High Efficiency Solar Oven, Solar Dish, Spotlight Cooker manufacturer / supplier in China, offering Gaia High Efficiency Solar Oven Spotlight Cooker, Electric Tricycle Mini Bus Scooter/ Battery-Oper Ate Old Scooter Urban Recreational Vehicle Small Bus Single Double Available /China Mini Bus, Electric Motor Three Wheel Used Pickup Cars for Cargo/Hub Motor Electric Motorcycle Van Three Wheel Cargo Tricycle/Smart Car Pickup and so on.
Min. Order / Reference FOB Price | |
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1000 Pieces | US $3.95/ Pieces |
Local Area: | Dezhou, Shandong, China |
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R&D Capacity: | OEM, ODM, Other |
Payment Terms: | LC, T/T, PayPal |
Condition: | New |
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Type: | Double Vacuum Heating Tube |
Certification: | ISO |
The evacuated tube is the key component to all the thermal heaters and system. It's similar to aconventional Dewar flask and consists of two borosilicate glass tubes, resistant to high chemical andthermal shock. The outer side of the inner tube is coated with a sputtered solar selective surface. Thiscoated inner tube is closed at one end and sealed at the other end to the outer tube. The annular spacebetween 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, Gaia Solar tube is the best efficiency tube you canfind in China, with the highest absorptance rate of near 97% with common rate of 94% and lowestemission rate near 3% with common rate of 5%.
Parameters
RFQ:3.3highborosilicateglasstubeperformanceandusageintroduction
Highborosilicateglasshasfirst-classlevelofhydrolysisresistanceperformancehigh-borosilicateglass,widelyusedinlaboratoryandchemicalplants,inrecentyearsinthesolarheatingdeviceontheapplicationhavedevelopedrapidly.Advantages
Highborosilicate3.3glassproducthasknownaschemicalstability,highvoltage,resistanttothermalshockandexcellentprocessingperformancecharacteristics.Quality
Highborosilicate3.3glassproductiontube,theproductionprocessofeverystephasstrictqualitycontrol,andthroughISO9001qualityauthentication.Threekindofsolarcollector tube
1. Common: evacuatedcollectortubes
2.High-efficiency:Three-targetevacuatedcollectortubes:blueandblack-golden
3.High-efficiency:Three-targetevacuatedcollectortubes:purple golden(purpleandgolden)