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Short Description This type is non-pressurized solar water heater. this type must be installed on the roof and higher than the using place, then will get the pressure of hot water. there is no heat pipe in the vacuum tube but heat water directly. so this type is simple system and low cost. ( it is pop in Southeast Asia and middle east and central America)
Specifications
1, Evacuated tube: three-target, ALN/ALN-SS/CU coating
2, Inside the water tank: 0.5mm SUS 304-2B stainless steel food grade
Uses fully-automatic seamless pulsed argon arc butt welding
3, Outside the water tank: painted steel(conventional) or SUS 304-2B(food-level stainless steel)
4, Frame: painted steel or Aluminum Alloy or Stainless steel
5, Frame gradient According to local latitude
6, Insulating layer: 50 or 45mm imported Insulating layer
7, Lowest temperature resistance: -30°
8, Color as Customer request
9, OEM is available
Spare parts for the integrated system
assistant tank-automatic water supply device, can control the water flow into the solar water heater.
Working principle
The non-pressurized system is based on the natural circulation-thermosiphon phenomenon. It's the most cost-effectiveness and environmentally friendly way to harness solar energy for hot water applications, which is unsurpassed by any other solar thermal products, for its most high efficiency, low cost, easy installation.
Advantage
1,The inner tank uses fully-automatic seamless pulsed argon arc butt welding, which can prolong the life and resist corrosion; Anticorrosion inner tank, low maintenance cost.
2,Superior heat preservation ensured by one-off molding polyurethane foam The density of the polyurethane is more than 40kg/m3 to make the thermal insulation time reach to 72 hours;
3,The vacuum tube, frame and water tank are all produced by MEIDA, so quality is very Stable and delivery is on time;
4,P&AL film is attached around the inner tank to obstruct the thermal radiation and reduce the heat lose from water tank;
5,Collector efficiency remains high even in cloudy conditions;
6,Can operate without any electricity;
7,Simple structure, Easy to install(plug in), maintenance free. High efficiency and long time performance.
8, Completely automatic operation with intelligent controller.
ps.
1. According to different demands of various users,we can design products elaborately for you., so if you ask for special size, please let us know.
3. We could also provide the the assistant tank or intelligent controller, electric element for for the integrated system