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Address: No. 7 Lushan South Road, Liaocheng High tech Zone, Shandong Province
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Each evacuated tube consists of two glass tubes. The outer tube is
made of extremely strong transparent borosilicate glass, that is
able to resist impact from hail up to 25mm in diameter. The inner
tube is also made of borosilicate glass tube, but coated with a
special selective coating which features excellent solar heat
absorption and minimal heat reflection properties. The air is
withdrawn (evacuated) from the space between the two glass tubes to
form a vacuum, which eliminates conductive and convective heat
loss.
In order to maintain the vacuum between the two glass layers, a
barium getter is used (the same as in television tubes). During
manufature this getter is exposed to high temperatures which causes
the bottom of the evacuated tube to be coated with a pure layer of
barium. This barium layer actively absorbs any CO, CO2, N2, O2, H2O
and H2 outgassed from the tube during storage and operation, thus
helping to maintaining the vacuum. The barium layer also provides a
clear visual indicator of the vacuum status. The silver coloured
barium layer will turn white if ever the vacuum is lost. This makes
it easy to determine whether or not a tube is operating correctly.
| Parameter | Value |
|---|---|
| Product Name | Solar Thermal Vacuum Tube |
| Length | 566mm, 610mm, 850mm, 1860mm, 2160mm |
| Outer Diameter of Tube | 137mm |
| Origin | China |
| Inner Diameter of Tube | 121mm |
| Application | Solar Cooker, solar Water Heater, solar Collector |
| Thickness of Tube | 3.0mm |
| Structure | Three Target |
| Material of Tube | Borosilicate Glass 3.3 |
| Key Features | Vacuum solar tube, solar oven vacuum tube, solar oven vacuum tube manufacturers |
Each evacuated tube consists of two glass tubes. The outer tube is
made of extremely strong transparent borosilicate glass, that is
able to resist impact from hail up to 25mm in diameter. The inner
tube is also made of borosilicate glass tube, but coated with a
special selective coating which features excellent solar heat
absorption and minimal heat reflection properties. The air is
withdrawn (evacuated) from the space between the two glass tubes to
form a vacuum, which eliminates conductive and convective heat
loss.
In order to maintain the vacuum between the two glass layers, a
barium getter is used (the same as in television tubes).During
manufature this getter is exposed to high temperatures which causes
the bottom of the evacuated tube to be coated with a pure layer of
barium. This barium layer actively absorbs any CO, CO2, N2, O2, H2O
and H2 outgassed from the tube during storage and operation, thus
helping to maintaining the vacuum. The barium layer also provides a
clear visual indicator of the vacuum status. The silver coloured
barium layer will turn white if ever the vacuum is lost. This makes
it easy to determine whether or not a tube is operating correctly.
The Solar Thermal Vacuum Tube is a versatile product that can be used in various settings and industries. Its main applications include:
Longpu offers customized services for our Solar Thermal Vacuum Tube, also known as solar evacuated tube or solar vacuum tube collector. Our tubes are designed to provide efficient and reliable solar energy solutions for various applications such as solar cookers, water heaters, and collectors.
With a brand name that represents quality and durability, Longpu ensures that our products are made with the highest standards. Our Model Number 137mm is specifically designed for optimum performance and is suitable for various solar thermal systems.
Our tubes are made in China, using the best materials available. The Borosilicate Glass 3.3 used in our tubes is highly durable and has excellent heat resistance properties, making it ideal for solar applications.
As part of our customized service, we offer different packaging options, including cartons, to ensure the safe delivery of our products to our customers.
The Solar Thermal Vacuum Tube is carefully packaged to ensure safe transportation and delivery to our customers.
We offer various shipping options to accommodate our customers' needs. The Solar Thermal Vacuum Tube can be shipped domestically or internationally via air, sea, or land transportation. Our team works closely with trusted logistics companies to ensure timely and secure delivery of our products.
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