Simply renovate the existing structures without adding any auxiliary structures;
When the HydroFlap RSK is closed, it tightly adheres to the sealing element to achieve the purpose of water stop and anti back flow;
When the water pressure in the pipeline network rises to a certain value, under the water-power action, the HydroFlap RSK opens for drainage;
When the river is at a high water level, the door panel is tightly closed under the action of water pressure;
Low head loss, suitable for installation in low-lying areas with limited driving head;
Water-power control, no operating costs, reliable operation, and simple maintenance.
