Solar vacuum tube
Item58× 1800
MaterialBorosilicate glass 3.3
StructureAll glass coaxial double-layer tubes
Outer tube diameter58± 0.7mm
Inner tube47± 0.7mm
Outer Tube thickness1.8± 0.15mm
Inner tube thickness1.6± 0.15mm
Tubes length1800± 2mm
Material of coatingAlN/AIN-SS/Cu
Absorptance≥ 0.92
Emittance≤ 0.08
Transmittance of Outer Tube0.91
VacuumP≤ 5× 10-3pa
Stagnation temperature (Height)≥ 250 centigrade
Heat-loss coefficient≤ 0.6w/ m2*centigrade)
Bearing hailstone abilityHailstone Diameter 25mm
Pressure-endure ability1.0MPa
Changzhou Daily solar Co., Ltd. is a high-tech company that focused on researching, developing, and manufacturing related solar energy products. With the support from Energy & Environment Engineering Research Institute of Changzhou University and Engineering Heat Physics Institute of Southeast University, the company developed advanced solar water heater system which provides perfect combination with the architecture design.
Maintenance-Free Design and Manufacturing: High-efficient flat plate solar collector, supreme water tank, patented energy-free heat pump and anti-freezing technology from Canada make sure the good quality of the system.
Company Mission: Technology, Innovation, and Customer Service is the first priority. Our Design Mission is to provide the reliable, low invest, and low operation cost system to our customer.
Professional Installation and service: A professional installation team is another key element of the success of the company.
Daily Solar water heater system has been applied in hotels, schools, hospitals and real estate projects, well received by customers. And the patented solar air heating system used for heating, drying and fresh air created a new field of the solar thermal industry.
Less carbon, Better Life!
