Solar Thermal Vacuum Tubes Vacuum Glass Tubes for Solar Water Heater Parabolic Trough Receiver Tube

Product DescriptionSizeφ58×1800mm/2100mm or as per requestRemarksMaterialHigh Borosilicate glass (3.3W/m.k)Very high strength and also haselasticity. Three target membrane layers are Stainless Steel-AIN composite (SS-AlNx/Cu) and getter material BALL252FGHeat absorption ratio0.90Hemispherical emission ratio0.05Stagnation Temp.330ºClrradiation, H4.1MJ/m²Heat loss coefficient, ULT0.52W/(m²·ºC)Light Transmittance0.92Am²Detail ImagesCompany ProfileCertification/* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1