Vorrichtung zum Belüften von Wasser

摘要

1. Apparatus for water aeration, esp. for water treatment or for sewage, having plate-like aerators which substantially comprise a rigid holder (3) and a rubber plate (4), which is disposed on said holder and is provided with slots for the exit of the air, wherein the holder (3) is connected to a pipe (1) by means of a connecting piece (5), which serves to supply air, said pipe serving to distribute the air and being in communication with a plurality of aerators which are distributed over the length of the pipe, characterised in that the connecting piece (5) protrudes into the pipe (1), and an initially tensioned bush (9) is disposed between the connecting piece (5) and the edge (11) of the hole (2) in the pipe (1), which hole serves to receive the connecting piece (5), said bush being formed from rubber or rubber-like plastics materials and surrounding the connecting piece (5), which bush is provided with an annular groove (10) for receiving the edge (11), tapers conically towards the free end of the connecting piece (5) in respect of its external diameter, widens externally of the pipe (1), abuts against the pipe (1) with the lower end of its widened portion (13) and forms an abutment for the holder (3) at its upper end, the upper surface (14) of the widened portion (13) being adequately dimensioned for the stable mounting of the holder (3), and the lower end of the bush (9) having a configuration, which corresponds to the configuration of the pipe (surface 15), and forming a uniform moulded rubber body, which is produced per se, with its upper widened portion (13) and a portion situated inside the pipe (1).