triple elements hard borosilicate solar evacuated tube
$1.1
/piece
price excl.VAT
Negotiable
- Minimal order
- 100 pieces
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Product Specifications
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Product Description
Overview
Quick Details
Place of Origin: Zhejiang, China
Brand Name: Sanneng
Model Number: SN-V5818
Type: Part of solar water heater
Application: Water Heater
Pipe Material: Glass
Color: black blue
longth: 1800MM
diameter: 58mm
Use: Absorb sun light and Heat water
vacuum tube composition: copper (Cu)and silica glass
Supply Ability
Supply Ability: 5000 Piece/Pieces per Day
Packaging & Delivery
Solar water heater vacuum tube :
size:
* 47mmx1500mm
* 47mmx1800mm
* 58mmx1800mm
* 70mmx1800mm
* 70mmx2000mm
composition: borax and silica glass
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 |
Starts up fast and collects solar energy fully.
Unique super pure copper surface, allowing lower reflection and minimal heat loss.
High level vacuum ensure operation under cold weather.
Long time warranty to 15 years.
Looking forward to having business with you in the near future!
Vacuum tube showing:
Supply Ability
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Packaging and Shipping
Lead time
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Port
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