The PPR pipe interface uses hot-melt technology, which allows the pipes to be fully fused together. Once the installation and pressure test are successfully completed, there should be no water leakage, making it highly reliable. However, this doesn’t mean that PPR water pipes are completely defect-free. They have slightly lower resistance to high temperatures and pressure compared to other materials. The long-term working temperature should not exceed 70°C, and each section has a limited length, meaning they cannot be bent easily. Additionally, the installation process requires many joints, which can increase the risk of leaks if not done properly. While the pipes themselves are relatively inexpensive, the fittings tend to be more costly. In this article, I will share some useful tips on how to purchase **PPR water pipe joints** and what to do in case of **leakage from PPR water pipe joints**, hoping to help those who are looking for guidance in this area.
**PPR Water Pipe Joint Purchase Tips**
In terms of overall performance, PPR pipes are considered a cost-effective option, which is why they are often the first choice for home improvement projects involving water pipe replacement.
1. When selecting PPR pipes, it's important to match them with the current tap water pressure. Common pressure ratings include 1.6MPa and 2.0MPa, with corresponding wall thicknesses of 2.3mm, 2.8mm, 3.5mm, and 4.4mm. It's not always true that higher pressure means thicker walls—what matters is that the pipe is sufficient for your needs. The pressure you see at the factory is usually higher than what actually reaches your home, so over-specifying is unnecessary. For most homes, a wall thickness of 2.3mm or 2.8mm at 1.6MPa is more than enough.
2. Many dealers offer discounts on PPR pipes, typically ranging from 6% to 6.5%. However, keep in mind that accessories like elbows, tees, and valves are rarely discounted or may only receive a smaller discount. For example, if you’re renovating one kitchen and one bathroom, plus a balcony, you might need around 15–20 meters of piping. At a market price of about $14 per meter, even with a 60% discount, the total cost could still be high when considering the fittings. Since pipes and fittings work together like ham and bread, many customers end up paying almost the same amount after buying discounted pipes but paying full price for the fittings. Always confirm in writing that both the pipes and the accessories are included in the discount before agreeing to installation.
During the installation process, make sure to check whether the pipes brought by the workers are new or leftover from previous jobs. Only proceed with the construction after confirming the quality of the materials.
When it comes to joints, less is more. Too many joints can reduce the inner diameter of the pipe, increasing water resistance and potentially decreasing the flow rate. More joints also increase the risk of poor connections. If possible, install the pipes in straight lines. To test for leaks, perform a pressure test at 0.6MPa for 24 hours. If the pressure remains stable, the system is likely leak-free.
PPR pipes are made from random copolymer polypropylene, which has been modified to enhance its mechanical properties. Compared to other types of polypropylene, PPR offers better tensile strength and impact resistance. It is an ideal material for hot water distribution systems. These pipes are non-toxic, hygienic, easy to install, and resistant to chemicals. Most importantly, their excellent thermal fusion properties allow the molecules to bond completely, eliminating the common issue of leaks at pipe joints. This makes PPR widely used in residential and commercial applications.
**What to Do If a PPR Water Pipe Joint Leaks**
Pipeline installation is a hidden project in home renovation. Once buried in the wall, any leaks can lead to serious consequences. The main causes of PP-R pipe leaks include improper fusion techniques and defects in the pipe itself. Choosing safe and environmentally friendly pipes is therefore crucial.
Germany KUOSHENG is the inventor and global leader in PP-R piping systems. Their patented raw materials are original and independently produced, offering excellent thermal stability and high purity. Their physical and chemical properties make them ideal for use in water and heating systems. More importantly, the material’s good welding and hot-melt characteristics ensure a permanent, integrated connection, guaranteeing the safety of hidden installations in home decoration.
**Editor's Summary**
This article has provided practical tips on purchasing and dealing with **PPR water pipe joints**. As mentioned earlier, the hot-melt technology used in PPR pipes ensures a strong, leak-proof connection once installed and tested. This makes them a reliable choice for modern plumbing systems.
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**Tags:** Water pipe, pipe purchase, pipe brand
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