Sell Lsad-58/1.8--heat Pipe Vacuum Tube Solar Collector

Feature: 1.        Using a high efficiency heat pipe and heat transfer fin design to conduct the heat from within the all glass vacuum tube up to the header; 2.        Due to the vacuum between the two glass tubes, conductive and convective heat loss are eliminated; 3.        The tube is 100% glass, the problem with loss of vacuum due to a broken seal is greatly minimized, therefore, these tubes perform very well in overcast conditions as well as low temperatures; 4.        The evacuated heat pipes used in Lotusino solar collectors have a boiling point of only 30 o C (86 o F) which leads to its rapid heat transfer and excellent low temperature performance; 5.        Due to the cylindrical absorber area, which passively tracks the sun throughout the day, Lotusino collector have a   stable solar conversion all day; 6.        Suitable for mains pressure water (up to 8 bar/116psi); 7.        Easy plug-in installation; 8.        The perfect solar collector for domestic solar water heater systems, also ideal for commercial solar water heating applications. Specification: 1.          Manifold (interior): red copper; 2.          Manifold (exterior): aluminum alloy; 3.          Insulation: rock wool; 4.          Glass tube dimensions: 58mm x 1.8m / 47mm x 1.5m ; 5.          Coating of vacuum tube: ALN/AIN-SS/CU OR AL-N-AL ; 6.          Heat preservation: 72 hrs; 7.          Hail resistance: 25mm ; 8.          Heat pipe : anti-freezing > -35 degree