Device for connection between adjacent solar receiver tubes

The invention relates to a device for connection between adjacent solar receiver tubes, of the type arranged on the end of the solar receiver tube (1) to be connected to another adjacent solar collector tube, comprising: a compensating expansion element with at least two concentric bellows (7, 8) that are connected to each other, and to a rigid ring (9), by means of a welded joint, the rigid ring keeping the bellows concentric during the process of expansion and compression and joined to the glass tube (4) by means of the cover (12) and glass-metal transition element (21); a connection flange (5) for connecting said solar receiver tube (1) to the one adjacent thereto, the flange (5) being a round metal plate with a hole that surrounds the absorber tube (3); and through-bolts (20) that pass through the connection flange (5) in order to connect it to the flange of the adjacent receiver tube (1).