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Solar water heater parts Solar vacuum tubes
Competitive price and good quality
Certification:CE,ISO9001
Solar water heater parts Solar vacuum tubes
| Features: |
High solar-thermal conversion and low heat loss
Stable advanced coating up to 380
High level vacuum ensure operation under cold weather |
| Vacuum Tube technology: |
Models | 47×150 | 58×180 | Weight | 1.35±0.12kg | 2.29±0.18kg | Structure | All-glass-coaxial double-layer tubes | All-glass-coaxial double-layer tubes | Outer tube diameter | 47±0.7mm | 58±0.7mm | Inner tube diameter | 37±0.7mm | 47±0.7mm | Outer Tube thickness | 1.6±0.15mm | 1.8±0.15mm | Inner tube thickness | 1.6±0.15mm | 1.8±0.15mm | Tubes length | 1542±4mm | 1812±4mm | Material of coating | Al N/Al N-SS/Cu | Al N/Al N-SS/Cu | Absorptance | 0.94~0.96 | 0.94~0.96 | Emittance | 0.04~0.06 | 0.04~0.06 | Vacuum | P≤5×10-3pa | P≤5×10-3pa | Transmittance of Outer Tube | 0.91 | 0.91 | Stagnation temperature (height) | 270~300 | 270~300 | Heat-loss coefficient | ≤0.6w/ m2*) | ≤0.6w/ m2*) | Bearing hailstone ability | hailstone diameter25mm | hailstone diameter25mm | Pressure-endure ability | 1MPa | 1MPa |
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