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.

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.

Abstract: A prefabricated, self-supporting, modular radiating panel with a sandwich structure comprises a layer of plasterboard and a layer of heat-insulating material. The plasterboard layer incorporates, internally, several continuous pipes which are designed to form independent hydraulic circuits and the end portions of which emerge all along a same edge of the panel. The independent hydraulic circuits are each housed in adjacent modular zones of the panel, the zones being separable from one another so as to provide panel parts of different sizes in a modular manner.