Patent ID: 10113678

Abstract:
Sliding quick-coupling joints are provided. Such joints have a tubular coupling element, in which an inner duct extends. The inner duct has a cylindrical chamber with an open end, an intermediate cylindrical section narrower than the cylindrical chamber, a central duct section, an inner transverse shoulder surface which connects the intermediate cylindrical section to the central section of duct, and a transverse surface that connects the cylindrical chamber and the intermediate cylindrical section. The cylindrical chamber accommodates a slidably movable annular locking element, a movable shoulder, and a sealing device. A pipe may be inserted into the cylindrical chamber and through these elements. The annular locking element is interposed between the transverse surface and the movable shoulder. The joint keeps the pipe mechanically coupled while providing fluid-tight seal and allowing the pipe to undergo thermal expansion. Methods of mounting such sliding quick-coupling joints are also provided.