- The PF belt filter consists of a continuous segmented filter belt fitted with a technical mesh.
- The belt filter is designed for fine filtration of pre-treated water in heating plants, power plants, water treatment facilities, and    certain wastewater treatment plants.
- The filter operates in automatic mode with the option of manual control. The start and stop of the belt movement are based on the difference in water levels inside and outside the filtration area, or are time-controlled.
- Maintenance work is carried out in the above-ground area of the belt.