Product Description

Characteristic of this type All-glass evacuated tube adopts vacuum insulation, and the thermal preservation of water tank is foaming of polyurethane at high pressure. Our products are configured with energy saving standard, which solves the heat loss caused by the heat transfer, heat conductivity and heat radiation. It has high performance/price rate. Hailstone resistant vacuum tube It is steady and credible. It can be combined with the architecture prefectly It can be combined with existing pipeline. Features: 1) Inner tank: sus****2B stainless steel, advanced welding technique, thickness 0.5mm 2) Out shell: zinc and aluminum coated steel sheet or color steel sheet 3) Corrosion resistant 4) Isolation layer: ****5mm imported polyurethane foam for superior heat preservation 5) Frame materials: galvanized steel, electrostatic powder coated 6) Type: *5, *8, *0, *4, *0 tubes 7) Capacity: ******0 liter Number of Tubes ****0 Length of Tube ***0 mm Outer Tube Diameter *8 mm Inner Tube Diameter *7 mm Glass Tube Thickness 1.6 mm Tube Thermal Expansion 3.3 X *0 *6 oC Tube Material Borosilicate Glass 3.3 Absorptive Coating Graded AI-N/AI Absorptance > *0% (AM 1.5) Emittance 7 % (**0 oC) Vacuum P < 0.**5 Pa Stagnation Temperature < **0 oC Heat Loss < 0.8 W/m2. oC) Reflector Ginning Alumnium reflector plate The out cover of the solar connector Color steel. Frame Zinc coated steel corner sputtering frame Insulation Polyurethane Daily efficiency >*0%