Solar vacuum tube
1.10years warranty time.
3.OEM is welcome!
Solar vacuum tube
Features Product Name: Three-high vacuum tube Place of Origin: China Structure: All glass concentric dual tube structure Glass material: Borosilicate glass Outer tube diameter and thickness: 58+/-0.7mm/1.6mm Inner tube diameter and thickness: 47+/-0.7mm/1.6mm Length of tube: 1800(+/-5mm) Construction: Graded AL-N/AL selective absorption coating Heat-absorbing rate: more than 92% Emission of heat: less than 8% (80degree) Vacuum degree: less than 0.005Pa Solar radiance exposure: less than 2.8MJ/M2 Calories absorption: 9.1MJ/M2 Average heat loss: less than 8.6W/(M3.K) Pressure-endure ability: 0.2Mpa Bearing hailstone ability: 25mm in diameter Lifespan: 15years. High solar-thermal conversion and low heat loss Stable advanced coating up to 380 degree Long time warranty to 10 years High level vacuum ensure operation under cold weather Vacuum Tube technology: Models 47mm 1500mm 58mm 1800mm Weight 1.35kg 2.29kg Structure All-glass-coaxial All-glass-coaxial Double-layer tubes double-layer tubes Outer tube diameter 47mm 58mm Inner tube diameter 37mm 47mm Outer Tube thickness 1.6mm 1.8mm Inner tube thickness 1.6mm 1.8mm Material of coating Al N/Al N-SS/Cu Al N/Al N-SS/Cu Absorptance 0.94~0.96 0.94~0.96 Emittance 0.04~0.06 0.04~0.06 Vacuum P≤5*10-3pa P≤5*10-3pa Stagnation temperature 270~300 270~300 (height) Heat-loss coefficient ≤0.6w/ m2) ≤0.6w/ m2) Bearing hailstone ability 25mm 25mm Pressure-endure ability 1MPa 1MPa
Haining Jishen Solar Energy Technology Co., Ltd. is a modernized hi-tech solar water heater enterprise which is specialized in research and application of solar energy and manufacture of solar water heaters.
The company proceeds online with the advanced technology and inherits from its managing experience, and is now working in innovative item production. Aiming to the clients, the company has won a great reputation among the clients.
We have two brands of products --"Jishen solar ... View detail