PPR tube integrates human aesthetics with traditional Chinese aesthetics. It adopts international top-grade raw materials for one-time production and unique four-way ribs for safe care.
The PPR pipe is officially called the random copolymer polypropylene pipe, which is the most widely used water supply pipe in the home improvement project. The difference between the cold water pipe and the hot water pipe is that there is a blue marking line on the cold water pipe and a red wire in the hot water pipe.
First, PPR pipe production standards
National standard: General GB/T18742.1-2002; pipe GB/T18742.2-2002; pipe fittings GB/T18742.3-2002
European Standard: General ISO/DIS 15874.1:1999 Pipe Fittings ISO/DIS 15874.2:1999
Second, PPR pipe production process
Ingredients → automatic feeding → heating extrusion → vacuum cooling → secondary water cooling → product coding → traction pipe → fixed length cutting → product inspection → finishing packaging → storage and storage
Third, the characteristics of PPR tube
1. Non-toxic, no rust, never scaling, in line with GB/T 17219-1998 standard for drinking water;
2. Heat resistance (water temperature of pipeline can reach 95 °C), pressure resistance (pressure test strength can reach 5MPa or more);
3. Using hot-melt joint technology without any additional materials, the pipe and pipe fittings are homogenized and melted into one body, without detachable embedded joints, eliminating the hidden danger of water leakage;
4. The product color is soft, the appearance is beautiful, and it can be mounted;
5. Light weight (only one-eighth of the metal tube), easy to install, handle and connect, saving labor costs;
6. Corrosion-resistant, it can prevent the corrosion of ions in water and chemicals on the inside and outside of the pipe at the construction site;
7. The inner wall is smooth, the system pressure loss is small, and the water flow speed is fast;
8. Insulation and energy saving (thermal conductivity is only one-twoth of that of metal pipes), generally do not need to do thermal insulation treatment;
9. The tensile modulus is small, and the expansion force due to temperature change is also small. It is suitable for direct buried and dark application of embedded wall and floor surface;
10. Long service life, the service life is 50 years when the pressure is 1.25Mpa and 60°C.
Fourth, the welding steps of the PPR tube
1. Make a mark at the pipe insertion attempt. (equal to the insertion depth of the joint).
2. The surface of pipes and joints should be smooth, clean and oil-free.
3. Heat the entire embedded depth, including pipes and joints, in a welding tool.
4. The joint position can be adjusted within a few seconds after the pipe joint is welded.
5. When the heating time is completed, the pipe is smoothly and evenly pushed into the joint to form a firm and perfect combination.
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