Inspection pit with flow limiter Rigolimit V

 

 

As soon as infiltration is impossible or the connected flow is too high, buffering with delayed drainage is switched over. A well with an integrated swirl valve, a flow limiter, has been developed especially for this purpose. The RigoLimit V can be used to discharge the flow rate of rainwater from overflow basins, buffer basins and other buffer installations with a preset maximum flow rate and thus prevent nuisance. The special thing about the RigoLimit V is that the well body itself serves as a swirl valve element. The tangential flow of water in the shaft body creates a vortex that self-regulating reduces the discharge due to hydraulic resistance. The large diameter of the restriction cover minimizes the risk of clogging. The energy and cleaning effect of the water vortex also prevent the drain from clogging. When the drain requirements change, for example when the catchment area is expanded, the used restrictor cover can be replaced without any problem and the drainage capacity can be adjusted afterwards.