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

Problematic solids such as sanitary towels, plastic baggage, textiles and wood are being discovered increasingly often in wastewater. Pumping and sewage therapy crops are due to this fact increasingly reaching their limits; models get clogged up and break down.
In times when low lifecycle costs are taking half in an ever more important role, HOMA Pumpenfabrik presents an power environment friendly and reliable answer for areas where a high delivery head is required, but at the similar time, a various vary of solids is anticipated: the Alligator chopper pump series. The newly developed OC impeller of the Alligator collection enables effective operation via a robust cutter system. Thanks to using extremely sturdy chilled chrome forged iron, the primary parts that are topic to the most stress perform reliably even with abrasive substances such as sand. HOMA might be presenting the new Alligator chopper pumps for the primary time at IFAT 2022 in Munich.
“The lowest attainable lifecycle costs have gotten more and more necessary in water and wastewater purposes,” explains Konstantin Pörsch, Project Manager within the Design & Development division at HOMA Pumpenfabrik GmbH. “There is a rising demand for vitality saving and dependable pumps that attain excessive delivery heads with nice effectivity.” With เพรสเชอร์เกจ4นิ้ว , which will also be available as an explosion-proof version, HOMA has developed a very efficient response to this demand.
Cutter system shreds all solids with excessive efficiency
“Our goal was to realize high delivery pressures in the medium move rate range,” reports Konstantin Pörsch. Without forfeiting pump rate, the improved efficiency meant that a smaller, cheaper and more power saving motor than in other pumps in the identical working range was adequate. To achieve this, HOMA developed a new cutter system that successfully shreds and removes large quantities of numerous solids such as tear-resistant hygiene wipes, plastic baggage and wooden, which additionally get into the wastewater through floor water. The specially designed impeller has built-in 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 components to work together 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 allow higher effectivity with out compromising on cutting efficiency, the blades of the impeller additionally curve strongly backwards. As a outcome, in the 50 Hz model, a flow price of up to a hundred thirty m³/h and a supply head of as a lot as 57 m may be achieved with power consumption of 5 to 12 kW. In the 60 Hz model, with power consumption of eight to twenty kW, a circulate rate of as much as a hundred and forty m³/h and a supply head of up to eighty two m are attainable. The suction cover mounted on the pump housing may also be used to regulate the chopping gap between the impeller and the damage plate with the help of six set screws. “The power of our new Alligator sequence, which is available for wet nicely set up as well as dry set up, is its great effectivity and efficient cutter system, coupled with a protracted service life,” provides Konstantin Pörsch.
Low lifecycle costs thanks to wear-resistant design
In order to attain not solely the very best efficiency values in the working vary required for these sorts of wastewater applications, but in addition to scale back lifecycle costs general, HOMA attaches great importance to low-maintenance operation in addition to efficiency. The impeller and put on plate, which are the parts topic to essentially the most stress, are made of extraordinarily sturdy chilled chrome cast iron, which withstands even abrasive substances such as sand within the pumped medium. In addition, the hydraulics were optimally designed for the working vary using computational fluid dynamics (CFD) to extend efficiency and to remove any possibility of solids build up, which can negatively impact efficiency 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 vitality and upkeep prices due to their high efficiency and wear-resistant materials,” Konstantin Pörsch sums up. “This makes them particularly suitable for waste water applications that require high supply stress, however on the similar time have to deal with many alternative sorts of solids.”
HOMA shall be presenting the new Alligator chopper pump collection for the first time at IFAT 2022 in Munich. This and other improvements, similar to the upkeep slide with sliding motor mount, will be defined and demonstrated by the HOMA sales staff in Hall B1 at Stand 429/528.

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