Engineering Calculator

Professional piping engineering tools powered by industry-standard formulas and Takween Plast technical data.

Temp-Pressure RelationFriction Loss PipesFriction Loss FittingsEarth LoadWheel LoadAdhesiveExpansion ContractionVelocityWater HammerSupport SpacingBuoyancySDR Rating PVCSDR Rating HDPE

SDR Rating PVC

SDR & Pressure Rating (PVC)

Calculate the Standard Dimension Ratio (SDR) and theoretical Pressure Nominal (PN) rating for uPVC.

mm
mm
Standard uPVC Classes:PN6PN10PN16PN20PN25

SDR represents the ratio of pipe diameter to wall thickness. A lower SDR means a thicker wall and higher pressure capability.