- Contact Person : Mr. Ma Edwin
- Company Name : Haining City Baoguang Heat Collection Tubes Co., Ltd.
- Tel : 86-573-87860877
- Fax : 86-573-87860677
- Address : Zhejiang,Email us: edwin4cnbg(at)hotmail.com,# 4 Yuanhua Industrial Zone,Haining City, Zhejiang 314416.China
- Country/Region : China
- Zip : 314416
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1. Single target tube
Single-target vacuum tube performance and specification:
Tube structure | All-glass double deck co-axial structure | |
Glass material | High borosilicate 3.3 glass | |
Outer tube diameter and glass thickness | Ø47±0.7mm; Glass thickness 1.6±0.15mm | |
Ø58±0.7mm; Glass thickness 1.6±0.15mm | ||
Ø70±0.7mm; Glass thickness 2.0±0.15mm | ||
Inner tube diameter and glass thickness | Ø37±0.7mm; Glass thickness 1.6±0.15mm | |
Ø47±0.7mm; Glass thickness 1.6±0.15mm | ||
Ø58±0.7mm; Glass thickness 1.6±0.15mm | ||
Tube length | 1200mm,1500mm,1600mm,1800mm,1900mm,2000mm,2100mm etc | |
Absorption coating property | Coating material | AL/AL-ALN |
Sediment method | Single Target magnetron sputtering plating | |
Absorptivity | Absorptivity:α =0.90~0.93 (AM1.5) | |
Emission ratio | Emission: ε=0.05~0.075(80C±5C) | |
Vacuum degree | P≤5.0X10-3 (PA) | |
Stagnation temperature (temperature inside of empty evacuated tubes) | 220~260 C | |
Average heat loss | ULT 0.6~0.7 W/(m2 C) | |
Hail resistance | Ø25 mm | |
Pressure-endure | 1MPa |
All glass vacuum tube for solar water heater