PVC-U reinforced pipeBailian Plastic Industry

PVC-U reinforced pipes are extruded from rigid polyvinyl chloride. It is a new type of buried drainage pipe developed based on PVC-U double wall corrugated pipe, HDPE double wall corrugated pipe, and HDPE double wall hollow ribbed winding pipe. As a new generation of drainage pipes, PVC-U reinforced pipes have been widely used in water and sewage projects in developed countries due to their scientific and reasonable I-beam structure, more reliable connection methods, and better resistance to external damage. They have gradually become the best alternative to concrete pipes.
The "Experimental Study on the Application of Ultra Rib PVC Pipe in Shanghai Municipal Sewage Engineering" organized by the Shanghai Municipal Engineering Management Bureau in 1996 and the "Application Study of PVC Super Reinforced Pipe Engineering" organized by the Shanghai Construction Committee in 1998 indicate that this PVC pipe is a high-quality new type of pipe that is fully suitable for the buried pipe process requirements under soft soil foundation conditions. This pipe can adapt well to uneven settlement of soft soil foundation, has good interface performance, low roughness, light weight, easy installation, and is conducive to rapid and civilized construction. And it has been highly praised by users for its reliable connection, easy installation, and low comprehensive cost in practical application in buried sewage projects.
PVC-UCharacteristics of Reinforced Pipe Products
1. Having sufficient strength and high ring stiffness: easy to construct, with low requirements for backfill soil;
2. Low comprehensive cost: Compared with PE double wall corrugated pipes and wrapped pipes, this pipe material is less likely to deform due to compression in municipal road engineering and has a low comprehensive cost;
3. Lightweight: Only about 1/5 the weight of a metal pipe, easy to transport and install, with a short construction period;
4. Wear resistance: It has been experimentally proven that its anti sliding wear performance is better than that of concrete pipes and steel pipes, ensuring the long-term service performance of the pipes;
5. Excellent chemical corrosion resistance: It can resist the corrosion of most common chemicals and oxides in sewage, as well as alkaline soils containing sulfates, carbonates, etc;
6. Has good electrical insulation performance: buried underground can effectively resist electrochemical corrosion;
7. Strong flow capacity and low maintenance cost: The reinforced pipe has a smooth inner wall with a Manning friction coefficient of 0.01. Compared with the same diameter concrete pipe (Manning friction coefficient of 0.013), it can increase the flow rate by about 30%. At the same time, the smooth inner wall of the pipe is not easy to cause blockage or scaling, thereby reducing maintenance frequency;
8. The most advanced connection method: more convenient and reliable rubber ring socket connection, allowing for larger axial bending. After testing, there was no water leakage when the interface was deflected by 2 ° or flattened by 5%. Therefore, when the foundation experiences uneven settlement, the pipeline undergoes significant deformation or lateral displacement, but there will be no pipe fracture or interface leakage, making it highly adaptable to soft soil foundations. The sealing ring is firmly placed between the two ribs and will not twist or deform during installation. Adopting hot forming expansion, the outer diameter of the socket is relatively small, and the change in ring stiffness is small, ensuring the reliability of the use process;
9. Good anti-aging performance: The elastic modulus of PVC-U material changes little with time, ensuring the long-term performance of the pipe;
10. Its unique I-beam structure: the strong joint action of reinforcing bars and backfill soil can effectively resist the axial and radial changes of the pipe caused by temperature changes, and can play a certain role in protecting the pipe during transportation and installation;
11. The elongation resistance of PVC-U material: it can effectively resist the penetration and infiltration of plant and grass roots;
12. Long service life: The designed service life is over 50 years;
13. Good environmental friendliness: PVC is an environmentally friendly product that can be recycled and reused, and will not cause any pollution to the environment.
PVC-UScope of application for reinforced pipes
1. Municipal rainwater and sewage discharge projects;
2. Chemical and mining fluid transportation, industrial wastewater discharge;
3. Sheath for high-voltage cables, postal and telecommunications cables;
4. Pre embedded pipelines for highways and railways;
5. Irrigation and drainage of farmland water conservancy output;
6. Drainage and sewage discharge in residential areas;
7. Sewage treatment plants, garbage dumps, mining pipes, etc.