Haining City Baoguang Heat Collection Tubes Co.,Ltd

haining, zhejiang, China

We are offering there-target all glass solar vacuum tube - (47mm) etc. Details: 1) unique three-layer absorption technology2) unique three-layer stainless steel/red copper/aluminum; heat resisting; prevents peeling off even when the glass gets waxy degeneration3) unique three-layer against degeneration, color fading or performance degeneration caused by empty vacuum tube overexposure to the sun, extending the useful life of the product4) three layer interference coating technology5) unique super pure copper surface - low reflection and minimal heat loss6) ideal heat collecting efficiency in extreme cold water; available at a temperature of -30c

We are offering low pressure all glass solar vacuum tube. type 1 (glass-glass) tubes consists of two glass tubes which are fused together at one end. The inner tube is coated with a selective surface that absorbs solar energy well but inhibits radiative heat loss.the air is withdrawn ("evacuated") from the space between the two glass tubes to form a vacuum, which eliminates conductive and convective heat loss.these tubes perform very well in overcast conditions as well as low temperatures. Because the tube is 100% glass, the problem with loss of vacuum due toa broken seal is greatly minimized. Glass-glass solar tubes may be used in a number of different ways, including direct flow or heat pipe configuration.imposol uses a high efficiency heat pipe and heat transfer fin design to conduct the heat from within the evacuated tube up to the header.