PPR Water Pipe Diameter DN Mean

When buying water pipes, I often see two English letters DN. Some friends do not know what the pipe diameter DN means. What should I pay attention to when buying pipes? Let’s take a look at IFAN and hope it helps you.

What does the diameter of the pipe mean?

DN is the abbreviation of diameter, which means the nominal diameter, generally in millimeters. If the DN is the same, it can be connected with other pipe accessories and is interchangeable. If the tube is marked DN50, it means its nominal diameter is 50mm. You can measure it yourself when you buy it, and the final measurement result shall prevail.