Heat Pipe Vacuum Tube Solar Hot Water Heater

Compact Pressurized Solar Water Heater System, which made up of heat pipe vacuum tube, galvanized frame, storage tank, electric pump, controller, etc.
They are usually more expensive than passive systems but are also more efficient. Especially in cloudy days or sunless days.
Work Principle:
There are two vacuums in an all-glass heat pipe, the one in the inner tube and the one between the inner and the outer tube. The inner tube absorbs the solar energy, which is transferred to heat. The temperature in the inner tube rises up and the transfer fluid in the inner tube vaporizes. The vapor rises up to the condenser where it transfers the heat to the water in the tank, so the vapor loses its heat and condenses, then flows down to the bottom of the tube. Such a circulation will continue as long as the sun shines

Specifications:
1. Tank capacity: 100L, 150L, 200L, 250L, 300L;
2. Outer tank: Color steel 0.50mm thickness;
3. Inner tank: Food grade SUS304-2B stainless steel 1.20mm thickness;
4. Evacuated tube: 47*1800, 58mm*1800mm, etc;
5. Preserved layer: 60mm foamed polyurethane;
6. Heat preservation: 72hrs;
7. Hail resistance: 25mm;
8. Bracket: Stainless steel, galvanized steel plate, aluminum alloy.

High efficiency solar water heater
Characteristics:
This model works with high pressure, so it can be connected with city water directly. With the heat pipe in the vacuum tube, therefore no water in the tube, each tube can work alone, so the solar colletcor can work even one tube is broken.

1. Highly efficient absorber of high performance with daily average efficiency over 50%
2. Start up quickly, the water is heated rapidly by heat pipe which will transfer the heat energy into the tank
3. Withstand pressure of 6 bar, more comfortable to use
4. Simple structure, easy to assembly and install
5. Can be used all year even in the cold climate area
6. Long service life, can be use over 15 years

Technical Parameters:
Inner tank: SUS 304-2B/1.2mm
Outer tank: Galvanized steel/0.41mm
Insulation: High density polyurethane foam 50mm
Vacuum tube: 58*1800mm
SS-CU-AIN/ALN coating
Bracket: Galvanized steel 1.5mm
0-50 degree
Max pressure: 6 bar
Capacity: 100L 150L 200L 250L 300L