16 points and 18 points. The 16-point aluminum-plastic solar pipe is suitable for bungalows and low-rise buildings, and the 18-point aluminum-plastic solar pipe is suitable for high-rise buildings and more complex pipeline configurations. Aluminum-plastic solar pipe is a pipe material used in solar hot water systems. It has the characteristics of corrosion resistance, aging resistance, high temperature resistance, UV resistance, etc., and can ensure the long-term stable operation of the solar water heater. systems.
Whether it is better to use aluminum-plastic pipes or PPR pipes for solar water heater water supply pipes
Both are acceptable. The advantage of PPR pipes is that they are hot. -melt connected. After connection, the pipes and pipe fittings are integrated into one. HeThere is a risk of water leakage, but the downside is that its normal operating temperature is around 70 degrees if the water temperature in your water heater is too high. high and reaches more than 90 degrees, it will cause premature aging of the PPR pipe. Therefore, PPR pipes are generally not directly connected to the sun. The section of pipe that is directly connected to the solar panel will usually be replaced every two years. years. The advantage of aluminum-plastic pipes is that it has better high temperature resistance than PPR pipes, but the disadvantages are more serious than PPR, because aluminum-plastic pipes are mainly connected with fittings of threaded pipes, mainly relying on rubber seals to keep out water. leak, but rubber seals are less likely to leak at high temperatures. The rate of aging is muchoop faster than that of PPR and the hidden danger of water leakage is serious.
There seems to be a pipe called "Youjia Steady State Pipe" on the market, which combines the advantages of PPR and aluminum-plastic pipes. The outer layer is PPR, the middle layer is aluminum, and the middle layer is aluminum. the inner layer is again PPR. Like PPR, hot melt connection is used, which solves the problem of connecting aluminum-plastic pipes. The inner PPR layer blocks direct contact between aluminum and water, eliminating aluminum pollution. Specifically, you can go to Baidu and search for "Youjia Steady State Pipe" to learn more.
Using aluminum-plastic pipes is definitely better than using PPR pipes, but the cost of using aluminum-plastic pipes is higher. , and the costs of connecting pipes are alsot higher, suitable for situations where the height of the solar hot water pipeline is large and the water pressure in the pipeline is large.
If the height of the hot water pipe is not very large, it is recommended to use standard PPR pipes. The insulation performance of this type of pipe is good, and there are no problems with strength and service life. High temperature resistance is no different from aluminum-plastic pipes.