What is the national standard for the thickness of pvc drainage pipes?

The national standards for the thickness of pvc drainage pipes are 32mm, 40mm, 50mm, 75mm, 90mm, 1 10mm, 125mm, 160mm, 180mm, 200mm and 250mm. Generally, the length of PVC-U pipe is 4m or 6m, and other lengths are determined by the supplier and the buyer through negotiation.

PVC drainage pipes have been widely used in all walks of life. The main material of PVC drainage pipe is PVC, which has strong heat resistance and corrosion resistance, which is also a reason why PVC is widely used.

PVC drainage pipe is a substitute product of traditional drainage pipe, which has better physical and chemical properties. Its inner wall is smooth, and its friction resistance is smaller than that of conventional drainage materials, so the installation slope of the horizontal pipe is smaller, which can improve the indoor clear height of the building.

The extensive use of PVC drainage pipes is conducive to saving steel and is of great significance to alleviating the shortage of steel in China. Compared with cast iron pipes and steel pipes, PVC-U drainage pipes have the disadvantages of low pressure resistance and weak impact resistance.