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General vacuum solar tube:
1.with fast thermal collecting efficiency;
2.with high heat resistance;
3.15years warranty for tube

Solar collector tube technology:

Material

Apply for high 3.3 borosilicate glass

Models

Φ47/58

Structure

All-glass-coaxial double-layer tubes

Outer tube diameter

47±0.7mm /58±0.7mm

Inner tube diameter

37±0.7mm/47±0.7mm

Tube thickness

1.6±0.15mm/2.0±0.15mm

Absorptance

0.94~0.96

Emittance

0.04~0.06

Transmittance of outer tube

0.91

Stagnation temperature(height)

270~300oC

Presure-endure

1Mpa


1.Stable advanced coating up to 380.
2.Starts up fast and collects solar energy fully.
3.Can resist impact of hail:hailstone diameter 25mm.
4.High level vacuum ensure operation under cold weather.
5.Long time warranty for 15 years.
6.The evacuated tube with superconductive heat-pipe is the most advanced product in the world.
7.The current products mainly include:diameter:Φ47/58mm;length:800/1200/1500/1600/1800/1900/2000/2100mm.
8.And we can also provide products as your request.9.Looking forward to having business with you in the near future



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