PVC Pressure Pipe PN & SDR: Which Class to Specify

Knowledge / By

A purchase order that says “PVC pressure pipe, 110 mm, PN 16” is complete. One that says “4 inch, high pressure” is not, and the gap between them is where most disputed PVC deliveries begin. PN, SDR, DR, Pressure Class and Pressure Rating are five labels for one physical property — wall thickness relative to […]

PVC Pressure Pipe PN & SDR: Which Class to Specify Read More »