Arrangement for the connection between a tank and inlet and outlet pipes

摘要

The tank has a cover with contiguous inlet and outlet openings and the pipes are secured and have final portions for insertion into the openings. It comprises a first plate defining a front surface and a second plate defining a front surface, which are opposite one another in the connection position. One of the plates partially surrounds the openings and is preceded by a portion guide surface. The other plate is set back with respect to the free edge of the openings. The first plate has two or more peripheral catches which are orthogonal to the front surface of the first plate and end in securing teeth and the second plate has a rear surface which receives the application of the securing teeth. <IMAGE>