316L  manifold evacuated tube collector (ETC)

Evacuated tube collector is the device for absorbing solar energy by vacuum tubes.Evacuated tube collector is made up of single tubes.This tubes are the key part of collector for covert the solar energy into heat energy and offer hot water for solar water heater system.Tubes are made of high borosilicate glass with high temperature resistance.They are made of two layer of glass.Inner glass is the coated with three target coating for absorbing solar energy. Out glass would protect the inner glass coating .Between two layer, it is vacuum treatment for protection the coating and preserve the heat. 

This evacuated tube collector (ETC) is on natural circulation system, evacuated tubes are directly filling with water and covert the energy directly with water.it is non-pressurized system while connect with system,it must be sure that system is open loop to avoid damage of solar collector.Air vent links to atmosphere must be done. And solar water heater tank which works with evacuated tube collector must be type of open container. Any block will cause tank expanding damage.

We have many types of evacuated tube collector different in design of manifold for different project.

Here we would like to introduce you very simple ETC.

manifold size in 180X160mm

tube size 58X1800mm,evacuated  tubes numbers:25pcs

For 316L manifold  evacuated tube collector ,it is shinning for the point:

1.manifold interior and exterior material all in 316L stainless steel

 foaming in 40mm.

2.the manifold end cover is 316L material instead of the plastic cover

3.frame adopt the aluminum alloy for top quality anti-rust purpose

4.tube holder adopt plastic  adjustable holder instead of unremovable frame tube holder.

It is strongly suggested for the island , bad water quality and wet enviroment area.This 316L material evacuated tube collector is highly anti-rust against the bad enviroment.