1.SRCC, Solar Keymark EN-12975, CE, SGS.
2. Anti-freezing and high heat efficiency.
3. 15 years warranty for vacuum tube.
Port: Shanghai
Minimum Order Quantity: 2 Unit/Units
Supply Ability: 11000 Unit/Units per Month
Payment Terms: L/C,T/T
Contact SupplierPackaging Detail: standard export cartons.
Delivery Detail: within 15 days upon receipt of deposit
Solar collector specification:
1. Manifold (interior): 0.8mm thickness Red copper
2. Manifold (exterior): 2. Mm thickness Aluminum alloy
3. Glass tube dimensions: 58mm x 1.800mm / 47mm x 1.500mm
4. Tube no: 10/12/15/18/20/22/24/25/28/30tube
5. Insulation layer: 35mm thickness glass firber /polyurethane layer
6. Heat preservation: 72 hrs
7. Hail resistance: 25mm
8. Max pressure: 6 bar
9. Coating of vacuum tube: Ss-c/cu
10. Frame: 2.0mm thickness Aluminum Alloy
The tubes consist of a single glass tube. Inside the tube is a flat or curved aluminum plate which is attached to a copper heat pipe or water flow pipe. The aluminum plate is generally coated with Tinos, or similar selective coating. These types of tubes are very efficient but can have problems relating to loss of vacuum. This is primarily due to the fact that their seal is glass to metal. The heat expansion rates of these two materials. Glass-glass tubes although not quite as efficient glass-metal tubes are generally more reliable and much cheaper