Submersible dewatering pumps line beefed up and simplified

28 May 2019 | Web Article Number: ME201914614

Construction, Civil & Structural Engineering
Hydraulics & Pneumatics
Pumps, Valves, Pipes & Fittings
Water & Effluent Management

ATLAS Copco has extended its portfolio of WEDA electric submersible dewatering pumps, with the completion of the ranges for drainage and sludge applications as well as the addition of a new range for slurry applications.

“Through these range expansions coupled with design enhancements, our WEDA pumps are now capable of providing flow rates of up to 16,500l/min with power ratings up to 54kW,” said David Stanford, Business Line Manager of Portable Products at Atlas Copco Power Technique. “These pumps present the perfect dewatering solutions for numerous diverse applications across the construction, industrial, emergency and maintenance sectors.”

The entire WEDA assortment has been simplified for customers with all models classified by the application and type of fluid that they manage from small to highly challenging solids. Split into three divisions, the range now includes the expanded WEDA D for dewatering, the WEDA S for sludge and the brand new WEDA L for slurry.

Submersible dewatering pumps line beefed up and simplified

Designed to handle both clean and dirty water, the WEDA D pumps have the ability to even manage small solids. Utilising the top-discharge function, WEDA D pumps handle water of specific gravity to 1100kg/m3 and solids of 4 – 12mm diameter. The new D80 dewatering model takes centre stage in this series.

Extending the WEDA S sludge fold which is ideal for the dewatering of liquid sludge with bigger solids, are the new S30 and S60. These models are able to handle thick, soft, wet mud or other similar viscous mixtures of liquids and solids, especially products from an industrial or refining process. The WEDA S pumps’ bottom side discharging capabilities cover water with specific gravity to 1400kg/m3 and solids of 25 – 50mm.

The large apertures of the new rugged WEDA L series facilitate the handling of slurry containing the most challenging solids. This new kid-on-the block efficiently manages semi-liquid slurry mixtures usually made of fine particles of manure, cement or coal, and water. Utilising bottom side discharge, WEDA L pumps manage water of specific gravity up to 1700kg/m3 and solids of 20 – 60mm diameter.

All pumps in the D and S range are available with WEDA+ features which include phase failure protection, rotation control, thermal switches and a 20m cable with phase shifter plug for all 3 phase pumps. The WEDA+ features are also available as an option on the L range.

According to Stanford, enhanced performance is carefully balanced with ease of operation. “Whilst revitalising the WEDA range Atlas Copco placed great focus on not only optimising the pumps performance, but also making the pumps lighter, increasing electrical safety as well as improving the seal design, installation and maintenance,” he said. “The compact design, coupled with a 20% lower weight compared to similar products, facilitates machine handling and transportation.” He added that this also makes them particularly suited for rental use.

Stanford said that to ensure seamless operation in harsh environments, all WEDA models feature a built-in starter and motor protection system as well as optional automatic level control. Enhanced machine durability is achieved through adjustable wear-resistant rubber diffusors and hardened high-chrome impellers. Furthermore, higher corrosion resistance across all applications is possible through an improved aluminium alloy, whilst reinforced cable entries provide higher resistance to water leakage.

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