New chopper pump achieves high effectivity with out compromising on chopping efficiency

Problematic solids similar to sanitary towels, plastic baggage, textiles and wood are being found more and more often in wastewater. Pumping and sewage therapy vegetation are therefore more and more reaching their limits; models get clogged up and break down.
In times when low lifecycle prices are playing an ever extra necessary function, HOMA Pumpenfabrik offers an energy environment friendly and reliable answer for areas where a excessive delivery head is required, but at the similar time, a various range of solids is anticipated: the Alligator chopper pump series. The newly developed OC impeller of the Alligator collection allows efficient operation by way of a powerful cutter system. Thanks to the usage of highly durable chilled chrome cast iron, the primary elements that are topic to essentially 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 attainable lifecycle costs are becoming more and more essential in water and wastewater purposes,” explains Konstantin Pörsch, Project Manager in the Design & Development division at HOMA Pumpenfabrik GmbH. “There is a growing demand for power saving and dependable pumps that reach excessive supply heads with nice effectivity.” With its new Alligator chopper pump sequence, which will also be out there as an explosion-proof model, HOMA has developed a particularly efficient response to this demand.
Cutter system shreds all solids with excessive effectivity
“Our goal was to attain excessive supply pressures in the medium flow price range,” reports Konstantin Pörsch. Without forfeiting pump price, the improved efficiency meant that a smaller, cheaper and extra vitality saving motor than in different pumps in the identical working vary was sufficient. To achieve this, HOMA developed a new cutter system that successfully shreds and removes massive portions of numerous solids corresponding to tear-resistant hygiene wipes, plastic bags and wood, which also get into the wastewater through surface water. The specifically designed impeller has built-in cutters and a sharp-edged radius of 10 mm to the wear plate, which can also be outfitted with its personal cutter. This design permits the two central components to work collectively to catch solids, break them down and finally remove them from the suction area through built-in grooves in the wear plate.
To enable larger effectivity with out compromising on cutting performance, the blades of the impeller additionally curve strongly backwards. As a outcome, in the 50 Hz model, a move fee of as much as 130 m³/h and a delivery 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 8 to twenty kW, a circulate price of as a lot as 140 m³/h and a delivery head of up to eighty two m are potential. The suction cover mounted on the pump housing may additionally be used to adjust the slicing gap between the impeller and the damage plate with the assist of six set screws. “The energy of our new Alligator collection, which is on the market for moist nicely installation in addition to dry set up, is its great efficiency and efficient cutter system, coupled with a long service life,” provides Konstantin Pörsch.
Low lifecycle costs because of wear-resistant design
In order to achieve not only the very best efficiency values in the operating range required for these sorts of wastewater applications, but in addition to reduce back lifecycle costs general, HOMA attaches great significance to low-maintenance operation in addition to efficiency. The impeller and put on plate, that are the elements subject to essentially the most stress, are made of extremely sturdy chilled chrome forged iron, which withstands even abrasive substances similar to sand within the pumped medium. In addition, the hydraulics had been optimally designed for the working vary using computational fluid dynamics (CFD) to increase effectivity and to eliminate any risk of solids increase, which may negatively influence performance and lead to expensive pump failures. “With เกจวัดความดันpressuregauge 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 costs because of their high effectivity and wear-resistant materials,” Konstantin Pörsch sums up. “This makes them particularly appropriate for waste water functions that require excessive supply strain, however on the identical time have to deal with many different kinds of solids.”
HOMA will be presenting the model new Alligator chopper pump sequence for the first time at IFAT 2022 in Munich. This and other innovations, corresponding to the maintenance slide with sliding motor mount, might be explained and demonstrated by the HOMA gross sales team in Hall B1 at Stand 429/528.

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