Solar vacuum tubes
SE-N
Just like an automobile engine,the computer CPU,vacuum tube is the core component of the solar water heater. Its performance lies on the actual film coating technology. SIDITE Company adopted a new graded coating technology of Qinghua University,and tube raise the heat.
Detailed Product Description:
Just like an automobile engine,the computer CPU,vacuum tube is the core component of the solar water heater. Its performance lies on the actual film coating technology. SIDITE Company adopted a new graded coating technology of Qinghua University,and tube raise the heat.
Technical Data：
Tube structure | All-glass double-tube co-axial structure | |
Glass material | Borosilicate 3.3glass | |
Outer tube diameter and glass thickness | Φ=47±0.7mm &=1.6mm ±0.15mm Φ=58±0.7mm &=1.6mm ±0.15mm Φ=70±0.7mm &=2.0mm ±0.15mm | |
Inter tube diameter and glass thickness | Φ=37±0.7mm &=1.6mm ±0.15mm Φ=47±0.7mm &=1.6mm ±0.15mm Φ=58±0.7mm &=1.6mm ±0.15mm | |
Tube length | 1200mm,1500mm,1600mm, 1800mm,1900mm ,2000mm , 2100mm | |
Absorber coating | Coating material | AL-ALN |
Sediment method | Single Targets magnetron sputtering plating | |
Absorptivity | a:0.88~0.90(AM1.5) | |
Emittance | ε≤7.5% (80°C±5°C) | |
Vacuum degree | P ≤5.0×10-3 Pa | |
Transmittance of glass tube | T ≥0.89(AM1.5 ISO9806-1:1994) | |
Stagnation parameter | Y ≥200 m²°C/kw | |
Average heat loss | ULT:0.65~0.75W/(m²*°C) | |
Hail resistance | Φ25 mm | |
Pressure-endure | 0.6 Mpa | |