300L Stainless Steel Non Pressurized Vacuum Tube Thermal Solar Water Heater With Special Absorptive Coating
Working Principle:
This type use all-glasses evacuated tubes as the solar collector for absorbing sun energy and transferring
it into heat energy.
As the different densities of hot water and cold water, the hot water flows automatically upwards while the cold water flows down.
The water flowing cycle is created in the tube. And the water in the storage tank is heated from this natural circulation.
The hot water pressure of this non-pressure system is from the gravity, so it should be installed on the roof or at least 3-4 meters higher than hot water tap.
Or you can install a booster pump to get stronger outlet hot water.
Specification:
1. Inner tank material: SUS304-2B food grade stainless steel 0.31mm
2. Outer tank material: stainless steel sheet 201, thickness 0.31mm,
3. Bracket:1.2mm SS 202 stainless steel sheet
4. Vacuum tube: 58mm diameter, 1800mm length,coated by AL-N-AL
5. Insulation layer: 50-65mm polyurethane foam
6. Hail resistance:25mm 7.Heat preservation:72hours
Optional Accessories:
1. Booster Pump (adding the hot water out pressure)
2. Temperature Monitor(showing hot water temperature inside the main tank)
3. Electrical Heater (as back-up for cloudy or rainy day)
| MODEL: | Solar Vacuum Tube | Absorber Area | Aperture Area | Capacity | Loading Qty/sets |
| Item No. | Qty /(pcs) | Size/(mm) | (m2) | (m2) | (L) | 20GP/40HQ |
| 58/1800/10 | 10 | Φ58 X 1800 | 0.80 | 0.930 | 100 | 80/191 |
| 58/1800/12 | 12 | Φ58 X 1800 | 0.96 | 1.116 | 120 | 67/159 |
| 58/1800/15 | 15 | Φ58 X 1800 | 1.20 | 1.390 | 150 | 54/127 |
| 58/1800/16 | 16 | Φ58 X 1800 | 1.28 | 1.488 | 160 | 50/119 |
| 58/1800/18 | 18 | Φ58 X 1800 | 1.44 | 1.674 | 180 | 45/106 |
| 58/1800/20 | 20 | Φ58 X 1800 | 1.60 | 1.860 | 200 | 39/98 |
| 58/1800/22 | 22 | Φ58 X 1800 | 1.76 | 2.046 | 220 | 37/87 |
| 58/1800/24 | 24 | Φ58 X 1800 | 1.92 | 2.232 | 240 | 33/80 |
| 58/1800/25 | 25 | Φ58 X 1800 | 2.00 | 2.325 | 250 | 32/76 |
| 58/1800/30 | 30 | Φ58 X 1800 | 2.40 | 2.790 | 300 | 27/64 |
| 58/1800/36 | 36 | Φ58 X 1800 | 2.88 | 3.348 | 360 | 22/53 |
| 58/1800/40 | 40 | Φ58 X 1800 | 3.20 | 3.720 | 400 | 20/48 |
| 58/1800/42 | 42 | Φ58 X 1800 | 3.36 | 3.906 | 420 | 19/46 |
| 58/1800/48 | 48 | Φ58 X 1800 | 3.84 | 4.464 | 480 | 17/40 |
Additional Terms:
| Payment Terms | L/C, T/T |
| Minimum Order | 2 sets |
| Lead Time / Delivery Time | 15 Day(s) |
| Sample Available | YES |
| Delivery Details | after receipt of payment |
| Port of Lading | Ningbo / Shanghai |
| Shipping | by sea |
| Packing | export carton |
| Target Market(s) | Africa(except Middle East), Central & Southern Asia, Latin America, Southeast Asia |
