Atlas Copco launches next-generation Weda D95 dewatering pump

Atlas Copco Power and Flow has launched a next-generation electric submersible dewatering pump, the Weda D95, incorporating state-of-the-art Wear Deflector Technology, for heavily abrasive environments such as mining, tunnelling and construction.

Weda D95 has a power rating of 37–43kW and is the latest pump in the Weda D drainage range to feature the innovative Wear Deflector Technology designed to minimise wear and provide consistent performance over a longer operating life. Features include a high chrome wear resistant impeller and solid-redirecting auxiliary vanes. The pump also features re-adjustable hydraulics which allow the pump to be simply realigned to compensate for any wear, thus prolonging its life.

“There are often many suspended solids in harsh applications which can cause excessive abrasion and wear to the internal workings of the pump,” says Bart Duijvelaar, Product Marketing Manager – Submersible pumps at Atlas Copco Power and Flow. “We have optimized the hydraulic design using Computational Fluid Dynamics (CFD) and applied 21st century manufacturing techniques combined with decades of experience to produce this new long-lasting and reliable pump.”

The pump has also been built with maintenance and serviceability in mind. The design allows users to carry out inspection and maintenance on site themselves and reduce downtime and associated costs. For example, the mechanical seal is a unique stainless-steel single cartridge, rather than many separate components, and so it is easy to replace in one piece.

Weda D95 also features external oil inspection screws. Operators can easily access the screws to check the quality of the oil and the health status of the seal without having to dismantle the whole pump. This makes preventive maintenance easy so users can detect problems before they lead to failure. Overall, with the ease of service, it is possible to readjust the pump to the original performance without changing many parts.

With state-of-the-art manufacturing and 3D modelling tools, Atlas Copco is addressing product performance and technical challenges at the design stage.