New chopper pump achieves excessive effectivity with out compromising on cutting performance

Problematic solids corresponding to sanitary towels, plastic bags, textiles and wooden are being discovered increasingly usually in wastewater. Pumping and sewage treatment vegetation are therefore more and more reaching their limits; units get clogged up and break down.
In times when low lifecycle prices are enjoying an ever more necessary role, HOMA Pumpenfabrik provides an power environment friendly and dependable solution for areas where a excessive supply head is required, but at the same time, a diverse vary of solids is expected: the Alligator chopper pump series. The newly developed OC impeller of the Alligator collection allows effective operation through a powerful cutter system. Illegal to the utilization of extremely durable chilled chrome forged iron, the main parts that are subject to the most stress perform reliably even with abrasive substances such as sand. HOMA might be presenting the brand new Alligator chopper pumps for the first time at IFAT 2022 in Munich.
Replicate are becoming more and more essential 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 power saving and dependable pumps that attain high supply heads with nice effectivity.” With its new Alligator chopper pump collection, which may also be available as an explosion-proof version, HOMA has developed a particularly efficient response to this demand.
Cutter system shreds all solids with high effectivity
“Our aim was to realize excessive supply pressures within the medium circulate rate vary,” reports Konstantin Pörsch. Without forfeiting pump rate, the improved efficiency meant that a smaller, cheaper and extra energy saving motor than in other pumps in the identical operating range was sufficient. To achieve this, HOMA developed a model new cutter system that effectively shreds and removes large quantities of various solids corresponding to tear-resistant hygiene wipes, plastic luggage and wooden, which also 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 can also be equipped with its own cutter. This design allows the two central elements to work together to catch solids, break them down and finally remove them from the suction area via integrated grooves in the put on plate.
To enable greater efficiency with out compromising on slicing efficiency, the blades of the impeller also curve strongly backwards. As a result, within the 50 Hz model, a move fee of up to a hundred thirty m³/h and a supply head of as much as 57 m could be achieved with energy consumption of 5 to 12 kW. In the 60 Hz version, with power consumption of eight to twenty kW, a move price of up to a hundred and forty m³/h and a delivery head of up to eighty two m are attainable. The suction cover mounted on the pump housing can also be used to adjust the cutting gap between the impeller and the damage plate with the assist of six set screws. “The energy of our new Alligator sequence, which is on the market for moist properly set up as properly as dry installation, is its nice efficiency and effective cutter system, coupled with a long service life,” adds Konstantin Pörsch.
Low lifecycle costs because of wear-resistant design
In order to achieve not solely the very best efficiency values within the operating range required for these sorts of wastewater purposes, but in addition to reduce lifecycle costs overall, HOMA attaches nice importance to low-maintenance operation along with effectivity. The impeller and put on plate, which are the elements topic to the most stress, are made from extremely durable chilled chrome cast iron, which withstands even abrasive substances such as sand in the pumped medium. In addition, the hydraulics had been optimally designed for the working vary utilizing computational fluid dynamics (CFD) to extend effectivity and to eliminate any chance of solids build up, which may negatively impact efficiency and lead to pricey pump failures. “With the newly developed cutter system, the Alligator pumps can successfully break down all solids in the waste water and transport them away, saving each power and maintenance prices thanks to their high efficiency and wear-resistant supplies,” Konstantin Pörsch sums up. “This makes them notably suitable for waste water applications that require excessive delivery strain, but at the same time have to take care of many different sorts of solids.”
HOMA might be presenting the model new Alligator chopper pump sequence for the primary time at IFAT 2022 in Munich. This and different innovations, such as the upkeep slide with sliding motor mount, might be explained and demonstrated by the HOMA sales group in Hall B1 at Stand 429/528.

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