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Description :
Adopt the technique of magnetic-control sputtering selective absorptive coatings, improve the heat collecting efficiency by reducing the content of water. Length 1500mm 1800mm
Outer tube diameter 47mm 58mm
Internal tube diameter 37mm 47mm
Weight 1.3kg 2.2kg
Glass thickness 1.6mm 1.6mm
Material Borosilicate glass 3.3 Borosilicate glass 3.3
Absorptive coating Graded A1/N/A1 Grage A1/N/A1
Vacuum degree P≤5.0×10-3 Pa P≤5.0×10-3Pa
Thermal expansion 3.3*10-6/ºC 3.3*10-6/ºC
Insolation Temperature >200ºC >200ºC
Absorptance >93% >93%
Emittance <8% <8%
Heat loss <0.8W/(m2ºC) <0.8W/(m2ºC)
Maximum strength 0.8Mpa 0.8Mpa
Resist cold -35ºC -35ºC
Resist hailstone φ25mm φ25mm
Resist wind 30m/s 30m/s
Start-up temperature ≤25ºC ≤25ºCCE,ISO5000paper boxChina1
Certification :
Origine du produit :
INFORMATION TARIFAIRE :
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