like no other manufacturer. All the expertise we have acquired combined with a passion for developing increasingly better solutions has now been incorporated into the Amarex submersible pump with two different impellers, the F-max and D-max.

Produced in France using only European components, this model is setting new benchmarks in all aspects:

  • Hydraulic efficiency has been increased by a further 10% thanks to the improved impellers.
  • The optimum hydraulic efficiency combined with highly effective electric motors ensures low electricity costs.
  • Generously sized drive motors, robust roller bearings and shafts made of corrosion-free stainless steel guarantee a long service life.
  • A non-toxic, environmentally friendly oil filling ensures permanent lubrication for the mechanical face seal.
  • Virtually all built-in components can be separated and recycled at the end of their life cycle.

is paid to impeller design. The Amarex uses either the optimised F-max free-flow impeller or the newly developed D-max open dual-vane impeller.

Figures from the SNECOREP (French National Association of Pumping Station Contractors, Designers and Builders) show that blockages account for up to 70% of overall costs in around 80% of existing pumping stations. That’s why special attention

  • Maintenance requirements are reduced significantly thanks to these impellers with a clog free design.
  • The D-max version can also be supplied with a D-flector. This patented scraper provides even greater protection against blockages caused by wet wipes.

Our services for waste water

Successful operation of your pumping systems requires more than just exceptional products: you can also benefit from our extensive service portfolio for planning, operating and maintaining pumps, valves and other rotating equipment. With more than 3,500 specialists in over 190 service centres worldwide, we are at your service in your area.


Spare Parts

KSB offers complete spare parts kits for many pump ranges. The kits contain sealing elements, bearings and impellers, for example, and are considerably less expensive than purchasing each part separately.

Our products for waste water transport

KSB is a full-service provider for pumps, valves and services for waste water disposal and transport, offering decades of experience and in-depth application expertise. All KSB products are permanently efficient, reliable and low-maintenance for trouble-free, cost-efficient operation.



Vertical single-stage submersible motor pump for wet installation, with vortex impeller (F-max) or open dual-vane impeller (D-max), stationary or transportable version. Single-stage, single-entry close-coupled pump sets which are not self-priming. ATEX-compliant version available.

Amarex KRT

Amarex KRT

Horizontal or vertical single-stage submersible motor pump in close-coupled design, with various next-generation impeller types, for wet or dry installation, stationary or transportable version, with energy-saving motor and models for use in potentially explosive atmospheres.



Protection module for water and waste water products as all-in-one device. Depending on the variant, it can be used for motor temperature measurement, bearing temperature measurement, leakage measurement, vibration measurement, voltage measurement and current measurement as well as for diagnosing a pump, pump system or submersible mixer to ensure trouble-free and reliable operation.



Knife gate valve to DIN/EN with wafer-type single-piece or two-piece body made of nodular cast iron, bi-directional, with gland packing, non-rising stem, corrosion-protected by epoxy coating.