Problematic solids corresponding to sanitary towels, plastic luggage, textiles and wood are being found increasingly more often in wastewater. Pumping and sewage therapy vegetation are therefore increasingly reaching their limits; units get clogged up and break down.
In instances when low lifecycle prices are playing an ever extra essential role, HOMA Pumpenfabrik provides an energy efficient and reliable answer for areas the place a high supply head is required, but on the similar time, a various vary of solids is expected: the Alligator chopper pump collection. The newly developed OC impeller of the Alligator series permits efficient operation through a strong cutter system. Thanks to the utilization of highly sturdy chilled chrome cast iron, the main elements that are topic to essentially the most stress carry out reliably even with abrasive substances corresponding to sand. HOMA will be presenting the new Alligator chopper pumps for the first time at IFAT 2022 in Munich.
“The lowest potential lifecycle costs are becoming more and more necessary in water and wastewater functions,” explains Konstantin Pörsch, Project Manager within 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 great efficiency.” With its new Alligator chopper pump series, which may also be obtainable as an explosion-proof model, HOMA has developed a very efficient response to this demand.
Cutter system shreds all solids with excessive efficiency

“Our goal was to achieve excessive delivery pressures within the medium circulate fee range,” stories Konstantin Pörsch. Without forfeiting pump price, the improved efficiency meant that a smaller, cheaper and more vitality saving motor than in different pumps in the same working range was sufficient. To achieve this, HOMA developed a new cutter system that successfully shreds and removes massive portions of diverse solids similar to tear-resistant hygiene wipes, plastic luggage and wooden, which also get into the wastewater by way of surface water. The specifically designed impeller has integrated cutters and a sharp-edged radius of 10 mm to the wear and tear plate, which can be equipped with its own cutter. This design allows the 2 central elements to work together to catch solids, break them down and ultimately take away them from the suction area through built-in grooves in the put on plate.
To allow greater efficiency with out compromising on slicing efficiency, the blades of the impeller additionally curve strongly backwards. As a outcome, within the 50 Hz version, a move price of up to 130 m³/h and a supply head of as much as 57 m could be achieved with power consumption of 5 to 12 kW. In the 60 Hz version, with power consumption of 8 to twenty kW, a circulate fee of up to a hundred and forty m³/h and a supply head of up to 82 m are possible. The suction cowl mounted on the pump housing can be used to regulate the slicing hole between the impeller and the wear plate with the help of six set screws. “The energy of our new Alligator series, which is on the market for wet well set up as nicely as dry set up, is its nice efficiency and efficient cutter system, coupled with a long service life,” adds Konstantin Pörsch.
Low lifecycle prices due to wear-resistant design

In order to realize not only the absolute best efficiency values within the working vary required for these sorts of wastewater functions, but in addition to minimize back lifecycle prices general, HOMA attaches nice significance to low-maintenance operation in addition to effectivity. The impeller and put on plate, that are the components subject to essentially the most stress, are manufactured from extraordinarily durable chilled chrome cast iron, which withstands even abrasive substances such as sand within the pumped medium. In addition, the hydraulics have been optimally designed for the operating range using computational fluid dynamics (CFD) to increase efficiency and to get rid of any risk of solids building up, which may negatively impression performance and lead to expensive 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 energy and upkeep costs thanks to their high effectivity and wear-resistant supplies,” Konstantin Pörsch sums up. “This makes them particularly suitable for waste water purposes that require high supply strain, but on the identical time have to deal with many various sorts of solids.”

HOMA shall be presenting เครื่องมือที่ใช้ในการวัดความดัน for the first time at IFAT 2022 in Munich. This and different improvements, such as the upkeep slide with sliding motor mount, will be defined and demonstrated by the HOMA sales group in Hall B1 at Stand 429/528.
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