Rainwater flow regulators called DRP by NavoTech, due to the irregular nature of rainfall and the related changes in flow, are mainly used in the construction of rainwater drainage systems with water retention and storage systems, in which the sewage system and installed WOD-KAN devices may be periodically exposed to hydraulic overload, which may cause them to malfunction or damage and thus harm the environment.
DRP flow regulators can be installed in ROK retention tanks, NT-BAS drainage chamber systems, and overflow systems.