hot buy three high solar vacuum tube

1.heat pipe for solar water heater
2.solar collector with copper inside
3.Certification:ISO9001-2000
4 offer CE
The specification of the product
name
47*1500mm
58*1800mm
Air drying performance parameters
≥190 m2*°C/kW
≥190 m2*°C/kW
Stuffy sun radiation exposure
≤3.7MJ/ m2
≤4.7MJ/ m2
Average heat loss coefficient
≤0.85w/ (m2*°C)
≤0.85w/ (m2*°C)
Vacuum performance
≤5×10-2pa
≤5×10-2pa
Pressure
0.6MPa
0.6MPa
Heat shock

0 °C ice water resistant to three ≥ 90 °C hot water and the impact of a
lternate

Impact
Anti-30mm ball falling from a 450mm high vertical

Air drying temperature
>250°C
>250°C
Absorption rate
>92%
>92%
Emissivity
≤8%
≤8%
Freezing
>-40°C
>-40°C
Weight(kg)
≥1.3
≥2.0
Volume(L)
1.3
2.7
Length Tolerance(mm)
±7.5
±9
Outer tube diameter(mm)
47±0.7
58±0.7
Outer tube wall thickness(mm)
1.6±0.15
1.6±0.15
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 400 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 25mm in diameter, high transmittance, heat-proof impinge good, optical strong stability