New chopper pump achieves high efficiency without compromising on cutting performance

Problematic solids similar to sanitary towels, plastic baggage, textiles and wooden are being found increasingly typically in wastewater. Pumping and Template are due to this fact more and more reaching their limits; models get clogged up and break down.
In instances when low lifecycle prices are playing an ever more necessary function, HOMA Pumpenfabrik provides an energy environment friendly and reliable solution for areas the place a excessive delivery head is required, however on the similar time, a diverse range of solids is expected: the Alligator chopper pump sequence. The newly developed OC impeller of the Alligator collection enables effective operation via a powerful cutter system. Thanks to the usage of extremely durable chilled chrome cast iron, the primary elements that are subject to probably the most stress perform reliably even with abrasive substances such as sand. HOMA might be presenting the model new Alligator chopper pumps for the primary time at IFAT 2022 in Munich.
“The lowest attainable lifecycle costs are becoming more and more necessary in water and wastewater applications,” explains Konstantin Pörsch, Project Manager within the Design & Development department at HOMA Pumpenfabrik GmbH. “There is a rising demand for vitality saving and dependable pumps that reach high delivery heads with great efficiency.” With its new Alligator chopper pump sequence, which may even be obtainable as an explosion-proof version, HOMA has developed a particularly efficient response to this demand.
Cutter system shreds all solids with high efficiency
“Our goal was to attain high supply pressures in the medium circulate fee vary,” stories Konstantin Pörsch. Without forfeiting pump fee, the improved efficiency meant that a smaller, cheaper and extra vitality saving motor than in other pumps in the identical operating range was sufficient. To obtain this, HOMA developed a new cutter system that successfully shreds and removes giant quantities of numerous solids corresponding to tear-resistant hygiene wipes, plastic baggage and wooden, which also get into the wastewater by way of surface water. The specifically designed impeller has built-in cutters and a sharp-edged radius of 10 mm to the damage plate, which can be equipped with its personal cutter. This design permits the 2 central components to work collectively to catch solids, break them down and in the end remove them from the suction area through integrated grooves in the put on plate.
To enable greater efficiency without compromising on chopping performance, the blades of the impeller also curve strongly backwards. As a outcome, within the 50 Hz model, a circulate fee of as much as one hundred thirty m³/h and a supply head of up to 57 m may be achieved with power consumption of 5 to 12 kW. In the 60 Hz version, with power consumption of eight to twenty kW, a flow price of as much as a hundred and forty m³/h and a delivery head of as a lot as 82 m are attainable. The suction cowl mounted on the pump housing can additionally be used to adjust the cutting gap between the impeller and the damage plate with the help of six set screws. “The power of our new Alligator series, which is on the market for moist well installation as well as dry installation, is its great efficiency and efficient cutter system, coupled with a protracted service life,” adds Konstantin Pörsch.
Low lifecycle costs because of wear-resistant design
In order to realize not solely the greatest possible efficiency values within the working vary required for these kinds of wastewater purposes, but additionally to scale back lifecycle prices overall, HOMA attaches great significance to low-maintenance operation in addition to effectivity. The impeller and wear plate, that are the components subject to essentially the most stress, are made from extraordinarily durable chilled chrome cast iron, which withstands even abrasive substances similar to sand in the pumped medium. In addition, the hydraulics were optimally designed for the operating range utilizing computational fluid dynamics (CFD) to increase effectivity and to remove any risk of solids build up, which can negatively impact performance and result in expensive 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 power and upkeep costs due to their excessive effectivity and wear-resistant materials,” Konstantin Pörsch sums up. “This makes them significantly suitable for waste water purposes that require high delivery pressure, but at the similar time need to deal with many various kinds of solids.”
HOMA will be presenting the new Alligator chopper pump sequence for the primary time at IFAT 2022 in Munich. This and different improvements, such as the upkeep slide with sliding motor mount, shall be defined and demonstrated by the HOMA sales team in Hall B1 at Stand 429/528.

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