offer CE
easy to install
bear big pressure
collect heat from sun quickly
Price Terms:FOB,CIF,EXW
Payment Terms: T/T,Western Union,MoneyGram,L/C
Minimum Order: Negotiatable
Delivery Port: Customized
Contact SupplierPackaging Detail: carton with foam inside and shrinkable tape outside,6/8/10/12pcs packing in one carton or according to our customers' requirements
Delivery Detail: 15-20days after advance deposit
The specification of the product
Dimension | 47 | 58 |
Material of Tube | 3.3 High Boron Silicon | 3.3 High Boron Silicon |
Glass Expansion Ratio | 3.3±0.1×10-6K-1 | 3.3±0.1×10-6K-1 |
Outer Diameter of Tube | 47±0.7 | 58±0.7 |
Inner Diameter of Tube | 37±0.7 | 48±0.7 |
Thickness of Glass | 1.6±0.15 | 1.6±0.15 |
Transmittance | ≥0.89 | ≥0.89 |
Selective Coating | SS-CU-AL-N/AL | SS-CU-AL-N/AL |
Absorptivity | ≥0.86(AM1.5) | ≥0.86(AM1.5) |
Emissivity | ≤0.080(80±5) | ≤0.080(80±5) |
Vacuum Degree | ≤5.0×10-3Pa | ≤5.0×10-3Pa |
Collecting Performance Parameter under Sunshine | ≥190m2/kw | ≥190m2/kw |
Hailstone Resistance | 30mm | 30mm |
This is the number of the pipe put the container.
Container | Size | quantity |
20’GP | 47*1500 | 4700PCS |
58*1800 | 2400PCS | |
40’GP | 47*1500 | 9500PCS |
58*1800 | 4900PCS | |
40’HC | 47*1500 | 11400PCS |
58*1800 | 5880PCS |
Product feature :
1 Coating time is the most important part of solar vacuum tubes, our product coating time for more than an hour, membrane layer thickness, high absorptivity. We use a vacuum magnetron sputtering film coating, it's advantage is the whole surface is evenly sputtering, improve the coating quality, make the film has a good selection of absorption, wear resistance, corrosion resistance sex.
2 Our products high vacuum degree, temperature of heating to 450 degrees Celsius, the air, keep out off vacuum, play a good heat preservation effect.
3 We use 304 solar spring clip next, can better support at the bottom of the tube, make the vacuum tube solar long service life. Our sealing even, no bubble, which uses a long time, also won't make internal and external pipe fall off. Make us the life span of the vacuum tube for as long as 15 years.
4 Our raw materials with 3.3 high-borosilicate glass which can resist impact from hail up to 30mm in diameter, high transmittance, heat-proof impinge good, optical strong stability