2015 Top selling lower cost of solar heating for pool

2015 Top selling lower cost of solar heating for pool   Product Description Application of VISION Vacuum Tube Solar Collector: VISION manifold vacuum tube non pressure solar collector generally work in active open loop system with connection in series and parallel for large-scale solar water heating applications from 500 - 500,000 liter hot water, such as hot water for hotels, factories, hospitals, schools, swimming pools, space or floor heating, etc.   Also the VISION vacuum tube collector can be used in passive thermosiphon solar water heating system, with a hot water storage tank placed above the collector, because of the low water flow we suggest the passive thermosiphon system not larger than 1,000 Liter.    Technical Data:  

Vacuum Tube	Size (mm)	Φ58*1800 / Φ47*1500
	Tube (pcs)	40 / 50 / 60 / 70
	Glass	Double layer borosilicate 3.3 glass with high vacuum
	Coating	Single-target AL/AL-ALN(H) or three-target Cu/SS-ALN
Manifold	Shape	Rectangular / Round
	Manifold tank	Food-grade stainless steel SUS304-2B / SUS316
	Manifold shell	Painted color steel
	Insulation	High-density polyurethane foaming 40MM thickness
Bracket	Shaped strong galvanized steel structure adaptable to flat or slope roof
Accessories	Anti-aging silicon seals, dustproof seals, stainless screws
Connection	1 inch male thread (larger size is available)
Collector Angle	5 ~ 90°
Hail Resistance	Φ25 mm diameter
Model Number	Solar Vacuum Tube			Aperture Area/ m2	Container Loading Qty /sets
	Size /mm		Qty /pcs		20GP	40GP	40HQ
VNC-5818CG-40	Φ58*1800		40	3.77	42	88	107
VNC-5818CG-50			50	4.71	34	70	86
VNC-5818CG-60			60	5.66	28	58	71

  Warranty: 5 years international responsibility for vacuum tube solar collector and 15 years for glass vacuum tubes due to original quality problems.   Working Theory and Parts Description: VISION VNC series Manifold Vacuum Tube Horizontal Solar Collector is one of the most economical collector with pretty high efficiency in solar water heating, it is usually be used in active open loop circulation system for direct solar water heating.   Solar vacuum tubes are plug directly inside manifold tank, when cold water in evacuated tubes is heated with solar irradiation, as the specific gravities of hot water and cold water are different, hotter water goes upward to manifold tank and colder water goes downward to glass vacuum tubes. through this continuous circulation, the cold water in manifold tank will be gradually heated, in an active open-loop solar system, the hotter water in manifold will be pumped to hot water storage tank, and the same time circulate colder tank water to manifold collector for solar heating. Features of VISION Vacuum Tube Solar Collector: 1. Most economical and practical collector for solar water heating; 2. Wide applications for hot water heating, pool heating, space heating, etc; 3. Large heating capacity from 500 to 500,000 Liter hot water; 4. Efficient direct hot water heating with big flow water circulation; 5. Strong adaptability to flat or slope roof installation; 6. Easy installation and connection with simple structure design; 7. Much safe and stable after system installation and commissioning; 8. Applicable to active open loop circulation system or passive thermosiphon system. 9. With anti-freezing protection it works well in subzero weather condition. 10. With technical support from VISION company, your system seldom has problems of breaking tubes, broken or deflated manifolds and storage tank.   Advantages of VISION  Vacuum Tube Solar Collector:   Comparing with heat pipe solar collector: 1. Much more economical for water heating application; 2. Larger hot water heating capacity for projects; 3. Fast direct solar water heating with big flow rate;   Comparing with flat plate solar collector: 1. Much more economical for water heating application; 2. Higher efficiency and lower heat loss with vacuum insulation; 3. More tough to freezing weather condition; 4. More convenient in system parts carring and installation;     System illustration with VISION Vacuum Tube Solar Collector:   FAQ Model selection: Usually we suggest Φ58*1800MM tube solar collector which is more cost effective.   Technical support: VISION company offers design and installation instruction for customers with our 10 years installation experience.   OEM: Your LOGO information can be made on our Manifold Vacuum Tube Solar Collector and carton boxes.   ODM: Design manufacturing is available for manifold size and shape, tube length, frame structure, etc.   Packaging & Shipping Packaging Details: Export strong corrugated carton outside with polybag and styrofoam protection inside.   Delivery Detail: Within 7 - 10 days for container order quantity upon confirmed invoice or sales contract.   Our Services Fast response: Your inquiry will be replied within 24 hours via e-mail or online messenger;   Technical support: You have more than 10 years experience from VISION SOLAR for product suggestion, installation guidance, market analysis, etc.   OEM & ODM: We welcome OEM & ODM requirements for solar collector, storage tank, installation frame, and even for some out-sourcing equipments;    Sample checking: In spite of quality control in production, samples will be selected and installed to check prior to delivery;    Minimum order quantity: We offer sample sample manufacturing for customers to check VISION quality and service;    Shipping service: VISION company offers to arrange goods shipment to abroad ocean port or inland site, and if necessary to make goods insurance, customs clearance, etc;    Import certificates: VISION company offers to make Certificte Origin CO, FORM A, FORM E, FORM F, customs certification, etc.   Company Information Production & Installation Pictures:       Solar Systems Abroad with VISION Butterfly Solar Collectors: