Zenit UNIQA Series Chopper Pumps

ZENIT

Zenit has expanded its UNIQA series by developing models equipped with high-efficiency engines specifically designed for heavily contaminated wastewater and a special Chopper hydraulic system.

Thanks to their efficient shredding system, these pumps can cut and discharge all biodegradable solids in wastewater, thus ensuring uninterrupted and reliable operation.

Wastewater treatment plants tend to accumulate high amounts of solid matter, including large-sized solid waste. This can cause impeller clogging and pipe blockage, significantly reducing the efficiency of the pumping station.

The use of filter grids is not an effective solution because in environments with high volumes of contaminated water, continuous monitoring and frequent cleaning of collected solid waste are required.

Technical Information

  • Maximum flow rate: 1020 m3/h
  • Maximum pressure: 83 mSS
  • Connection Size: DN50-DN200
  • Free Passage: 80mm
  • Material: IE3 efficiency class Class H motor
  • Motor Power: 1.5-75 kW, 2-12 poles, WET and DRY versions.

Features

  • Standard grooved wheels are made of hard cast iron.
  • The channeled wheel with sharp-edged blades is made from a new material we call “Hard Cast Iron.” This material is more durable than the commonly used gray cast iron and has a hardness of 450-500 HB.
  • The cutting system consists of a blade made of AISI 431 stainless steel that slides over gear blades.
  • AISI 431 steel is an excellent stainless steel material with approximately 1.2% carbon content, a hardness of 300 HB, and high shear strength.
  • Chopper system capable of cutting particles of all shapes and sizes.
  • Hydraulic efficiency is only 3-5% lower compared to a standard channel impeller.
  • The system’s core consists of a robust, sharp-edged steel blade that slides over the blades of a channeled impeller. This structure allows it to cut and discharge solid materials of all shapes and materials.
  • The ACS (Anti-Clogging System) consists of a spiral channel opened to the appropriate depth in the diffuser plate.
  • This system prevents impeller clogging even when working with heavily soiled fluids, allows fibrous materials to be pulled out or loosened, and ensures the hydraulic system is resistant to clogging.
  • The ATEX version is designed for use in potentially explosive environments.
  • This ATEX version includes a moisture probe as standard for detecting water in the mechanical seal oil reservoir.
  • One or more probes can be installed in the engine, terminal box, or oil reservoir to detect the presence of water or moisture.
  • Additionally, the bearing can be equipped with vibration and temperature sensors.