China Vacuum Tube Solar Vacuum Tube Evacuated Tube

Three targeWire Mesh t All-Glass Vacuum Tube for SolaManipulator r Water Heater,Evacuated tubeAdvantage:
1>5 years warranty, long life span
2>Most competitive price and high quality
3>Quality assurance comply with ISO 9001-2008
4>Product quality in compliancee with CE
5>Fast delivery and rich export experience
6>OEM and ODM serviceTechnical Parameters:
Tube structureAll-glass double tube co-axial structureGlass materialBorosilicate 3.3 glassLED Display Absorber coatingCoating materialCU/SS-AL/NSediment methodTri-Targets magnetron sputtering platingAbsorptivitya:0.93(AM1.5)Emittanceε≤6 % (80°C±5°C)Vacuum degreeP ≤5.0x10-3 PaTransmittance of glass tubeT ≥0.89(AM1.5 ISO9806-1:1994)Stagnation parameterY ≥250 m²°C/kwAverage heat lossULT:0.55~0.65W/(m²*°C)Hail resistanceΦ25 mmPressure-endure0.6 Mpa Feature:
Tri-element tubes consist of two glass tubes which are fused together at onPost-Press Equipment e end. The inner tube is coated with a selective coating with 12 layers of spattering deposition technology that absorbs solar energy well. The coating is ALN/AIN-SS/CU by gradual change techniques, which has better heating efficiency.
The air is withdrawn ("evacuated") from the space between the two glass tubes to formIndustrial Equipment & Components a vacuum, which eliminates conductive and convective heat loss. Therefore, evacuated tubes could achieve up to 380 degree from theoretical condition, and act as the key component of solar water heaterPackaging:standard export cartons
Shipping:
1. Loading port:Shanghai, Ningbo
2. Sea transport for bulk order, Air transport and Courier Service for sample order
3. EXW,FOB,CIF all accepted