Masonry-wall lead-through

摘要

The masonry-wall lead-through exhibits a connection piece (2) which centres a plastic tube (3) in a protective tube (1). A union nut (7) may be supported on the connection piece (2) and, on the other side, can be screwed to a screw-connection body (6). Fastened in the plastic tube (3) is a supporting sleeve (4) which rests with its flange (41) against the end side of the plastic tube (3). A profile sealing ring (5) is laid around the plastic tube (3) and retained between the flange (41) and the connection piece (2). A graphite ring (8) is provided between the screw-connection body (6) and the connection piece (2). The outer tube (1), the connection piece (2), the union nut (7), the supporting sleeve (4) and the screw-connection body (6) are produced from stainless steel. <IMAGE>