Tsurumi reported it is equipping several dewatering pump series with ultra-hard chromium impellers with no price increase.

The high chromium content of up to 28% makes the impellers extremely wear-resistant, the company said. The material is five times more resistant to abrasion than grey cast iron or stainless steel.

Tsurumi uses semi-vortex impellers. With purpose-designed adjustable wear plates, the pumps achieve hydraulic efficiency levels similar to those using closed impellers, but without the disadvantages, the company said. By adjusting the wear plate, the optimal pressure point of the pump can be set, and the impeller can run significantly longer. “This reduces the costs and maintenance times of the pump.”