180L Stainless Steel High Pressure Copper Coil Pre Heated Solar Water Heater Heat Exchanger
Good water quality
It use tap water directly, live water but not sedimentary water.
Pressure endurance
The thick of coil is 0.8mm, which can withstand 6-12 bar.
Working automatically
A feed tank on the top, it will supply water automatically. What you need is just to open tap and have a wash.
No scale, high efficiency
Water in the tank wouldn't be used just to heat the coil, the water in the tank will keep hot and no scale. The vacuum tubes will be kept clean, and system has a higher efficiency than normal system.
Simple structure
Total 3 valves in whole system only, very simple and safety, maintenance free.
Anti-freezing
Because of all hot water in main tank, the feed tank won't be frozen. It can be working well in -10deg.C. - good performance in rainy & cloudy days
When tap water comes in and out, it will be just 3deg.C less than water in tank. Viz. if 90deg.C in tank, the outlet water will be at 87deg.C after exchanging.
If tank water is 90deg.C, and you catch rainy days, no problem, if you use 50L 40deg.C water per day, you can keep getting such hot water for 15 days!!
The electric heater is only backup, we don't use it anytime practically, except in winter.
More capacity
Because the water in tank doesn't be used, in fact the circulation is not only water in the tank but also water in the tube. So for example 300L, actually it has 400L in whole system.
Item Technical Data
| Specification & model | 150L | 180L | 200L | 240L | 250L | 300L |
| Full system parameter | |
| Tube QTY(pcs) | 15 | 18 | 20 | 24 | 25 | 30 |
| Tube spacing㎜) | 75 | 75 | 75 | 75 | 75 | 75 |
| Water tank | | | | |
| Net Volume of Storage Tank(L) | 120 | 140 | 155 | 185 | 195 | 230 |
| Gross Capacity(L) | 155 | 185 | 205 | 245 | 255 | 305 |
| Diameter of inner/outer Tank(㎜) | φ360/φ470 | φ360/φ470 | φ360/φ470 | φ360/φ470 | φ360/φ470 | φ360/φ470 |
| length of outer tank L1(㎜) | 1310 | 1535 | 1685 | 1985 | 2060 | 2435 |
| length of inner tank L(㎜) | 1170 | 1395 | 1545 | 1845 | 1920 | 2295 |
| material and thickness of inner tank(㎜) | SUS304 /t0.41 | SUS304 /t0.41 | SUS304 /t0.41 | SUS304 /t0.41 | SUS304 /t0.41 | SUS304 /t0.41 |
| material of outer tank | color steel plate t0.45 | color steel plate t0.45 | color steel plate t0.45 | color steel plate t0.45 | color steel plate t0.45 | color steel plate t0.45 |
| material of insulation | polyurethane | polyurethane | polyurethane | polyurethane | polyurethane | polyurethane |
| Size of electrical heater hole | 11/4″ | 11/4″ | 11/4″ | 11/4″ | 11/4″ | 11/4″ |
| Cold water inlet hole | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| Hot water outlet hole | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| Assistant tank hole | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| Air vent hole | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| Drain vent hole | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| Sensor hole | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| | | | | | | | |
Features
1. It can withstand pressure of tap water when it works, and copper coil in tank bear pressure.
2. Use in any time: it adopts advanced design idea and integrates with high efficiency preheated patent technique.
3. High quality SUS304-2B stainless steel for inner water tank, processed by argon arc welding technique, under
strict quality control system, tank will never rust and leak.
4. Relevant accessories are optional instead of compulsory, client can choose some or none according to actual need.
5. 6. It can produce hot water with constant temperature.
7. It’s indirect solar system, so water quality is superior, much cleaner than direct solar system.
8. Time of uploading water is cut, 24 hours water supply on condition that pipeline is working.
9. Life duration: 15 years, warranty: 5 years
10. OEM/ODM offered
