CONNECTION FITTING OF SOLAR COLLECTOR

PROBLEM TO BE SOLVED: To provide a connection fitting of a solar collector enhancing the appearance of the solar collector in its installed state and allowing reduction in maintenance time. SOLUTION: The connection fitting comprises a first tubular connection pipe 103 having one end to be connected with a heat collection pipe of one solar collector; a second tubular connection pipe 105 having one end to be connected with a heat collection pipe of the other solar collector, and the other end surrounding the outer tube face of the first connection pipe 103 at the other end side in the state of being movable in the axial direction; and sealing means 111, 113 and 115 for sealing a liquid to prevent the liquid flowing in the interior from leaking outside from the heat collection pipe of the one solar collector, the one end side of the first connection pipe 103, the other end side of the first connection pipe 103, the other end side of the second connection pipe 105, the heat collection pipe of the other solar collector, and the one end side of the second connection pipe 105.