1. Water tanks are made by machine. Flower design pressed on stainless steel shell, beautiful and durable. Inner water tank is made of supper SUS 304 food grade stainess steel plates, welded by argon arc. Water is pure and drinkable.
2. Heat insulation of water tanks adopts polyurethane's celluar, thickness is 55mm.
3. Aluminum alloy (or stainkess steel) supports are connected by bolts and nuts, firm and stable, easy to install.
4. Between vacuum tubes and inner water tank, we adopt milk white silicon rings to connect and seal them.
5. The tubes and supports are adjustable, power bearing is average, and can ensure the vacuum tubes to use long time.
Performance Datas Vacuum Tubes
1. Whole glass vacuum tubes adopt super hard borax and silica glass;
2. Absorption: ≥ 93%, thermol radiation rate: ≤ 6%(100c)
3. Temperature when exposed to sun without water: 250c, 2.5hours to boiling if using single tube;
4. Resist 25mm hail, life scale can last 20years.