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Technical Parameters of Low pressure Solar Collector
| Vacuum tube | Size (mm) | Φ58×1800/Φ47×1500 | ||||
| Tube (pcs) | 10/15/20/30/40/50/60 | |||||
| Glass | Double layer borosilicate 3.3 glass with high vacuum | |||||
| Coating | Three-target selective coating Cu/SS-ALN | |||||
| Distance from tube to tube (mm) | 75 | |||||
| Manifold | Dimension | 180*160mm | ||||
| Manifold Inner tank | Food-grade stainless steel SUS304-2B/SS316 | |||||
| Manifold | Stainless steel/Galvanized steel | |||||
| Out Tank | ||||||
| Insulation | High-density polyurethane foaming40mm thickness | |||||
| Manifold connections | 3/4" or 1/2" optional | |||||
| Bracket | Stainless steel/Galvanized steel/Aluminum Alloy. | |||||
| Nut and bolts are made up of stainless steel. | ||||||
| Angle | 0°~ 90°,adaptable to flat or slope roof | |||||
| Hail resistance | Φ25mm diameter | |||||
| Model Number | Solar Vacuum Tube | Aperture Area/ m2 | Installation | |||
| Size/mm | Qty/pcs | |||||
| NPC-58-15 | Φ58*1800 | 15 | 1.421 | horizontal | ||
| NPC-58-20 | 20 | 1.894 | horizontal | |||
| NPC-58-25 | 25 | 2.369 | horizontal | |||
| NPC-58-30 | 30 | 2.842 | horizontal | |||
| NPC-58-40 | 40 | 3.788 | vertical | |||
| NPC-58-50 | 50 | 4.738 | vertical | |||
| NPC-58-60 | 60 | 5.684 | vertical | |||
Working Principle of Solar Collector
Combined various collectors with water storage tank as a complete projects.
Water in solar vacuum tube for heat transferring, by circulation pump and relative system to take the heat to water tank.
Non-pressure Vacuum Tube Solar Thermal Collector consists of all-glass vacuum tube,
non-pressurized manifold and support bracket, working principle is the same as integrated non-pressurized system, taking advantage of the natural circulation due to larger proportion of hot water to cold water.
Series or/and parallel connection arrays of solar collector is usually adopted for large-scale hot water heating projects.