All glass evacuated solar collector tube

Description:
[China]

The All-glass evacuated tube is the key component of any solar water heater, Himin evaculated collecter tubes are produced according to new patents from Sydney University exclusively licensed to our company. It adopts new interference absorption layer, which absorb most solar relation while simultaneously suppressing the thermal emittance loss from the coating surface, thus increasing the heat collection performance by 12% compared to normal tubes. the layer also have the high optical property and thermal stability.1, The future is :(1) High temperature resistance, Stable advance coating up to 380 centigrade. (2) High cold resistance, High level vacuum ensure operation under cold weather : centigrade is low than -40 (2) High absorbability efficiency. High solar-thermal conversion: the absorption ratio =0.94-0.96.(3) Low heat loss: the emission ratio 0.04~0.06. (4) Structure: All glass coaxial double-layer tubes(5) Material of coating: AlN/AIN-SS/Cu(6) Vacuum level: P≤5×10-3pa(6) Transmittance of Outer Tube: 0.91(7) Heat-loss coefficient: ≤0.6w/ m2*℃)(8) Bearing hailstone ability: hailstone diameterФ25mm(9) Pressure-endure ability: 1Mpa(10) Long time warranty to 15 years2, Remarks: we offer OEM products with your logo (1) Our tube lenth: ranging from 300 to 2100mm (2) Inner tube diameter: ranging from 37 to 47mm (3) Outer tube diameter: ranging from 47 to 58mm 3, The specification is as follows: (1) Models: Ф47×150a) Weight: 1.35±0.12kgb) Outer tube diameter: Ф47±0.7mmc) Inner tube diameter: Ф37±0.7mmd) Outer Tube thickness: 1.6±0.15mme) Inner tube thickness: 1.6±0.15mmf) Tubes length: 1542±4mm(2) Models: Ф58×180a) Weight: 2.29±0.18kgb) Outer tube diameter: Ф58±0.7mmc) Inner tube diameter: Ф47±0.7mm d) Outer Tube thickness: 1.8±0.15mme) Inner tube thickness: 1.6±0.15mmf) Tubes length: 1812±4mm(3) Models: Ф58×192a) Weight: 2.45±0.20kgb) Outer tube diameter: Ф58±0.7mmc) Inner tube diameter: Ф47±0.7mm d) Outer Tube thickness: 1.8±0.15mme) Inner tube thickness: 1.6±0.15mmf) Tubes length: 1932±4mm(4) Models: Ф58×210a) Weight: 2.67±0.22kg b) Outer tube diameter: Ф58±0.7mmc) Inner tube diameter: Ф47±0.7mm d) Outer Tube thickness: 1.8±0.15mme) Inner tube thickness: 1.6±0.15mmf) Tubes length: 2100±4mm