If one has calculated how many cubic meters of air is needed to achieve the desired O2 rate within the desired time, the matching air pump can be selected. This may be a side channel blower, rotary vane pump, diaphragm pump or claw pump. The choice is mainly determined by the combination of pressure and flow rate. The operating pressure is calculated by adding the hydrostatic pressure and the pressure loss.
Pressure loss occurs over the aerator and piping system due to resistance. All this together is the total operating pressure. Pressure loss is loss of energy. Therefore, Oxydent has developed aerators which have a minimum of pressure loss (+/- 10 Mbar) and dimensions the piping system in such a way that the pressure drop remains limited.