New chopper pump achieves excessive effectivity without compromising on chopping efficiency

Ready as sanitary towels, plastic bags, textiles and wooden are being found more and more often in wastewater. Pumping and sewage remedy crops are due to this fact more and more reaching their limits; units get clogged up and break down.
In times when low lifecycle prices are enjoying an ever more important function, HOMA Pumpenfabrik provides an vitality environment friendly and reliable resolution for areas where a excessive delivery head is required, but at the identical time, a various range of solids is expected: the Alligator chopper pump collection. The newly developed OC impeller of the Alligator sequence enables efficient operation via a powerful cutter system. Thanks to using extremely durable chilled chrome cast iron, the main components which might be topic to probably the most stress perform reliably even with abrasive substances corresponding to sand. HOMA might be presenting the brand new Alligator chopper pumps for the first time at IFAT 2022 in Munich.
“The lowest possible lifecycle costs are becoming increasingly essential in water and wastewater purposes,” explains Konstantin Pörsch, Project Manager in the Design & Development division at HOMA Pumpenfabrik GmbH. “There is a rising demand for energy saving and dependable pumps that attain excessive supply heads with great effectivity.” With its new Alligator chopper pump collection, which will also be available as an explosion-proof model, HOMA has developed a very environment friendly response to this demand.
Cutter system shreds all solids with excessive efficiency
“Our aim was to achieve excessive supply pressures in the medium flow price vary,” reports Konstantin Pörsch. Without forfeiting pump fee, the improved effectivity meant that a smaller, cheaper and extra energy saving motor than in different pumps in the identical operating range was enough. To obtain this, HOMA developed a model new cutter system that effectively shreds and removes massive quantities of numerous solids such as tear-resistant hygiene wipes, plastic bags and wooden, which additionally get into the wastewater via floor water. The specially designed impeller has integrated cutters and a sharp-edged radius of 10 mm to the wear plate, which is also equipped with its own cutter. This design permits the 2 central parts to work collectively to catch solids, break them down and finally remove them from the suction space via integrated grooves in the put on plate.
To enable greater efficiency with out compromising on cutting efficiency, the blades of the impeller also curve strongly backwards. As a end result, in the 50 Hz version, a flow fee of up to a hundred thirty m³/h and a supply head of up to 57 m could be achieved with energy consumption of 5 to 12 kW. In the 60 Hz version, with energy consumption of eight to 20 kW, a flow rate of as a lot as one hundred forty m³/h and a supply head of as a lot as eighty two m are attainable. The suction cover mounted on the pump housing may additionally be used to adjust the slicing hole between the impeller and the wear plate with assistance from six set screws. “ Steps of our new Alligator collection, which is on the market for wet nicely set up as well as dry set up, is its nice efficiency and efficient cutter system, coupled with a long service life,” adds Konstantin Pörsch.
Low lifecycle prices thanks to wear-resistant design
In order to realize not only the absolute best effectivity values within the working vary required for these sorts of wastewater functions, but in addition to cut back lifecycle prices total, HOMA attaches nice importance to low-maintenance operation in addition to efficiency. The impeller and put on plate, which are the components subject to essentially the most stress, are manufactured from extraordinarily durable chilled chrome cast iron, which withstands even abrasive substances corresponding to sand within the pumped medium. In addition, the hydraulics have been optimally designed for the operating vary using computational fluid dynamics (CFD) to extend efficiency and to get rid of any possibility of solids increase, which may negatively impression performance and result in pricey 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 each power and maintenance prices due to their high effectivity and wear-resistant materials,” Konstantin Pörsch sums up. “This makes them notably suitable for waste water purposes that require excessive supply pressure, however at the same time should deal with many various kinds of solids.”
HOMA will be presenting the new Alligator chopper pump series for the primary time at IFAT 2022 in Munich. This and different innovations, such as the upkeep slide with sliding motor mount, will be explained and demonstrated by the HOMA sales staff in Hall B1 at Stand 429/528.

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