Solar Vacuum Tube 58-1800
USD $1.8 - $2.5 /Piece
Min.Order:10000 Pieces
Haining Jineng Solar Energy Industry Co., Ltd.
Vacuum Tube
Jineng Vacuum Tube Specification:
Tube structure | All-glass double deck co-axial structure | |
Glass material | High borosilicate 3.3 glass | |
Outer tube diameter and glass thickness | Φ47±0.7mm; Glass thickness 1.6±0.15mm | |
Φ58±0.7mm; Glass thickness 1.6±0.15mm | ||
Inner tube diameter and glass thickness | Φ37±0.7mm; Glass thickness 1.6±0.15mm | |
Φ47±0.7mm; Glass thickness 1.6±0.15mm | ||
Tube length | 1500mm,1800mm, 1900mm, 2100mm | |
Absorptive coating property | Coating material | AL/AL-ALN(H)/AL-ALN(L)/ALN |
Sediment method | Single target magnetron sputtering plating | |
Absorptivity | α=0.90~0.93(AM1.5) | |
Emission ratio | ε=0.05~0.075(80°C±5°C) | |
Vacuum degree | P≤5.0×10-3 Pa | |
Stagnation temperature (temperature inside of empty evacuated tubes) | 220~260°C | |
Average heat loss | ULT=0.6~0.7W/(m2*°C) | |
Hail resistence | Φ25mm | |
Pressure endure | 0.6MPa |