Solarkeymark Certificate Tubular Heat Pipe Solar Thermal Water Collector

Working principle:The inside of the glass tubes are coated with a special black absorber that absorbs nearly all the energy of the sunlight falling on it. The aluminum wings transfer the heat energy to the heat pipe.The liquid in the heat pipe boils and the steam travels up to the top of the heat pipe. The top bulb of the heat pipe (the condenser bulb) is in contact with Header Piper, which causes the vapour to condense.The drops of condensed liquid then drip down the heat pipe. This cycle repeats so long as sunlight keeps heating the pipe and the top of the pipe is cool enough to condense the vapour.Feature:1) Use three target AL/N-SS/CU coating glass vacuum tube2) Anti-freeze copper heat pipe, can working under  cold climate3) With Rock wool insulation4)Anodized Aluminum 2.0mm thickness for both Manifold and frame5)Working pressure 0.6MPA6) Easy installation and free maintenance7) Each tube working independently ,even one tube broken, the whole system still work8) Hail resistance reach 25mm9) Flexible installation by both flat and inclined roof10)Suitable for multiple applications such as hot water tanks, radiators and in floor heating.   ModelVacuum TubeSupply hot water (L)Aperture Area (m2)Container(Sets) Diameter(mm)Length(mm)NO. 20GP40GP ST-58/1800-15HT581800151301.4103206 ST-58/1800-18HT581800181601.6782164 ST-58/1800-20HT581800201701.8678156 ST-58/1800-24HT581800242002.2371142 ST-58/1800-30HT581800302502.795710/* 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