Three High Vacuum Tubes (JY-4X)
Product Info: Three high vacuum tubes assimilate the advanced 12 layers of spattering deposition of trivalent element technology, high borosilicate glass, and gradual change of SS/CU selective complex absorptive coating. And these make vacuum tubes have high performance of absorptance and low reflection ratio. Through the interlayer, vacuum has a unique effect of thermo, with its temperature up to 380° C of idle sunning, performing a strong heating ability. As for the coating of tube, three high vacuum tube is more efficient than ordinary vacuum tube.

Work Principle: (See the above diagram)
The coating of inner tube can absorb heat energy from sunshine, water take heat when fluid into vacuum tube, then it becomes lighter and rises naturally into the tank above. Meanwhile, cooler water in the tank flows down pipes to the bottom of the collector, causing circulation throughout the system. It's a open-loop circulation.

Features:
1. Whole glass vacuum tubes adopt super hard borax and silica glass, no scale;
2. prompt delivery, reasonable price;
3. CE, CCC, ISO9001 approval;
4. Small order and OEM order accepted.