solar vacuum tube
1. CE ISO CCC certificate
2. 15 years' gurantee
3. OEM service offered
Price Terms:FOB,CIF,EXW
Payment Terms: T/T,Western Union,MoneyGram,L/C
Minimum Order: Negotiatable
Delivery Port: Customized
Contact Supplier
Packaging Detail: 9/10/12pcs per export carton with foam bracketsdanielshen at denosolar.com
Delivery Detail: 10 days after receipt of payment
solar vacuum tube
1, Three-target Solar vacuum tube for solar water heater
2, ISO900:2000, CE certificate
3, 0.91 transmittance of the outer tube
Specifications:
1, Vacuum tube is consists of two layer of glass tubes
2, ISO900:2000, CE certificate;
3, 0.91 transmittance of outer tube
4, The outer tube is made of extremely strong transparent quartz sand which can resist impact from hail up to 25mm in diameter.
5, The inner tube is also made of quartz sand, but it is coated with a special selective coating with strong heat absorption and lowest heat loss.
6, The air is evacuated from the space between the two glass tubes to form a vacuum, so it eliminates heat loss.
7, This why the tubes are able to absorb the energy from infrared rays which can pass through clouds.
8, So it also can operate in low temperature and low sunlight medium.
| MODEL ITEMS | GB(single target) | |
| Configuration | Double-layer concentric boronsillicate glass tubes | |
| Glass thermal expansion coefficient | 3.3*10-6/ | 3.3*10-6/ |
| Diameter of outer tube | φ47±1mm | φ58±1mm |
| Diameter of absorber tube | φ37±1mm | φ47±1mm |
| Thickness | 1.5mm(±0.1mm) | 1.6mm(±0.1mm) |
| Transmittance of outer tube | 0.91 | 0.91 |
| Length | 1500±5mm | 1800±5mm |
| Solar selective absorbing coating | Al-N/Al | Al-N/Al |
| Absorptance(AM1.5) | ≥0.89 | ≥0.89 |
| Emittance | ≤0.0880 | ≤0.0880 |
| Vacuum | P≤5*10-3Pa | P≤5*10-3Pa |
| Stagnation parameter | ≥230/KW | ≥230/KW |
| Average Heat loss coefficient | ≤0.85W/(*) | ≤0.85W/(*) |
| Solar irradiation under stagnation | ≤3.5MJ/ | ≤3.5MJ/ |
| Hailstone resistance | hailstone diameter25mm | hailstone diameter25mm |
| Pressure-endure ability | 0.6mPa | 0.6mPa |
Model No.:
Features: Three target solar vacuum tube has advantages of super absorbance, low heat loss .quick temp. rising and reliable quality.
Model No.: JPS-VT-07
Features: *CE,ISO9001,ISO14001
*high efficient heat pipe
*Tri-element vacuum tube
Model No.: SF
Features: Silicone Ring
Silicone material Ring
High quality Silicone Ring
Non-corrosive Silicone Ring
Competitive price Silicone Ring
Model No.:
Features: vacuum tube is good quality and after-sell service.
Model No.:
Features: solar vacuum tube
High absorption efficiency,widelyapplicant to family solar system and commercial solar water system
Model No.: SF
Features: Silicone Ring
Silicone material Ring
High quality Silicone Ring
Non-corrosive Silicone Ring
Competitive price Silicone Ring
Model No.: solar tank
Features: solar water tank
1. CE,ISO9001, size:100-500L
2.stianless or painted board outter
3.short lead time
4.5 years warranty
Model No.: TJSC series
Features: OEM offered
5 years guarantee
solar geysers
6 Bar working pressure
High quality & resonable price
Model No.: seperated tank
Features: Seperated tank: A:.low pressure type;
B: HIGH PRESSURE TYPE
C:Copper coil type
Model No.: P3
Features: Flat collectors are the most common solar collectors for use in solar water-heating systems in homes and in solar space heating
Model No.: FR
Features: solar geyser collector, or Solar Hot Water Systems
Model No.:
Features: Common Vacuum Tube
Use: Solar Water Heater
Material: galss
Model: 47-1500, 58-1800
Weight: 1.5~2.0 KGS/PCS