New chopper pump achieves high effectivity without compromising on cutting performance

Problematic solids corresponding to sanitary towels, plastic baggage, textiles and wood are being found increasingly more usually in wastewater. Pumping and sewage therapy vegetation are subsequently increasingly reaching their limits; models get clogged up and break down.
In occasions when low lifecycle costs are enjoying an ever extra necessary function, HOMA Pumpenfabrik offers an energy environment friendly and dependable solution for areas the place a high supply head is required, but at the similar time, a various vary of solids is anticipated: the Alligator chopper pump sequence. The newly developed OC impeller of the Alligator series allows effective operation by way of a strong cutter system. Thanks to the use of highly sturdy chilled chrome forged iron, the main components which are topic to essentially the most stress perform reliably even with abrasive substances corresponding to sand. HOMA shall be presenting the new Alligator chopper pumps for the first time at IFAT 2022 in Munich.
“The lowest potential lifecycle prices 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 power saving and reliable pumps that attain high supply heads with great effectivity.” With its new Alligator chopper pump collection, which will also be obtainable as an explosion-proof model, HOMA has developed a particularly environment friendly response to this demand.
Cutter system shreds all solids with excessive efficiency

“Our goal was to realize excessive supply pressures within the medium move rate vary,” reports Konstantin Pörsch. Without forfeiting pump rate, the improved efficiency meant that a smaller, cheaper and extra vitality saving motor than in other pumps in the identical working vary was enough. To obtain this, HOMA developed a brand new cutter system that effectively shreds and removes giant quantities of diverse solids such as tear-resistant hygiene wipes, plastic bags and wood, which also get into the wastewater through floor water. The specially designed impeller has integrated cutters and a sharp-edged radius of 10 mm to the damage plate, which can be outfitted with its own cutter. This design permits the two central elements to work together to catch solids, break them down and finally take away them from the suction space through integrated grooves within the put on plate.
To allow higher effectivity without compromising on cutting efficiency, the blades of the impeller also curve strongly backwards. As a result, in the 50 Hz model, a move fee of as much as one hundred thirty m³/h and a supply head of up to 57 m can be achieved with energy consumption of 5 to 12 kW. In the 60 Hz model, with energy consumption of eight to twenty kW, a circulate price of as a lot as one hundred forty m³/h and a supply head of as much as eighty two m are possible. The suction cover mounted on the pump housing can also be used to regulate the chopping hole between the impeller and the damage plate with assistance from six set screws. “ เกจวัดแรงดัน of our new Alligator sequence, which is on the market for moist properly installation as properly as dry set up, is its great efficiency and effective cutter system, coupled with an extended service life,” provides Konstantin Pörsch.
Low lifecycle prices because of wear-resistant design

In order to realize not only the absolute best effectivity values in the operating range required for these sorts of wastewater purposes, but additionally to reduce lifecycle prices general, HOMA attaches nice significance to low-maintenance operation along with effectivity. The impeller and wear plate, which are the elements topic to the most stress, are made from extraordinarily sturdy chilled chrome forged iron, which withstands even abrasive substances such as sand within the pumped medium. In addition, the hydraulics had been optimally designed for the working range utilizing computational fluid dynamics (CFD) to increase efficiency and to remove any possibility of solids building up, which may negatively impact efficiency and lead to pricey pump failures. “With the newly developed cutter system, the Alligator pumps can effectively break down all solids within the waste water and transport them away, saving both vitality and maintenance prices because of their excessive effectivity and wear-resistant materials,” Konstantin Pörsch sums up. “This makes them particularly suitable for waste water functions that require excessive delivery pressure, however at the same time have to take care of many alternative sorts of solids.”

HOMA might be presenting the model new Alligator chopper pump collection for the first time at IFAT 2022 in Munich. This and different improvements, corresponding to the maintenance slide with sliding motor mount, shall be explained and demonstrated by the HOMA gross sales staff in Hall B1 at Stand 429/528.

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