High-efficient vacuum tube

7.     High degree cold resistant:Even in high latitude in Northeastern China area with highdegree cold when cold temperature bitter cold,hot water can still be used normally,displaying super high heat collection rate.

6.     Great strength:It shall not be broken under impact by Din.25mm hail

5.     Corrosion resistant:Performance against chemical corrosion is extremely good,appropriate to various kinds of water quality.

4.     Long life:Performance of film plated layer is stable.being not easy to ageing and attenuation.Processes in links of material selecting,production,transportation and quality inspection,etc. are strict with longer service life.

3.     Small thermal losses:Higher degre of vacuum is kept between vacuum heat collection pipes,reducing thermal losses caused bu heat conduction and heat convection to the maximum.

2.     High thernal efficiency:Pure vacauum layer without impurity Degree of vacuum is high and lasts long,possessing extremely high absorption to sunlight with extremely low thermal emissivity.

1.     EXcellent material is choose:"High borosilicate glass 3.3" is adopted as the raw material.

  Features:

Excellent material
High thermal
Small thermal losses
long life