Material
Vacuum tube Diamater: 47mm-1500mm, 58mm-1800mm 58mm-2100mm spacefilight vacuum heat collecting tube.
Material of inner tank: SUS304-2B stainless steel with 0.4mm thickness
Material of outer tank: SUS-2B stainless steel with 0.4mm thickness.
Copper coil: The diameter is 12mm, thickness is 1mm.
Heat preservation: Imported polyurethane foam with 55mm thickness.
Specification: 58mm*1800mm
Material of support: Stainless steel profiled bar with 1.2mm thickness orn galvanized steel plate wqith plastic spraying.

Principle
The water of the heat preservation water tank is just decalescence, heat accumulation and thermolysis the water of the water tnk is invariablenes.The vacuum tube collector absorbs the heat energy to heat the water in heat storage tank, when using the hot water, the cold water nflows through the inlet, the copper coil absorbs the heat then transfers into the cold water, so that the temperature rise up ceaseless, for the original features of the copper coil, the water temperature of the outlet is close to the water temperature of the wate tank(¡Ü3 degree).So the high pressure the cold water into the copper coil and absorbs the temperature, at last the water can be used.