Abrasion-resistant coatings to extend the service life of pump impellers
Solid impingement, changing viscosity of the pumped liquid, abrasive and impacting loads - this is the reality of a typical pump impeller. It's no wonder that expectations regarding the operating lifespan are limited. Just like in real life - with increasing age, the performance, or to put it technically correctly, the pump efficiency, decreases rapidly. And then? Below you will find an unusual solution - not for all applications, but for many!.
Ask us about: open impellers, closed impellers, single-blade / multiple-blade impellers, non-clogging impellers, screw impellers, rubber / polyurethane impellers
MetaLine Series 700 – MetaLine Series 700 coatings absorb destructive impact energy through permanently elastic material properties. Coating thickness is adapted individually to the stress parameters and flow conditions of the pump design. This usually results in 4–5 times higher lifetimes for impellers coated with MetaLine compared to unprotected cast iron designs. Depending on the actual impeller size, coatings up to rotational speeds of approximately 1.500 rev/min. are recommended. The solid content of the pumped medium can be well over 50 %. Constant liquid temperature should not exceed 60 °C (140 °F) on average. Ideal for saltwater (offshore) applications.
The elastomeric MetaLine coating technology is the great winner of the "KSB® Pumps (Germany) coating test". In comparison with about 25 international competitors, our energy absorbing material process has established itself with an up to 35 (!) times higher wear resistance!
As the only (!) synthetic coating at all, MetaLine has been classified by KSB® as "... a functional cavitation protection ..."! The erosion resistance was even rated twice as high as the special alloy "Noridur" from KSB®!
The reason for this performance advantage lies in particular in the fact that we rely on energy-absorbing (soft) rather than energy-deflecting (hard) surface properties. This is a great success, but it comes at a price: simply “brush on by yourself” will not lead to success. It is a multi-stage process that must be applied by qualified hands!
MetaLine Series 700 coatings absorb destructive impact energy through permanently elastic material characteristics. The coating thickness is individually adapted to the load parameters and the flow speed of the pump design. As a result, MetaLine coated impellers generally have 4–5 times the service life of unprotected gray cast iron components.
Depending on the actual impeller diameter, our coatings are recommended up to a rotational speed of approximately 1,500 rpm. The solid content of the pumped slurry can be well over 50 %. The fluid temperature should not exceed 60 °C (140 °F) on average. Ideally suited for saltwater (offshore) applications.
