Waste water drain used in hospitals has drain body with tightly fitted circular top edge and water supply unit arranged and fitted on interior side of top edge for flushing interior of drain body

摘要

The drain (1) has a drain body (3) with a tightly fitted circular top edge. The top edge partly projects into the drain body. The drain body and top edge are made of mineral material. A water supply unit is arranged and fitted on the interior side of the top edge. The water supply unit has nozzles for releasing water to flush the inside of the drain body.