Popular dewatering range extended
31 August 2020 | Web Article Number: ME202020143
THE popularity of the WEDA electric submersible pump series for dewatering solutions in the construction, industrial, agricultural, emergency and maintenance sectors has prompted Atlas Copco to extend the portfolio.
That’s according to David Stanford, Business Line Manager of Portable Products at Atlas Copco Power Technique who said that in addition to the introduction of slurry pumps, the WEDA L series, the engineering group also expanded the WEDA D drainage pump and WEDA S sludge pump ranges.
“The WEDA series boast flow rates of up to 16,500l/min with power ratings up to 54kW and can manage water with specific gravity up to 1700kg/m3,” he said.
WEDA D drainage pumps are designed to pump water containing abrasive solids of 4 to 12mm dia. Featuring a top-discharge function, these drainage pumps are capable of handling water with specific gravity to 1100kg/m3. For optimum flexibility, discharges can be mounted vertically or sideways as required. WEDA D pumps are ideal for an extensive range of applications such as ground and raw water removal, excavation and open pit dewatering as well as storm water and flood control.
Stanford said the WEDA S range is highly suited to tough conditions and is capable of pumping sludge, light slurry and muddy water containing abrasive and larger solids of 25 to 50mm dia.
“These pumps can handle the dewatering of liquid sludge, thick, soft, wet mud or other similar viscous mixtures of liquids and solids typically resulting from an industrial or refining process. With a bottom side discharging capability for the handling of water with specific gravity to 1400kg/m3, WEDA S pumps are ideal for tank clean-out, agricultural product wash-down pits and trench and pond cleaning.”
The WEDA L slurry pumps are designed for the dewatering of abrasive media with a high solid content typically found in quarrying, mining or dredging applications.
“These pumps efficiently manage semi-liquid slurry mixtures usually made of fine particles of manure, cement or coal, and water. The large apertures of the rugged WEDA L series facilitate the handling of slurry containing solids of 20 to 60mm dia. while the high-efficiency high-chrome agitator facilitates the lifting of settled solids. Also using a bottom side discharge, WEDA L pumps manage water of specific gravity up to 1700kg/m3.”
All pumps in the drainage (WEDA D) and slurry (WEDA S) ranges 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.
“Atlas Copco has focused on not only optimising the performance of the WEDA series but also on making the pumps lighter, increasing their electrical safety, improving the seal design and simplifying installation and maintenance,” Stanford said, adding that the more compact design, coupled with a 20% lower weight compared to similar products, simplify handling and transportation, making these pumps particularly suited for the rental market.
The pumps’ light weight is due to the use of unique aluminium alloy which also offers strength and corrosion resistance for seamless and reliable operation in harsh environments across all applications.
These pumps feature rugged components, class F motors and class H electric motor insulation. The starter and motor protection system are built in, and a double silicon carbide mechanical seal prevents the ingress of contaminants. The pumps include adjustable wear-resistant rubber diffusors, hardened high-chrome (55HRC) impellers and heavy-duty bearings (that can withstand shocks and overloads) which further enhance pump durability.
“Maintenance on these pumps is quick and hassle-free, keeping uptime to the max. External oil inspection and grease- filling plugs are easy to access, and all pumps conveniently contain seal types appropriate to their size.”
Atlas Copco supports WEDA pump customers across the southern African region through products, parts and spares.