Heat pipe vacuum tube is used for closed-loop solar hot water systems. Mainly for split solar collector system and compact pressure system.
For split solar collector system, heat pipe vacuum tube absorbs sun heat energy, and transfers it to cold fluid, makes fluid hot. Fluid normally is moved by pumps.
For compact pressure system, heat pipe vacuum tube absorbs sun heat energy, and transfers it to cold water, make water hot.
This heat pipe vacuum tube¡¯s maximum working pressure is 6 bar. When produced in plant, we will test it for 12 bar before leaving factory.
When we applied EURO SOLAR KEY MARK EN12975 certificate for solar collector before, we have used this heat pipe vacuum tubes, test result is very good, energy absorption rate is more than 90%.
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