Should I use ppR or aluminum plastic for solar energy?

Introduction ppR or aluminum-plastic can be used for solar energy. The advantage of PPR pipe is that it is hot connected after connection, the pipe and pipe fittings are integrated into one, and there is no hidden risk of water leakage. However, the downside is that i

Should I use ppR or aluminum plastic for solar energy?

Both are OK. The advantage of PPR pipe is that it is hot connected. After connection, the pipe and pipe fittings become one, and there will be no hidden risks of water leakage. The downside is that its normal operating temperature is around 70 degrees. If the water temperature in your water heater is too high, when the temperature reaches 90 degrees or higher, the PPR pipe will age prematurely. Therefore, PPR pipes are generally not directly connected. the sun. Even if they are connected, the section of pipe directly connected to the solar will usually be replaced in one to two 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, relying mainly on dRubber seals to prevent water. leak, but rubber seals are less likely to leak at high temperatures. The aging speed is much 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.

How to weld solar pipes and PPR

The interfacePPR solar water pipes are hot glued. Yes, AB glue cannot be used to glue them, because it will not solve the leaking problem.

The PPR pipe connection is heated with a hot melt device and then bonded (as shown below):

Leakage points caused by poor hot melt bonding cannot be blocked with AB glue. - —Because water has a certain pressure. It can only be re-glued by hot melt. The reasons for poor bonding in hot melt bonding include the following situations:

1. Working with water: make sure the welding position is dry

2 . On the matrix, it is already dry; very dirty and needs to be cleaned;

3. The release layer on the die head has fallen off and a new die head needs to be replaced;

4. The temperature of the welder must be verified. Around 260 degrees: make sure you measure it directment with a thermometer. Whether it's higher or lower, you won't get the best effect;

same material? If they are not both PP-R, are they welded? Less than together

6. Observe whether the dimensions of the pipe and pipe fittings match. The standard is: the pipe cannot be. inserted into seamless pipe fittings. If the pipe fitting size is too large or the pipe size is too small, it may not be welded well.

I have been selling solar water heaters for 8 years. I think what you are talking about is connecting the solar sewer pipe (solar specific PEX pipe) and the interior PPR pipe with hot flux. I can tell you, it’s not feasible! The only way is to use copper fittings to connect the PEX pipes, and then use PPR pipe fittings such as inner teeth and outer teeth to connect the partslower, then melt them hot!

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