Problematic solids such as sanitary towels, plastic baggage, textiles and wood are being discovered increasingly typically 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 more essential role, HOMA Pumpenfabrik offers an energy efficient and reliable resolution for areas where a high delivery head is required, but at the identical time, a diverse vary of solids is predicted: the Alligator chopper pump sequence. diaphragm seal developed OC impeller of the Alligator series enables efficient operation by way of a powerful cutter system. Thanks to the use of highly durable chilled chrome forged iron, the primary components which might be 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 primary time at IFAT 2022 in Munich.
“The lowest possible lifecycle prices are becoming increasingly 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 energy saving and reliable pumps that reach high supply heads with nice effectivity.” With its new Alligator chopper pump collection, which may even be available as an explosion-proof model, HOMA has developed a particularly efficient response to this demand.
Cutter system shreds all solids with high effectivity

“Our objective was to achieve high delivery pressures within the medium circulate fee range,” reviews Konstantin Pörsch. Without forfeiting pump fee, the improved efficiency meant that a smaller, cheaper and extra energy saving motor than in different pumps in the same working range was sufficient. To obtain this, HOMA developed a new cutter system that effectively shreds and removes giant portions of diverse solids corresponding to tear-resistant hygiene wipes, plastic baggage and wooden, which additionally get into the wastewater via floor water. pressure gauge 10 bar designed impeller has built-in cutters and a sharp-edged radius of 10 mm to the wear plate, which is also outfitted with its own cutter. This design allows the two central parts to work collectively to catch solids, break them down and in the end take away them from the suction area through built-in grooves in the wear plate.
To enable higher efficiency with out compromising on chopping efficiency, the blades of the impeller also curve strongly backwards. As a result, within the 50 Hz model, a circulate fee of up to 130 m³/h and a supply head of up to 57 m may be achieved with energy consumption of 5 to 12 kW. In the 60 Hz model, with power consumption of eight to 20 kW, a circulate fee of as much as one hundred forty m³/h and a delivery head of as much as 82 m are potential. The suction cowl mounted on the pump housing can additionally be used to adjust the slicing gap between the impeller and the wear plate with the help of six set screws. “The strength of our new Alligator series, which is out there for wet properly installation in addition to dry set up, is its nice efficiency and effective cutter system, coupled with a long service life,” provides Konstantin Pörsch.
Low lifecycle prices due to wear-resistant design

In order to achieve not only the finest possible effectivity values within the operating range required for these kinds of wastewater functions, but also to scale back lifecycle costs total, HOMA attaches nice importance to low-maintenance operation along with efficiency. The impeller and wear plate, which are the components topic to probably the most stress, are made from extraordinarily durable chilled chrome forged iron, which withstands even abrasive substances such as sand in the pumped medium. In addition, the hydraulics had been optimally designed for the working range using computational fluid dynamics (CFD) to extend efficiency and to remove any risk of solids increase, which may negatively influence performance and lead to 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 energy and upkeep prices because of their high efficiency and wear-resistant supplies,” Konstantin Pörsch sums up. “This makes them significantly suitable for waste water applications that require excessive supply stress, however on the similar time have to take care of many different sorts of solids.”

HOMA will be presenting the new Alligator chopper pump collection for the first time at IFAT 2022 in Munich. This and different innovations, corresponding to the upkeep slide with sliding motor mount, will be explained and demonstrated by the HOMA sales staff in Hall B1 at Stand 429/528.