Evacuated Solar Tube Collector

Features:
* High heat effectiveness: higher than all - glass evacuated solar collector
tube by 15%
* Heat pipe conduction: successfully prevents the defects of tube breakage and low power output caused by water fouling and deposits or dust and
sand
* Prevents the tube from being easily broken caused by volume expansion
when water freezes in the frigid season
* Low thermal capacity makes the tube start up quickly
* Energy output within only 2 minutes of sunshine
* Insulation temperature can reach 250o C, average heat efficiency can still be more than 50%; even under -50oC
* High efficient selective absorptive coatings and vacuum heat insulation technology ensure the tube has higher heat output in cloudy weather and in moist areas, especially in winter
* Solar collecting plate is sealed inside a high quality borosilicate glass tube with 5 x 10 - 3 pa of vacuum, to stop corrosion; even in moist conditions