PPR pipes, also known as polypropylene pipes, are widely used in home water supply and heating systems. As these pipes are often installed in hidden areas, it's crucial to choose high-quality PPR pipes to avoid future problems. But how can you tell if a PPR pipe is of good quality? 1. Feel the Surface Run your hand along the surface of the pipe. A high-quality PPR pipe should have a smooth and even texture. While white, gray, and green are common colors, don't assume that white is always the best. Many manufacturers now produce white PPR pipes using advanced technology, so color alone isn’t a reliable indicator of quality. 2. Smell the Pipe Take a close sniff. High-quality PPR pipes should be odorless. If you detect a strong or strange smell, it might mean that the pipe contains impurities like polyethylene or recycled plastic. These additives can affect the pipe’s durability and safety. 3. Pinch the Pipe Try pinching the pipe with your fingers. A good PPR pipe should feel firm and not easily deform. If it feels too soft or elastic, it may be of lower quality or made from inferior materials. 4. Test the Flexibility Good PPR pipes should be resilient and tough, not brittle. Avoid pipes that break easily when bent or hit. Some unscrupulous manufacturers add excessive calcium carbonate to make the pipe harder, but this can reduce its flexibility and lead to cracks over time. 5. Burn the Pipe A simple burn test can reveal a lot. When burned, a genuine PPR pipe will produce no smoke or odor, and the molten material will be clear and transparent. Poor-quality pipes, on the other hand, may emit black smoke or a pungent smell due to the presence of recycled plastics or other impurities. Choosing the right PPR pipe is essential for long-term performance and safety. By using these simple tests, you can make an informed decision and ensure that your home’s plumbing system is built to last. (Reporter: Jiang Wei) Lithium ion hydraulic tools,Aluminum alloy manual hydraulic tools,Hydraulic expansion pipe bending ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.cn-kingsir.com