Joint for watertight connection of pipes or unions in low-pressure hydraulic systems, particularly for lines for disposal of wastewater of civil or industrial buildings

摘要

A joint (1) for the watertight connection of pipes or unions (3) in low-pressure hydraulic systems, particularly for lines for the disposal of wastewater of civil or industrial buildings. The joint (1) comprises a main seat (2), which is formed at one end of a first pipe or union (3) and accommodates a portion, proximate to one end, of a second pipe (4). A sealing gasket (5) is interposed in the main seat (2), between the lateral surface of the main seat (2) and the outer lateral surface of the portion of the second pipe (4) inserted in the main seat (2). The gasket (5) comprises a supporting part (6), which engages stably an engagement seat (7) formed on the lateral surface of the main seat (2), and a sealing part (8), which engages against the outer lateral surface of the portion of the second pipe (4) and/or against the surface of the main seat (2).