PVC drainage pipe has small friction coefficient, smooth water flow, is not easy to block, less maintenance work, high oxygen index and self extinguishing.PVC drainage pipe can be connected by bonding method, which is simple in construction, convenient in opAPAStion and installation.The deformation affected by tempAPASture is small, 50% – 150% lower than that of similar pipes. Its thermal conductivity and elasticity are small, and its frost resistance is better than some metal pipes.The compressive strength and tensile strength are good, but the flexibility is not as good as other plastic pipes.
Low fluid friction resistance: the PVC-U pipe wall is smooth and clean, and the fluid friction resistance is small. The surface roughness index is only 0.009, and the water working capacity is 20% higher than that of cast iron pipes with the same diameter, and 40% higher than that of concrete pipes.
Excellent corrosion resistance and chemical resistance: PVC-U pipes have excellent acid resistance, alkali resistance and corrosion resistance, and will not be disturbed by the pH value of water and soil layers. Therefore, all anti-corrosion measures are not required when paving.
Good water tightness: When PVC-U pipe is installed, it has excellent water tightness no matter whether it is connected by adhesive or rubber ring.

PVC-U pipe is made of sanitary grade polyvinyl chloride (PVC) resin as the main raw material, and added with appropriate amount of stabilizer, lubricant, filler, color enhancer, which is extruded by plastic extruder and molded by injection molding machine. The production of pipes and pipe fittings is completed through cooling, curing, shaping, inspection, packaging and other processes.It has excellent physical and chemical properties, chemical corrosion resistance, high impact strength, small fluid resistance, 30% increase in flow compared with cast iron pipes of the same diameter, aging resistance, long service life, and service life of not less than 50 years. It is an ideal material for building water supply and drainage. Light and durable, easy to install, effectively speeding up the project progress. The construction cost can be saved. Compared with cast iron pipes of the same specification, the construction cost can be greatly reduced.