When choosing a pipe, three markings determine everything. DN states the nominal diameter, PN the nominal operating pressure in bar, and SDR the ratio of outside diameter to wall thickness. The lower the SDR, the thicker the wall and the higher the pressure resistance.
In practice, the choice is based on the maximum network pressure, including water hammer, and the flow to be conveyed. Oversizing increases cost, undersizing risks failures.
The technical team of REPPAS S.A. helps you turn your project needs into correct specifications.