Problematic solids corresponding to sanitary towels, plastic baggage, textiles and wooden are being discovered increasingly usually in wastewater. Pumping and sewage treatment crops are subsequently increasingly reaching their limits; units get clogged up and break down.
In times when low lifecycle costs are enjoying an ever extra necessary role, HOMA Pumpenfabrik offers an power environment friendly and reliable resolution for areas where a high delivery head is required, however on the similar time, a diverse vary of solids is expected: the Alligator chopper pump collection. The newly developed OC impeller of the Alligator sequence allows efficient operation through a strong cutter system. Thanks to the use of extremely sturdy chilled chrome cast iron, the primary elements that are topic to essentially the most stress perform reliably even with abrasive substances similar to sand. HOMA shall be presenting the new Alligator chopper pumps for the first 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 in the Design & Development division at HOMA Pumpenfabrik GmbH. “There is a growing demand for energy saving and reliable pumps that attain high delivery heads with nice effectivity.” With its new Alligator chopper pump collection, 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 high effectivity

“Our goal was to achieve excessive delivery pressures within the medium move price vary,” stories Konstantin Pörsch. Without forfeiting pump price, the improved efficiency meant that a smaller, cheaper and extra power saving motor than in other pumps in the same operating vary was enough. To achieve this, HOMA developed a model new cutter system that effectively shreds and removes large portions of diverse solids corresponding to tear-resistant hygiene wipes, plastic baggage and wood, which also get into the wastewater via surface water. The specifically designed impeller has integrated cutters and a sharp-edged radius of 10 mm to the wear plate, which can also be outfitted with its own cutter. This design allows the two central parts to work collectively to catch solids, break them down and ultimately remove them from the suction space through built-in grooves in the put on plate.
To enable greater effectivity with out compromising on cutting performance, the blades of the impeller additionally curve strongly backwards. As a end result, within the 50 Hz model, a flow fee of as a lot as 130 m³/h and a supply head of up to fifty seven m can be achieved with power consumption of 5 to 12 kW. In the 60 Hz model, with energy consumption of eight to twenty kW, a flow price of up to a hundred and forty m³/h and a delivery head of as a lot as eighty two m are possible. The suction cowl mounted on the pump housing may also be used to adjust the chopping hole between the impeller and the wear plate with the help of six set screws. “The energy of our new Alligator sequence, which is on the market for wet well set up as well as dry set up, is its nice effectivity and effective cutter system, coupled with an extended service life,” provides Konstantin Pörsch.
เกจวัดแรงดัน to wear-resistant design

In order to realize not only the finest possible effectivity 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 along with effectivity. The impeller and put on plate, that are the elements subject to essentially the most stress, are made from extraordinarily sturdy chilled chrome forged iron, which withstands even abrasive substances corresponding to sand within the pumped medium. In addition, the hydraulics were optimally designed for the working vary utilizing computational fluid dynamics (CFD) to increase effectivity and to get rid of any possibility of solids build up, which can negatively influence performance and lead to costly 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 both vitality and maintenance costs because of their excessive efficiency and wear-resistant materials,” Konstantin Pörsch sums up. “This makes them particularly suitable for waste water applications that require high supply pressure, however on the same time should deal with many alternative kinds of solids.”

HOMA might be presenting the new Alligator chopper pump sequence for the primary time at IFAT 2022 in Munich. This and different improvements, similar to the maintenance slide with sliding motor mount, will be explained and demonstrated by the HOMA gross sales group in Hall B1 at Stand 429/528.