● What is PPR pipe?
The English full name of PPR pipe is Polypropylene Random Copolymer (three types of polypropylene), which is a plastic pipe made of random copolymer polypropylene as a raw material. The production process seamlessly connects pipes and fittings through high-temperature hot melt technology to form a system with strong sealing. PPR pipe originally originated in Europe, after entering the Chinese market in the 1990s, it quickly replaced traditional galvanized steel pipe, PVC pipe, and other materials with its durability and safety.

Specifications and parameters of Polypropylene Pipes for cold and hot water

Hydrostatic Strength of Polypropylene Pipe for cold and hot water

Physical and chemical properties of polypropylene pipes for cold and hot water

● Core Advantages of PPR Pipes

1. Safe, non-toxic, healthy, and environmentally friendly
   The raw material of PPR pipes is food-grade polypropylene. No harmful substances such as heavy metals are added during the production process, fully meeting the national standards for drinking water transportation. Even after long-term use, it will not pollute the water quality due to rust or scale formation, and is especially suitable for household cold and hot water pipes and direct drinking water systems.

2. High temperature and high pressure resistant, long service life
   PPR pipes can withstand a high temperature of 95℃ and have excellent pressure resistance. Its molecular structure is stable and it is not easily corroded by chemical substances. Its normal service life can reach over 50 years, far exceeding that of metal pipes.

3. Hot-melt connection eliminates the risk of water leakage
   Traditional metal pipes are connected by threads or clips, which are prone to leakage due to thermal expansion and contraction. PPR pipes achieve molecular-level fusion of pipes and fittings through hot-melt technology, with a seamless interface that completely resolves the leakage issue and significantly reduces maintenance costs in the later stage.

4. Lightweight and easy to install, with high cost performance
   The weight of PPR pipes is only 1/9 that of steel pipes, and they are convenient to handle and install. Its hot-melt welding process is simple. Ordinary workers can operate it after training, and the construction efficiency is high. Although the price per meter is slightly higher than that of PVC pipes, when considering the overall service life and maintenance costs, the economic efficiency of PPR pipes is remarkable.

● Application scenarios of PPR pipes

1. Home decoration field: floor heating pipes, kitchen and bathroom water supply and drainage, water purification systems
2. Engineering field: Centralized water supply systems for hotels, hospitals, and schools

PPR PIPE and fittings Packaging

PPR Pipe Q&A

• Q1: What are the specifications and dimensions of PPR pipes? How to choose?
  A: Common specifications include Φ20mm (4-inch pipe), Φ25mm (6-inch pipe), etc. For household water supply, Φ25mm (main pipe) and Φ20mm (branch pipe) are recommended. For heating pipes, Φ32mm or above is suggested. For details, please refer to the [Product Specification Sheet].
• Q2: Can PPR pipes withstand high temperatures? What is the maximum tolerable temperature?
  A: High-quality PPR pipes can withstand a long-term high temperature of 70℃ and a short-term high temperature of up to 95℃ (such as the connecting pipes of water heaters), meeting production standards and fully satisfying the cold and hot water demands of households.
• Q3: Does PPR pipe have hygiene certification?
  A: This product has passed the national drinking water hygiene and safety certification. It contains no heavy metals and has a smooth inner wall that does not scale, meeting the standards for direct drinking water delivery.
• Q4: How to connect PPR pipes? Are any special tools needed?
  A: Hot-melt connection is adopted and a dedicated hot-melt device is required. Operation steps: Cut the pipe → Mark the welding depth → Heat → Plug and cool.
• Q5: Is a pressure test required after installation? What is the standard?
  A: The pressure test must be conducted! It is recommended that the pressure stabilization test pressure be 1.5 times the working pressure (usually 0.8-1.2MPa). If there is no leakage after holding the pressure for 30 minutes, it is qualified.
• Q6: What should be noted when installing concealed PPR pipes?
  A: ① The depth of the grooves on the wall should exceed the pipe diameter by 1.5cm; ② Avoid 90° right-angle bends and use large elbows to reduce water resistance. ③ Reserve inspection openings. It is recommended to purchase PPR pipe fittings with copper cores, as they offer better durability.
• Q7: What are the differences between PPR pipes, PVC pipes, and galvanized pipes?
  A:
  | Comparison Items | PPR pipe | PVC pipe | Galvanized pipe |
  | Applicability | Cold and Hot water | Mainly for drainage | Prone to rust |
  Lifespan | 50 years | 10-15 years | 5-8 years |
  | Environmental friendliness | Non-toxic | Contains plasticizers | Risk of heavy metal leaching |
• Q8: Which is better, grey PPR pipes or white PPR pipes?
  A: The grey pipes are added with UV-resistant materials and are suitable for exposed balconies. White pipes offer high cost performance and are suitable for concealed installation. There is no difference in performance between the two, and both have passed the national standard test.
• Q9: Can samples be provided for free?
  A: We support sample ordering. Welcome to place your order and make your selection.
• Q10: Is there any discount on the price?
  A: We focus on wholesale business. The larger the order quantity, the more favorable the unit price. We will provide you with the most competitive quotation based on your purchase quantity.
• Q11: The freight cost is a bit high. Could it be reduced a little?
  A: The freight we have arranged for you has adopted the most economical and reliable transportation plan. The price is determined by the logistics company. We are unable to offer additional reductions. We appreciate your understanding. If you have a designated Chinese freight forwarder or logistics channel, we also support the use of the transportation service you have arranged.