Disposal pipe

The disposal pipe should be laid with a continuous upward gradient from the grease separator to the handover point for the disposal vehicle. Where the pipe changes direction using 90° bends, these should, where possible, be fitted with a large radius. Depending on the system configuration, disposal pipes must be designed as pressure or suction pipes in the required pressure class. Tension-resistant connections must be used for the individual pipes and fittings. The disposal pipes should be laid with a consistent diameter up to the transfer point. The suction pipe must have a nominal size of at least DN 65. The choice of pipe material for the disposal pipe should be based on the constituents of the wastewater (extremely high solids content), specific operating conditions (overpressure/underpressure) and resistance (fatty acids).