Abstract: An apparatus is provided for the gasification or aeration of liquids. Elongated aeration elements are connected to a distribution conduit and have an essentially rigid support tube about which is disposed a membrane of elastomeric material. Compressed gas introduced between the support tube and membrane escapes via slits in the membrane. An elastically deformable fitting is disposed between the distribution conduit and one of the aeration elements, and is disposed in a bore in the conduit. The fitting has an essentially flat portion, one side of which rests against the outer surface of the conduit, and the other side of which rests against an end of the aeration element. A hollow bolt is securely connected to the aeration element and is guided through a bore in the fitting into the interior of the conduit, where it is provided with apertures.

Abstract: A plate-like water aerator is provided. A plate, made of elastomeric material, is disposed on a rigid, essentially planar mounting support and covers the one or more air supply connections thereof. The plate is provided with fine slits for the discharge of air. The mounting support has a circumferential rim that is angled-off at substantially right angles. The mounting support also has a circumferential rib that extends parallel to the rim in such a way as to form a circumferential groove between the rib and the rim. The plate has an essentially u-shaped rim portion, a radially inwardly disposed leg of which surrounds the rim of the mounting support and engages in the circumferential groove in a manner free of play.