The tubes are made from low emissivity borosilicate glass (glass with a very low iron content that has superior durability and heat resistance ) with an all-glass seal and they employ AL/N on AL selective coating, which enables the use of the whole solar energy spectrum to generate heat; this produces greater thermal efficiency in bright sunshine but also produces high efficiency in overcast or diffuse sunlight conditions. Further, the tubes are evacuated and have a barium getter (vacuum indicator) which changes color from silver to white if a tubes vacuum has been compromised. An examination of the tubes shows that the outside is actually 2 layers of glass and a vacuum has been created between them. A good way to demonstrate this would be to fill an empty tube with very hot water and notice that it does not even get warm as you hold the tube in your hands. That is because of the thermos effect¡± created by having a vacuum between the layers of glass. Carton with foam inside.
1500 Length(mm)·ª500 ~ 2200f+5mm (special specification per contract) Weight(kg)·ª1.73f+0.12kg Outer tube Dia.(mm)·ª47(mm)f+0.6mm Inner tube Dia. (mm)·ª37(mm)f+0.6mm Outer tube thickness(mm)·ª1.6f+0.15mms Inner tube thickness(mm)·ª1.6f+0.15mm Length(mm)·ª500 ~ 2200f+5mm (special specification per contract) Weight(kg)·ª2.29f+0.18kg Outer tube Dia.(mm)·ª58 (mm)f+0.6mm Inner tube Dia. (mm)·ª47(mm)f+0.6mm Outer tube thickness(mm)·ª1.6f+0.15mm Inner tube thickness(mm)·ª1.6f+0.15mm Material·ªHigh boron-silicon (specially hard) glass 3.3 Film structure·ªGradual change AL-H/AL selective absorbing coated Sun absorptance·ªlayersfª0.92(AM=1.5) (international standardfª0.86) Hemisphere emmissivity·ªf_0.086 (80f¦) (international standf_0.09) Empty solarization parameters·ªfª186¼Of¦/KW(international standardfª175) Cover tightly solarization amount·ªf_3.6MJ/¼O(international standf_3.8) Average heat loss coefficient·ªf_0.86W/¼O(international standf_0.90) Interlayer vacuum·ªf_0.03 Pa (international standf_0.90) Heat shock resistance·ªUnder the 25f¦ there is no damage after times by using above 90f¦ hot water. Pressure resistance,can bear·ª0.6Mpa pressure Hailstibe resustant performance·ªCold water by turns and no damage after strike by hailstone with its grain less than ¬ª25mm. Package: Export standard Carton
Supplier: Solar evacuated tubes, solar vacuum tubes, solar collector, , solar water heater, solar manifold
Product Info: Model No: SET-01 Diameter of Outer/Inner Tube: 47/37, 58/47 Length of Tube: 1500/1800, 1800 Thickness of Tube 1.60±0.15, 2.0±0.15 2.2±0.15 Technical Specifications: Iten Specification: Three Targets (operation Temp. around 100°C) Absorptance of Selective Coating (AM1.5): Alpha >= 92.5% Emission of Selective Coating(80°C±5°C): sh = 240m²°C/kW Emission of Selective Coating(80°C±5°C): sh
The evacuated tube is a product with improved geometry and performance and consists of two concentric glass tubes which are sealed in a semi-circular shape on one side and are joined to one another on the other side. The space between the tube is evacuated and then hermetically sealed (evacuated insulation). To use solar energy, the internal glass coated with an environmentally friendly, highly selective la er on the outside, thus turning it into an absorber. The coating is protected in the evacuated space. The aluminum nitride sputter coating used is characterized by an ex u extremely low emission and a high absorption rate
Heat pipe vacuum tube technical parameter Model: hp58/1800-20 l / 0.43 mm Outer tank material/thickness: sgcd/ 0.5mm Angle of collector: 25-85 ¡ã Rated pressure: 0.7mpa Heat pipe material: copper; 14/24 mm condenser diameter, 1800 mm pipe length. Insulation material and thinness: polyurethane foam, 50 mm Seal: silicon rubber polymer Manifold material: aluminum alloy Tank capacity: 100, 150, 180, 200, 250, 300 lite Advantages: 1. Adopts red copper channel, with great performance of heat exchange 2. Utilize copper heat pipes containing special medium liquid with low boiling point. 3. Work well in all climate, can be function well even in ambient temperature 4. Each heat pipe tube works independent and efficiently and easy to change if necessary. 5. No water flows inside the vacuum tube, no risk of freezing. Working principle: 1. Solar absorption: solar radiation is absorbed by the evacuated vacuum tubes and converted into heat. 2. Solar heat transfer: heat pipes conduct the heat from within the solar tube up to header. 3. Solar energy storage: water or water mix is circulated through the header, via intermittent pump cycling. Each time the water circulates through the header the temperatures is raised by 5-10oc / 9-18of. Throughout the day, the water in the storage tank is gradually heated. Packing :standard export carton with foam or wooden box Delivery: 10-15 working days We offer products which are designed with your specific requirement in mind. Package: standard cartoon box Min order: 2 pieces
Solar Vacuum Tube Description : Stracture : Dual tube geometry Glass materails : Borsoslicate glass to ISO 9000 Outer diameter : 47mm Inner tube diameter : 37mm Tube legth : 1500mm Absorber coating : inner tube coated with four layer cermet selective coating magnetron sputtering vaccum slashing absorptance>93% Emittance :
Supplier: 1. lighting products:
* indoor luminaires (including led bulb, led tube, led panel, led slim panel, led batten, led ceiling, led cross and linear light, led high bay, led parking, led downlight, led track light);
* outdoor luminaires (including led flood light, led solar flood light, led street light, led solar street light.)
* led grow lights (a variety of professional grow lights for dragon fruit, chrysanthemum, medicinal plants, ginseng, tomatoes, strawberries, grapes, watermelons, cantaloupe, bell peppers, orchids, vegetables, algae, etc.);
* fishing lights (including on boat lights and underwater lights);
2. kitchenware products: vacuum flask, water bottle, electric kettle; electric blender, rice cooker, glass liner and accessories.
Services: Manufacturing, export and import, transport, and odm/oem services for all of the products.
Inside of tank 304 quality chrome Outside of tank depend for order with gray colored or 404 shining chrome. Also we have 4 type of cold water tank 30lt/80lt/130lt/180lt for 24 tubes solar enegy system Standart size
