Vacuum Tube for Solar Water Heater

INTRODUCTIONS                                                                                      

Vacuum Tube consists of the inner and outer tubes, which are cut and coated on the condition of high temperature. The inner tube is coated in the three target magnetron sputtering plating equipments which is the newest three target technology and intorduced from German. Using the coating material of argon and nitrogen aims at becoming three membranes Cu-SS-ALN. It takes about 60 minutes. Then, melting the inner and outer tube together and evacuating empty in the vacuum machine. Evacuated tube is core of the solar water heater.  Its performance lies on the coating technology, The three-target evacuated tube rises the heat more than 12%.  

 1) High temperature: with special interference-layer it could bear the high temperature reach to 300 centigrade degree, and the coating will not shed and aging. 

  2) Super anti-freeze: Super-copper launches mirror, low reflectance, less heat loss ,good absorber results in cold environment, can also generate hot water. 

 3) Efficient absorption ratio: High absorption is up to 96%, reflection reduces 65% heat increases 12%. Higher temperature, more hot water.

PRODUCT FEATURE                                                                                 

Material: high borosilicate 3.3 glass.

Structure: all-glass double-tube co-axial structure.

Color: blue or purple golden.

Size: 47mm×1500mm, 47mm×1800mm; 58mm×1500mm, 58mm×1800mm, 58mm×2000mm; 70mm×2000mm, 70mm×2100mm.

Thickness: 1.6mm/2.0mm.

Warranty: 8 years.

High absorptance: 93%~96%(AM1.5).

Low emittance: 0.04~0.06(80°C±5°C).

PRODUCT STRUCTURE                                                                            

WORKING PRINCIPLE                                                                               

High Efficiency Solar Vacuum Tube consists of the inner and outer tubes, which are cut and coated on the condition of high temperature.

Solar Vacuum Tubes are the absorber of the solar water heater.

They absorb solar energy converting it into heat energy for use in water heating.

The hot water rise to water tank and the cool water fall to the bottom of the vacuum tube.

As the gravity theory, the hot water and cool water are continuously circulation in the vacuum tube and water tank.

TECHNICAL PARAMETERS & SPECIFICATIONS                                   

TECHNOLOGICAL PROCESS                                                                   

AUTHENTICATION CERTIFICATES                                                          

PRODUCT DISPLAY                                                                                 

 ADVANTAGES                                                                                          

1. Excellent performance of absorbing, but low heat loss, Especially adapted to sever cold regions,(super heat preservation). With the help of DC magnetron sputtering technology, the absorptance of 0.94 - 0.96 and emittance of 0.04 - 0.06 has been achieved.  

2. Excellent resistance of burst. Improved molecule structure of plated selective coating makes the highest of vacuum tube working temperature as high as 300 centigrade degree, effectively preventing the coating from bursting, aging, discoloring, function attenuating because of long time burn under the sun, prolonging its life span to 15 years.

3. Excellent resistance of corrosion, long life span ( up to 15 years) Standard  

4. Reducing the fouling on the tube wall, keeping water clean.

5. The efficiency of a vacuum tube solar hot water heater is dependent upon a number of factors, one important one being the level of evacuated radiation (insolation) in your region.

PRINCIPLE MARKET                                                                                

Popular country: Europe, USA, Canada,Mexico, India, Pakistan, Egypt, United Arab Emirates,South Africa, Brazil, and etc.

PRODUCT APPLICATIONS                                                                       

1. Solar water heater.

2. Solar engineering system.

3. Solar air collector.

PACKING & CARTON DETAILS                                                                

Export standard carton, with safety foam in every carton.

58/1800mm tube: 10pcs/box, 15pcs/box.

47/1500mm tube: 15pcs/box, 20pcs/box, 24pcs/box.

Remarks:

Payment: For LCL/Sample order, the wooden box fee and inland transportation fee will charge for extra, we accept 100% T/T in advance;

For FCL order, we accept 30% T/T in advance, 70% balance is upon the copy of B/L.

Warranty: 8 years for vacuum tubes; for solar glass vacuum tube, we will send 1% of all tubes as compensation for free.

Delivery time: within 3 days for sample order; within 12 days for standard container, within 15 days for OEM order;

Packing details:

If LCL/sample order, in order to avoid be broken in shipping, we will pack the tubes with wood box.

FCL Order: export standard carton, five layers hard paper carton with safety foam in every carton.

CONTACT US                                                                                          

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