Pvc pipe and fitting size chart description
Pvc pipe and fitting size chart includes the national standards, sizes, Imperial and Metric, symbols, etc The meaning of De, DN, D, Φ The diameter of PVC pipe and fitting can be divided into outer diameter (De), inner diameter (D), and nominal diameter (DN). 1. DN refers to the nominal diameter of the pipe, which is the average of the outer diameter and the inner diameter. The value of DN=the value of De-0.5*tube wall thickness. Note: This is neither the outer diameter [...]