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New Low-Speed Submersible Mixer Introduced by KSB

KSB, a leading producer of pumps and valves for the water, wastewater, oil and gas, energy, and building services industries, is now offering a new kind of low-speed submersible mixer that is perfect for use in biogas production and wastewater treatment plants. The Amaprop 1380 low-speed submersible pump is unique because it is able to function as a backup mixer, scum breaker, or flow accelerator. Not only is it effective when installed as the only mixer, but it can also be used in combination with larger mixers.

There are a number of details that make the Amaprop 1380 a unique and effective mixer. It has a hard-wearing propeller that is made out of robust nodular cast iron, ensuring that it runs dependably for many years. The contours of the mixer were developed with the help of computational fluid dynamics (CFD) simulations. It is able to generate high volume flow rates, which results in an axial bulk flow.

The mechanical seals in the mixer are arranged in tandem so that they are able to seal off the gearing and motor compartment. An oil reservoir is located between the two mechanical seals and is filled with environmentally friendly oil, which keeps the seal faces lubricated and cool. Safety is an important feature of this mixer as well. A leakage chamber between the oil chamber and the gear unit ensures it runs smoothly.

The cable entry is completely watertight, so leaks aren’t a problem. A plug connector in the motor space connects the cable to the motor winding, which allows for in-situ cable replacement.

Robust helical spur gears are used because they run quietly and offer a long life, while three-phase motors occupy a rating range of 6 to 13kW. The motors in the mixer are series-equipped with maintenance-free bearings, temperature sensors, and moisture sensors, which are able to protect the windings from overheating and excess moisture. The mixer’s mounting angle and height are easy to adjust with a stainless steel lowering device.

Source: KSB