Duty: fed by the influent thru the central group it provides with reaction type or motorized movement thru suitable rotating arms to even distribution of eft1uent onto the trickling filter surface.
Central group: it consists of a fixed part fitted with suitable seals on which the distributor rotates supported by suitable turntable type bearing. The movement is of reaction type or a gearbox can be fitted.
Distributor: it consists of an adequate number of arms determined by the flow and tank diameter fixed to central support carrying the distribution nozzles in bronze of the counterweight type non-clog gable.
The number and size of distribution nozzles is determined to keep head as low as possible and reachable thru a dosing siphon.
Material: as a standard in carbon steel, can be made to any specification.