Rainwater cistern PLATIN XXL

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A detention cistern retains the rainwater and drains it into the sewer at a delayed speed. GRAF cistern for rainwater detention and sewer relief. To guarantee retention of rainwater, a delayed drain is fitted in the sewer with a delay of 0.05 to 16 l/sec. depending on the customer’s specifications. In the event of heavy rainfall, the water level in the cistern rises above this level and is drained into the sewer at a delayed speed using a floating drain choke. This relieves the sewer and the treatment works. The water level can rise to the emergency overflow and sink slowly back down again after the rain. We also construct and supply individual, special solutions.   Advantages Platin XXL flat tank: Rotating tank dome to easily align the connecting lines Available with a second tank dome as an option Suitable for HGV loading up to a vehicle weight of 30 t (66138 lbs) Flexible connection up to DN 300 (12") Connection openings with prefitted DN 150 (6") lip seals Tank height of just 125 cm (4' 1") High-quality, integrated DN 150 (6") filter technology Dome opening with stainless steel profile for precision fit and secure mounting Connection fitting of up to DN 200 (8"), on tank dome of up to DN 300