heat pipe solar collector: Φ47-1500mm, Φ58-1800mm; The material of the manifold : aluminum alloy thickness :2mm, The material of the bracket: aluminum alloy thickness:1.8mm The material of the inner tank: SUS304 2B thickness:1.2-2mm The material of the out tank: galvanized steel thicknes:0.4mm Working principle: Split heat pipe solar system is composed of four components --- pressured water tank, vacuum heat tube heat collector (a cooper-tube style heat pipe inside), work station and conducting oil. The solar energy selected by the vacuum heat tube collector is sent to the conducting oil or heat transfer medium through the heat quantity of the cooper heat tube, after the work station control the temperature difference, the automatic circulating pump will constantly transfer the heat quantity to the highly efficient copper tube heat exchanger in the pressured water tank, so that the water temperature will be increasing. A separate flexible combination is designed between the heat collector and the pressured water tank with a double-way pipeline connection.