Product Description

PRODUCT FEATURE
 
Material: high borosilicate 3.3 glass.
Structure: all-glass double-tube co-axial structure.
Color: blue or purple golden.
Size: *7mm×***0mm, *7mm×***0mm; *8mm×***0mm, *8mm×***0mm, *8mm×***0mm; *0mm×***0mm, *0mm×***0mm.
Thickness: 1.6mm/2.0mm.
Warranty: *5 years.
High absorptance: *3%~*6%(AM1.5).
Low emittance: 0.*4~0.*6(*0°C±5°C).
 
PRODUCT STRUCTURE                                              
Inner tube
Outer tube
Selective coating
 
WORKING PRINCIPLE                                               
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                     
 

Name	CHAODA Three-target all-glass vacuum tube
Structure	All-glass double-tube co-axial structure
Glass material	High borosilicate glass 3.3
External Pipe Diameter & Thickness	=*7±0.7mm&=1.6mm, =*8±0.7mm&=1.6mm, =*0±0.7mm &=2.0mm,
Internal Pipe Diameter & Thickness	=*7±0.7mm &=1.6mm,    =*7±0.7mm &=1.6mm, =*8±0.7mm &=1.6mm,
Pipe Length	**0mm, ***0mm, ***0mm, ***0mm, ***0mm,***0mm, ***0mm, ***0mm.
Coating layers	Cu/SS-ALN (H)/SS-ALN (L)/ALN
Coating method	Three target magnetron sputtering plation
Thickness	1.6mm/2.0mm/2.2mm
Specific absorption	as=0.*3~0.*6(AM1.5)
Emission ratio	Σh=0.*4~0.*6(*0°C±5°C)
Vacuum tightness	P≤5.0×***3Pa
Idle Sunning Property Parameters	Y= **0 ~ **0m². °C/KW
Solar Radiation for Obtaining a Preset Water Temperature	H≤3.7 MJ/ m²(*7), H=2.9~3.2 MJ/ m²; H≤4.7 MJ/ m²(*8), H=3.7~4.2 MJ/ m².
Average Heat Loss Coefficient	ULT=0.4~0.6W/ (m². °C)
Pressure-Endure Ability	0.6Mpa
Hail resistance	*5mm/ *0mm
Lifetime	*5 Years
Color	blue or purple golden

TECHNOLOGICAL PROCESS                                         
 
1. Raw glass material
2. Outer tube——for one end, pull a tail pipe by high temperature——install getter.
3. Inner tube——for one end, form a round heater by the temperature——clean and stoving——coated
4. Assemble the inner tube and outer tube altogether.
5. Seal the inner tube and outer tube and anneal/bake out
6. Exhaust and vacuumed
7. Baking away to form a mirror plane/face
8. Packaging
 
AUTHENTICATION CERTIFICATES                                    
ISO***1:***8
CE
                                         
PRINCIPLE MARKET                                                
Popular country: Europe, USA, Canada,Mexico, India, Pakistan, Egypt, United Arab Emirates,South Africa, Brazil, the Mid East, Africa and Mid-South America, 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.
*8/***0mm tube: *0pcs/box, *5pcs/box.
*7/***0mm tube: *5pcs/box, *0pcs/box, *4pcs/box.

Remarks:
 
Payment: For LCL/Sample order, the wooden box fee and inland transportation fee will charge for extra, we accept **0% T/T in advance;
For FCL order, we accept *0% T/T in advance, *0% balance is upon the copy of B/L.
 
Warranty: *5 years for the 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 *2 days for standard container, within *5 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                                                       
If you are interested in our Products, welcome to contact us!
 

Country:	China
Model No:	CDMT- 1
FOB Price:	1.46 ~ 1.95 / Piece ( Negotiable ) (Negotiable) Get Latest Price
Place of Origin:	Haining City
Price for Minimum Order:	1.46 per Piece
Minimum Order Quantity:	1000 Piece
Packaging Detail:	If LCL/sample order, in order to avoid be broken in shipping, we will pack the tubes with wood box.
Delivery Time:	within 3 days for sample order; within 12 days for
Supplying Ability:	10000 Piece per Day
Payment Type:	T/T, L/C, Western Union
Product Group :	Solar Vacuum Tube