*CE,ISO9001,ISO14001
*higher efficient coating
*CU-SS-ALN/AIN
*Tri-element Vacuum tubes
Item | One-target | Three-target |
Absorption of Selective Coating AM1.5 | ≥94.5% | ≥95.5% |
Emission of Selective Coating 80±5 | ≤6.5% | ≤5.5% |
Stagnation Temperature | 220m2/KW | ≥260m2/KW |
Solar Irradiation for Water Temperature Rise | ≤2.9MJ/ m2 | ≤2.8MJ/ m2 |
Coefficient of Average Heat Loss | ≤0.65W/(m2 .) | ≤0.60W/(m2 .) |
Structure of Selective Coating | Al-N/Al | Cr-Al-N/Cu |
Vacuum | ≤3.0*10-3Pa | |
Maximum Strength | 0.6 MPa | |
Ratio of Solar Transmission | ≥0.89 ( AM 1.5 ISO9806-1: 1994) | |
In term | Specification | ||
Diameter of Outer/Inner Tube | Φ47/37 | Φ58/47 | Φ70/58 |
Length of Tube | 1200, 1500 1600, 1800 1920 | 1500, 1600, 1800 1920, 2000, | 1500, 1800 |
Thickness of Tube | 1.60±0.15 | ||
Note: The length of the tubes can be adjusted from 1200mm to 2000mm according to the buyers requirement.
