U Pipe Solar Collector

U Pipe Solar Collector Skylight Evacuated Tube Specifications:1. Length (nominal):1800mm/1600mm2. Outer tube diameter: 58mm/47mm3. Inner tube diameter: 47mm/37mm4. Glass thickness:1.8mm/2.0mm5. Thermal expansion: 3.3x10-6°C6. Material: Borosilicate Glass 3.37. Absorptive Coating: Graded Al-N/Al8. Absorptance: v>93% (AM1.5)9. Emittance: <8% (80°C)10. Vacuum: P<5x10-3 Pa11. Stagnation Temperature :> 200°C12. Heat Loss :< 0.8W/ (m2°C)13. Maximum Strength: 0.8MPa14. Start-up temperature: ≤25°C15. Anti hail: ≤Ø 25mm16. Weight:2.2kg/3.0kg17. Package: 1880*330*170(10pcs) 1880*280*170(8pcs) Model NameSLUPCManifold casing materialAnodized aluminum (2. 5-3mm)Frame materialAnodized profiled aluminum bar(2. 5-3mm)Header pipe materialCopperU pipe materialCopperU pipe diameter8mmInsulationRock woolRubber seals and ringsUV stabilized high temperature silicon rubberTest pressure9 barWorking pressure8barCollector mountingFlat roof/inclined roofMounting angle30 degree-50 degreeInlet Outlet3/4