New chopper pump achieves excessive effectivity without compromising on cutting performance

Problematic solids such as sanitary towels, plastic luggage, textiles and wood are being discovered increasingly usually in wastewater. Pumping and sewage remedy crops are due to this fact increasingly reaching their limits; units get clogged up and break down.
In times when low lifecycle costs are enjoying an ever extra important role, HOMA Pumpenfabrik provides an vitality environment friendly and reliable answer for areas where a high supply head is required, however at the similar time, a various range of solids is expected: the Alligator chopper pump collection. The newly developed OC impeller of the Alligator sequence allows efficient operation by way of a strong cutter system. Thanks to the usage of highly sturdy chilled chrome forged iron, the primary components which are topic to the most stress perform reliably even with abrasive substances such as sand. HOMA will be presenting the brand new Alligator chopper pumps for the primary time at IFAT 2022 in Munich.
“The lowest potential lifecycle costs have gotten more and more necessary in water and wastewater purposes,” explains Konstantin Pörsch, Project Manager in the Design & Development department at HOMA Pumpenfabrik GmbH. “There is a rising demand for energy saving and dependable pumps that attain high delivery heads with great efficiency.” With its new Alligator chopper pump series, which may also be out there as an explosion-proof version, HOMA has developed a very efficient response to this demand.
Cutter system shreds all solids with excessive effectivity
“Our goal was to achieve high supply pressures in the medium move fee range,” reviews Konstantin Pörsch. Without forfeiting pump fee, the improved efficiency meant that a smaller, cheaper and more vitality saving motor than in different pumps in the identical working range was enough. To obtain this, HOMA developed a brand new cutter system that effectively shreds and removes large quantities of diverse solids such as tear-resistant hygiene wipes, plastic bags and wooden, which additionally get into the wastewater by way of floor water. The specially designed impeller has built-in cutters and a sharp-edged radius of 10 mm to the wear plate, which can be geared up with its personal cutter. Bona fide allows the 2 central parts to work collectively to catch solids, break them down and finally remove them from the suction space by way of built-in grooves in the wear plate.
To enable larger effectivity without compromising on slicing efficiency, the blades of the impeller also curve strongly backwards. As a result, in the 50 Hz model, a move fee of as a lot as one hundred thirty m³/h and a supply head of up to fifty seven m may be achieved with power consumption of 5 to 12 kW. In the 60 Hz model, with energy consumption of eight to twenty kW, a circulate rate of as much as one hundred forty m³/h and a supply head of as much as 82 m are attainable. The suction cover mounted on the pump housing can additionally be used to regulate the cutting hole between the impeller and the damage plate with the help of six set screws. “The strength of our new Alligator series, which is available for moist properly installation as properly as dry installation, is its great effectivity and efficient cutter system, coupled with an extended service life,” provides Konstantin Pörsch.
Low lifecycle prices thanks to wear-resistant design
In order to realize not only the best possible effectivity values in the working range required for these kinds of wastewater purposes, but additionally to cut back lifecycle costs total, HOMA attaches nice importance to low-maintenance operation along with efficiency. The impeller and put on plate, which are the elements subject to essentially the most stress, are made from extraordinarily sturdy chilled chrome cast iron, which withstands even abrasive substances similar to sand in the pumped medium. In addition, the hydraulics had been optimally designed for the operating range using computational fluid dynamics (CFD) to increase efficiency and to get rid of any possibility of solids building up, which can negatively impression performance and lead to costly pump failures. “With the newly developed cutter system, the Alligator pumps can successfully break down all solids within the waste water and transport them away, saving both power and upkeep prices due to their high effectivity and wear-resistant supplies,” Konstantin Pörsch sums up. “This makes them notably appropriate for waste water applications that require excessive supply pressure, but at the same time need to deal with many various sorts of solids.”
HOMA will be presenting the brand new Alligator chopper pump sequence for the primary time at IFAT 2022 in Munich. This and different innovations, such as the maintenance slide with sliding motor mount, will be defined and demonstrated by the HOMA gross sales team in Hall B1 at Stand 429/528.
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