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Material: high 3.3 borosilicate glass

Models: Φ47/58/70

Structure: Gtaded Cr-Al-N/Al/Cu coating double-layer tubes(most advaced coating in current world)

Outer tube diameter: 47±0.7mm /58±0.7mm

Inner tube diameter: 37±0.7mm/47±0.7mm

Tube thickness: 1.6±0.15mm/1.8±0.15mm

Absorptance: 0.94~0.96

Emittance: 0.04~0.06

Transmittance of outer tube: 0.92

Stagnation temperature(height):219~300

Presure-endure: 1.0Mpa

Stable advanced coating up to 420.

React swiftly and collects solar energy effectively. 

The tube can bear the impact of the steel ball(diameter 30mm) fall in height 450mm.

High level vacuum ensure operation under Bad  weather(-50^oC_500^oC)

Ideal heat collection efficiency in extreme cold water, with hot water available at a temperature of -30^oC.

Long time warranty to 15 years.

The evacuated tube with superconductive heat-pipe is the most advanced product in the world.

The current products mainly

And the most important thing is that we can also provide products as your request. 

Hope you have interest in our products and contact us.

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