We often encounter a misconception that a PU foam insulated pipe that cannot be crushed is a good insulated pipe. This method of judgment is wrong. Whether a PU foam insulated pipe can be crushed is a misunderstanding in judging insulated pipes and cannot test whether the insulated pipe is good. So how can PU foam insulated pipes be prevented from cracking?PU Insulated Steel Pipe Manufacturer Let us take a look:
Because the performance of PPR material changes with ambient temperature. At low temperatures, especially in winter, the flexibility of the pipe decreases, rigidity increases, and brittleness appears. Pipe failure may occur under external impact or excessive accidental load, causing inconvenience to construction.
For this reason, relevant national regulations have clear requirements. During winter construction, attention should be paid to the low-temperature brittleness of pipes, and corresponding construction plans should be formulated. Conversely, some counterfeit PU foam insulated pipes and other raw materials are easily damaged. In fact, PU foam insulated pipes that can theoretically convey hot and cold water for 50 years (especially at low temperatures) may crack. This is the low-temperature brittleness of PP-R.
If a PU foam insulated pipe cannot be broken, it can be concluded that it is not genuine PPR material. The advantages of PU foam insulated pipes are mainly reflected in their high creep resistance. Pure PPR pipes have low-temperature brittleness, especially in environments below 5°C, where good-quality pipes will crack. PP-B is generally not a PU foam insulated pipe, but a mixture of cold-water or other materials.
The above are methods to prevent bursting of PU foam insulated pipe. We hope they are helpful. For more information, please follow us. PU Insulated Steel Pipe Manufacturer
