Solar Collector Tube

Length: 1200mm, 1500mm, 1800mm, 2. 0mmGlass thermal energy pramater: 3. 3*10-6 / degreeOuter Glass Tube Diameter: 47mm / 58mmInner Glass Tube Diameter: 37MM / 47mmThickness of the Glass Tube: 1. 6mmTransmission Ratio of the Outer Glass Tube: >0. 89Solar Selective Absorber Coating: ; AL-N / ALAbsorptance (AM1. 5) : >0. 86Emission Ration (80 degree) : <0. 09Atmospheric Pressure Intensity in Vacuum Jacket: P<5*10-3Stagnation Temperature: >210 Deg. CHeat Loss Coefficient: <0. 90w / M2 degreeHail Resistant Ability: diameter<25MM TYPE: Length: 1200mm, 1500mm, 1800mm, Glass thermal energy pramater: 3. 3*10-6 / degreeOuter Glass Tube Diameter: 47mm / 58mmInner Glass Tube Diameter: 37MM / 47mmThickness of the Glass Tube: 1. 6mmTransmission Ratio of the Outer Glass Tube: >0. 89Solar Selective Absorber Coating: ; AL-N / ALAbsorptance (AM1. 5) : >0. 86Emission Ration (80 degree) : <0. 09Atmospheric Pressure Intensity in Vacuum Jacket: P<5*10-3Stagnation Temperature: >210 Deg. CHeat Loss Coefficient: <0. 90w / M2 degreeHail Resistant Ability: diameter<25MMMax. Pressure Resistant Ability0. 8 MPa