Evacuated Vacuum Tube for Solar Water Heaters is an innovative and energy-efficient solution for harnessing solar energy to heat water. Designed with advanced vacuum insulation and high-performance glass, these tubes maximize heat absorption while minimizing energy loss. Ideal for residential, commercial, and industrial use, they provide reliable performance in various climates, including low-temperature conditions. Their durable, weather-resistant design ensures long-lasting operation with minimal maintenance.
Key Features
- High Thermal Efficiency: Utilizes vacuum insulation to retain heat and reduce energy loss.
- Durable Construction: Made with borosilicate glass for strength and thermal stability.
- All-Weather Performance: Operates efficiently in low temperatures and cloudy conditions.
- Corrosion Resistance: Long-lasting performance in humid and challenging environments.
- Eco-Friendly: Reduces reliance on non-renewable energy sources by utilizing solar energy.
- Easy Integration: Compatible with a wide range of solar water heating systems.
Evacuated Vacuum Tube Technical Table
| Feature | Specification |
|---|---|
| Material | Borosilicate Glass |
| Insulation | Vacuum Sealed |
| Length | 1800 mm (Kenya’s Available Model) |
| Outer Diameter | 58 mm |
| Inner Diameter | 47 mm |
| Heat Retention | > 95% |
| Operating Temperature | -30°C to 250°C |
| Lifespan | 15+ Years |
Features and Specifications
3.3 borosilicate glass with good light transmission and hard strength can resist temperature difference up to 200 °C, with strong resistance to cold and heat shock, with low burst probability.
The circular structure automatically tracks the sunlight, which maintains high efficiency throughout the day and provides stable heat supply.
- The vacuum between the two glass tubes reaches 5*10-4Pa with good insulation performance and small heat loss, which maintains a high efficiency for a long time.
AL/N/AL/SS/CU selective absorbing film coating with absorption rate >93%, reflectivity<8%, high thermal efficiency.
Excellent magnetic sputter coating process control, selective absorbing film adhesion, high temperature and low temperature resistance, not easy to fall off, long life.
20 years service life and low cost.













































