solar vacuum tube
1) CE, CCC, SGS, ISO9001:2000
2) environmental friendly
3) nice design
4)competitive price
Price Terms:FOB,CIF,EXW
Payment Terms: T/T,Western Union,MoneyGram,L/C
Minimum Order: Negotiatable
Delivery Port: Customized
Contact SupplierPackaging Detail: Standard Export Packing: 8 pcs/carton,10 pcs/carton,12 pcs/carton,15 pcs/carton,20 pcs/carton.Customer can choose according to actual needs.
Delivery Detail: within 4-7 days for 1X40'HQ
Structure | All-Glass Double-Tube Co-Axial Structure | ||
Glass Material | High Borosilicate 3.3 Glass | ||
External Pipe Diameter & Thickness | dia.=47±0.5mm &=1.6mm, dia.=58±0.5mm &=1.6mm, dia.=70±0.5mm &=2.0mm, | ||
Internal Pipe Diameter & Thickness | dia.=37±0.5mm &=1.6mm, dia.=47±0.5mm &=1.6mm, dia.=58±0.5mm &=1.6mm, | ||
Pipe Length | 1500mm, 1600mm, 1700mm, 1800mm, 1900mm, 2000mm | ||
Absorptive Coating Property | Structure | AL/AL-ALN(H)/AL-ALN(L)/ALN | |
Sediment Method | Single Layer Magnetron Sputtering Plating | ||
Specific Absorption | as=0.88~0.91(AM1.5) | ||
Emission Ratio | 0.05~0.075(80°C±5°C) | ||
Vacuum | P≤2.0×10-3Pa | ||
Idle Sunning Property Parameters | Y= 220 ~ 260m²°C/KW | ||
Solar Radiation for Obtaining a Preset Water Temperature | H≤4.7 MJ/ m²(dia.58) | H=4.1~4.4 MJ/ m² | |
H≤3.7 MJ/ m²(dia.47) | H=3.1~3.4 MJ/ m² | ||
Average Heat Loss Coefficient | Ult=0.6~0.7W/( m².°C) | ||
Pressure-Endure Ability | 0.6Mpa | ||
Absorptive Coating Property | Structure | ||
Lifetime | 15 Years |
Advantages:
1) High solar-thermal conversion and low heat loss.
2) Stable advanced three target layer coating.
3) High level vacuum ensuring operation under extremely hot and cold weather.