Hydraulic device for e.g. discharging of waste water from waste water drain into natural environment, has flap whose line pivots between upright and horizontal positions via balancing zone by closing stoppers

摘要

The device has a box (1) opened with a water-tight flap (2), where a line (13) of the flap pivots between an upright position and a horizontal position via a balancing zone (4) by closing closing stoppers (11). The box comprises a flow guidance plate (3) that comprises an opening (14). A division plate (7) closes an end of a bottom part of the box via a mobile valve (8), and an inspection door (20) is placed on a top part of the box. A valve (5) is provided with a lever arm, where an end of the lever arm is arranged on a spring and an electric contactor.