1) coating AL-ALN
2) the absorption layer is usually to 9 gradations
3) satisfied by common families
4)long life
Port: Shanghai or Ningbo
Minimum Order Quantity: 1000 Piece/Pieces
Supply Ability: 8000 Piece/Pieces per Day
Payment Terms: L/C,T/T
Contact Supplier
Packaging Detail: corton and foam board
Delivery Detail: 10-15 days after receiving the payment
2. Absorptionlayer and antireflective layer are compound of Nitrogen and aluminium ion.Membranous layer is about 0.3 micron.
3. The coated layers of ordinary vacuum tube is Al-N/Al, the absorption layer is usually to 9 gradations. The sun's rays are absorpt by it, and the absorption of high performance gradually .
4. The common family will satisfy with it’s heat collect.
| Configuration | General solar collector tube |
| Material | Borosillicate glass |
| Glass thermal expansion coefficient | 3.3×10-6 |
| Diameter of cover tube | 47mm/58mm |
| Diameter of inner tube | 37mm/47mm |
| Thickness of glass | 1.6mm |
| Transmittance of cover tube | 0.91 |
| Length | 1200 / 1500 /1800mm |
| Solar selective absorbing coating | Graded Al-N/Al selective surface, sputtering |
| Solar absorptance(AM1.5) | 0.9 |
| Emittance(80) | 0.08 |
| Stagnation Temperature | ≥200 |
| Heat loss coefficient | ≤0.80W |
| Impact resistance | Withstand hailstone of 25 mm in diameter |
| Strength(pressure tested) | 1MPa |
Model No.: HX-WH23UWCW
Features: 1.18 Years Warranty
2.Solar keymark.CE.ISO.products
3.OEM approved
4.Vertical wall-mounted solar water heater
5.Efficiently
Model No.: HX-WH23UWCW
Features: 1.18 Years Warrant
2.Solar keymark.CE.ISO.products
3.OEM approved
4.Solar water heater drawing
5.Temperature rise up fast
Model No.: HX-WH23UWCW
Features: 1.18 Years Warranty
2.Solar keymark.CE.ISO.product
3.OEM approved
4.Compact non-pressurized solar water heater
5.Efficiently
Model No.: HX-WH12CTAW
Features: 1.Solar keymark.CE.ISO product
2.18 Years Warranty
3.Compact vacuum tube solar water heater
4.High efficiently
5.OEM approve
Model No.: HX-WH23UWCW
Features: 1.18 Years Warranty
2.Solar keymark.CE.ISO.product
3.OEM approved
4.Integrated non-pressure solar water heater
5.Efficiently
Model No.: HX-WH12CTAW
Features: 1.Solar keymark.CE.ISO and OEM accept
2.18 Years Warranty
3.Pressurized vacuum tube solar water heater
4.High efficiently
Model No.: HX-WH12CTAW
Features: 1.Solar keymark.CE.ISO and OEM accept
2.18 Years Warranty
3.Pressurized thermosyphon solar energy water heater
4.Efficiently
Model No.: HX-WH12CTAW
Features: 1.Solar keymark.CE.ISO products
2.18 Years Warranty
3.Compact non-pressurized solar water heater
4.High efficiently
5.OEM OK
Model No.: HX-WH23UWCW
Features: 1.18 Years Warranty
2.Solar keymark.CE.ISO.products
3.OEM approved
4.Split and pressurized solar water heater
5.Efficiently
Model No.: HX-WH23UWCW
Features: 1.18 Years Warranty
2.Solar keymark.CE.ISO.productS
3.OEM approved
4.Pressure solar water heater system
5.High efficiently
Model No.: HX-WH23UWCW
Features: 1.18 Years Warrant
2.Solar keymark.CE.ISO.product
3.OEM approved
4.Evacuated tube solar water heater
5.Temperature rise fast
Model No.: HX-WH23UWCW
Features: 1.18 Years Warranty
2.Solar keymark.CE.ISO.product
3.OEM approved
4.Evacuated glass tube solar water heater
5.Efficiently