Pressurized Vacuum Tube Solar Water Collector

Product Details:
Pre-heated solar water heater also relies on the natural circulation of water between the collector and the tank (that is tubes absorb solar energy, and heats the water inside the tube, hot water rises, cold water flows down).
It differs from compact non-pressurized solar water heater because it gets a copper coil inside the inner tank. The hot water rises from the tube into the tank, and heats the copper coil and finally heats the water inside the copper coil. Therefore the water tank is just as heat storage tank.
So the hot water we use is actually from the copper coil, it is more clean, and even drinkable (as the copper can purify the water). The whole system also works at 0.2MPA.
Necessary parts:
Tank( with a copper coil inside), the three-high vacuum tube, bracket,assistant tank.
Optional parts:
An electric heater--when without sunshine, etc: In rain days and winter days, use for heating water.

Model	Absorb area (m)	Water tank capacity (L)	20GP/40GP loading qty (sets)
JY-2X-47/1500-18	0.93	100	60/116
JY-2X-47/1500-20	1.04	110	56/108
JY-2X-47/1500-24	1.24	130	47/91
JY-2X-47/1500-30	155%	165	37/85
JY-2X-58/1800-18	162%	150	37/71
JY-2X-58/1800-24	194%	200	32/61
JY-2X-58/1800-30	243%	250	25/48
JY-2X-58/1800-36	5.12	300	18/37

Specifications:
1)Coil material: red copper ? 12mm, thickness 0.8mm.
2) Bracket: 1.5mm stainless steel.
3) Outer tank: stainless steel plate 0.5mm thickness.
4) Inner tank: SUS304-2B food grade stainless steel 0.5 mm thickness.
5) Tank Capacity: 150L - 360L.
6) Vacuum tube: 58 mm x 1800 mm.
7) Insulating layer:  polyurethane 60mm.
8) Pressure: 6 Bar.
9) Heat preservation: 72hrs.

10) Hail resistance: 25mm.