3 target vacuum tubes with high efficient absorption,solar collector
3 target vacuum tubes with high efficient absorption,solar collector

3 target vacuum tubes with high efficient absorption,solar collector

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Price:RUB 112.95 - RUB 188.25

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Product Overview

Description

Specifications

Three-high vacuum tube:
1.widely used for solar water heater
2.ensure operation in cold winter
3.15 years' warranty for tube

Three-high vacuum tube technology:

 

Dimension

Φ47 

Φ58

Material of Tube

3.3 High Boron Silicon

3.3 High Boron Silicon

Glass Expansion Ratio

3.3±0.1×10-6K-1

3.3±0.1×10-6K-1

Outer Diameter of Tube

Φ47±0.7

Φ58±0.7

Inner Diameter of Tube

Φ37±0.7

Φ48±0.7

Thickness of Glass

1.6±0.15

1.6±0.15

Transmittance

≥0.89

≥0.89

Selective Coating

SS-CU-AL-N/AL

SS-CU-AL-N/AL

Absorptivity

≥0.86(AM1.5)

≥0.86(AM1.5)

Emissivity

≤0.080(80±5)

≤0.080(80±5)

Vacuum Degree

≤5.0×10-3Pa

≤5.0×10-3Pa

Collecting Performance Parameter under Sunshine

≥190m2/kw

≥190m2/kw

Hailstone Resistance

25mm

25mm

 

High frequency solar tubes advantages 
1. Long life 
Film resistance thermal diffusion double layer structure, the effective protection of the internal absorption layer film 

structure is not easy to change; Use of high melting point of titanium metal as a coating material --- high strength, high temperature, corrosion and other outstanding features, the film lifetime. 

2. High absorption 
Expand the new coating of solar selective absorbing coating on the UV-visible light --- the absorption of solar energy are selectively absorbed most of the band, so that the absorption rate of tube up to 96%. 

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