SilicaPro

Solar Glass Tube

Single target vacuum tube (1G)

Made from borosilicate glass 3.3, the solar tube is a product with improved hailstone impact resistance and thermal shock resistance.
The evacuated tunnel consists of two concentric glass tubes, sealed in a semicircular shape on one side and joined to one another on the other side.
The space between the tube is evacuated and then hermetically sealed, the internal glass tube is coated with an environmentally friendly, highly “sensitive” layer on the outside, thus turning it into an absorber.
The coating is protected against adverse weathering influences within the evacuated space; the single-target aluminum spatter coating AL/AL-ALN(H)/AL-

SINGLE TARGET VACUUM TUBE solar glass water heater

Three target vacuum tube(2G)

Different from a single target all-glass vacuum tube, this type of vacuum tube adopts a hi-tech spattering with 12 layers of solar absorptive the second generation coatingALN/ALN-SS/CU, which presents the vacuum tube with a much higher absorptance and lower emission ratio. In addition, three target vacuum tube is especially excellent in heat resistance, without any problem when its temperature has risen up to 380℃ against idle sunning, much more stable performance and longer lifespan.

Special& efficient three target 3G vacuum tube

This type of vacuum improved the coating technology on the basis of three target vacuum tubes, plus bidirectional absorption coating in the inner tube, improving thermal efficiency, the efficiency far more than ordinary vacuum tubes. Unique 3rd-generation Cu/SS-ALN(H)/SS-ALN(L)/ALN coating, the absorption rate averaged over 0.96.
There is the additional copper layer that captures infrared energy and gives a more output, allowing for a much longer lifespan of 20-25 years, and the coating can withstand high temperature (380 degrees C), anti-cold effects better, minus 50 degrees C still can work, the outside color of new.

Heat pipe vacuum tube

A perfect combination of vacuum tube and copper heat pipe, the heat pipe is a copper pipe with its inside evacuated and filled with a small quantity of fluid. The fluid medium has a very low boiling point; when the medium gets heated over its boiling point, the fluid vaporizes, the vapor carrying with heat energy rapidly rises to the top of the inside heat pipe for heat exchanging. As heat is released into the water, the vapor cooled and condensers to form a liquid and return to the bottom of the inside heat pipe to once again repeat the heat exchanging process.
Because of the unique heat exchanging theory, heat pipe vacuum tube has a quick startup, high working temperature and bearing pressure, and super anti-freeze