Sizing a continuous self-cleaning filter is a balance of filtration rate, bed depth, media grading and air supply — matched to the solids load and the treated-water target.
Design filtration rate (typically 5–15 m/h depending on duty) sets the plan area for a given flow; lower rates suit demanding polishing duties.
Deeper beds extend the filtration path and solids-holding capacity, supporting higher rates and heavier loads.
Single deep vessels or multi-chamber units are selected for the available plot and the required throughput.
Sand grade and uniformity are chosen for the target particle size and the airlift wash; finer media polish harder, coarser media handle higher solids.
Sealed vessels allow operation as a carbon (GAC) filter, for example polishing ozonated water.
The low-pressure blower is sized to the airlift duty and number of chambers for reliable continuous washing.
Open, pressureless vessels need no filtration pump — only the low-energy wash air — cutting energy use substantially.
Closed pressure vessels suit in-line process duty where downstream pressure must be retained.
Reynolds & Bauhm DF-series modules and custom sizes are configured to the calculated duty.
Reynolds & Bauhm sizes and supplies continuous self-cleaning filters matched to your water quality, duty and footprint.
Our expertise spans multiple industries with sector-specific water treatment solutions.