850mm length large diameter solar vacuum tube

  Solar vacuum tubes are heart of the Longpu Solar Collector ,responsible for absorbing sunlight and converting it into usable heat. We specialize in producing 125mm and 137mm big diameter solar vacuum tube,which can be used for solar cooker,solar barbecue oven,solar heating ,solar refrigeration,solar energy without tank and solar collector.

 The solar vacuum tube design used by Longpu has proven to be extremely robust.The tube is essentially two glass tubes that are fused at the top and bottom.The inner tube has a solar absorbing coating,and the space between the two tubes is evacuated to form a vacuum.