New submersible pumps in discharge tube with a maximum flow rate of 8000 m³/h for a wide range of applications
The new AmaCan D submersible pumps in discharge tube are designed for low life cycle costs. (© KSB SE & Co. KGaA) The new KSB submersible pump in discharge tube design has an open multi-vane impeller. The type series has been named AmaCan D. Its main application is transporting large volumes of municipal or industrial water as well as wastewater from stormwater, drainage and irrigation pumping stations. When selected with optional corrosion-resistant and abrasion-resistant materials the type series can also be used in water pollution and flood control or in seawater aquaculture systems. The pump generates a maximum flow rate of 8000 m³/h and a maximum discharge head of about 30 m. The highest motor rating available as standard is 340 kW. Priorities set by the developers were to achieve a high operating reliability of the waste water hydraulic systems as well as high hydraulic efficiencies. Here, they were focusing on the typical operating ranges of submersible pumps in discharge tube. The pump's self-centring, non-positive seating in the discharge tube, sealed by an O-ring, makes it easy to install and remove. No anchoring or anti-rotation elements are needed. Integrated, intelligent sensor monitoring detects any vibrations or leakages and measures the temperature of bearings and motor. It provides continuous supervision of operation and early detection of malfunctions as well as the option of predictive maintenance. All electric motors of these pump series are of an efficiency corresponding to class IE3 for standardised motors to IEC 60034-30. Two bi-directional mechanical seals prevent water ingress into the motor space. A chamber filled with environmentally friendly oil ensures cooling and lubrication of the mechanical seals even when gas-laden fluids have to be pumped. Generously dimensioned ball bearings sealed for life support the stainless steel shaft. Special focus was further placed on the design of the cable gland. Individual conductors stripped, tinned and sealed in resin ensure that the cable gland is absolutely watertight. Even in the event of damage to the cable sheath or the insulation, thanks to this design the pump is protected against short circuits. To ensure that the pumps can be easily dismantled even after years of operation under tough conditions, all wetted screwed connections are made of high-grade stainless steel. www.ksb.com Read the full article
