Product Specifications

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Product Description

2016 High Quality Vacuum Glass Tube for Solar Water Heater

Vacuum tube for solar water heater description

The evacuated tube is the key component to all the thermal heaters and systems. It's similar to a

conventional Dewar flask and consists of two borosilicate glass tubes, resistant to high chemical and

thermal shock. The outer side of the inner tube is coated with a sputtered solar selective surface. This

coated inner tube is closed at one end and sealed at the other end to the outer tube. The annular space

between the outer tube and inner tube is evacuated to avoid heat loss in conduction and convection.

The key element determines function of tube is the technology of the film coating, with the highest absorptance rate of near 97% with common rate of 94% and lowest

emission rate near 3% with common rate of 5%. At this efficiency, it has been very hard to improve the

function any more, even very little part.

Vacuum tube for solar water heater working principle

Vacuum tube for solar water heater advantage

1. Higher efficiency collector, much lower heat loss with vacuum insulation;

2. High pressure and super anti-freezing performance in cold weather condition;

3. Less heat loss for closed loop circulation;

4. No system drainage even though one or several tubes are broken;

5. No risk of tube breaking from thermal shock;

6. More convenient in system parts carring and installation.

Vacuum tube for solar water heater packing & shipping

Packaging

Standard export package or pack it according to customers special request.

Delivery

Within 7 days

Contact Us

Dezhou Gaia Solar Energy Co.,Ltd

Room 712, Baitiane Plaza, No.7 of HuBinnan Road, Dezhou City, Shandong Province

Website: gaiasolar.en.made-in-china.com

Mobile and Chat: 0086-13953485199

Supply Ability

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Packaging and Shipping

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Packaging details

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