Model: Vacuum tube solar water  heater RNC

Features:

2) Thickness: 0.5mm

3) Outer Tank:  Stainless Steel

4) Thickness: 0.4mm

5) Insulating Layer: Foaming Polyurethane

6) Thickness: 55mm

7) Thermal Transfer Rate: 0.022W/m.K

8) Sealing Rubber: Silicone Rubber

9) Dustproof Rubber: EPDM

10) Optional Electric Booster: 1500W-3000W

11) Highly Efficient All Glass Vacuum Tube

12)Capacity:60L~300L

1.The evacuated tube with patented interferential film technology maintains its high efficiency over a wide range of ambient temperatures and heating requirements; it can efficiently absorb diffuse solar radiation present in cloudy conditions.

2. The heat preservation layer is made with one-off foaming at constant-temperature under high-pressure; high temperature slaking processing creates even, high dense polyurethane foam, which features by low thermal conductivity, stable performance and excellent heat preservation; the inner water tank is made of SUS304 stainless steel (it is high in contents of Chromium and Nickel) and is welded by automatic argon arc welding process to realize corrosion resistance and long service life.

3. The frame is made of hot galvanized plate, and more than 14 surface anti-corrosion processes are adopted, such as degreasing, phosphating, electrostatic spraying, high temperature slaking, etc, which makes the frame be steady and anti-corrosion as well as long service life, more than 10 years.

4. Auxiliary heating system, passed the China Compulsory Certification; has double overheat protection (stop the machine's operation by the temperature controller at 70℃; by breaker at 110℃), and creepage protection. Electric booster is made of Incoloy 800 to realize the dry burning and corrosive resistance, which is safer.