Pipe Material Support Guide

Pipe material selection directly affects hydraulic calculations because each material has different wall thickness ratios, inner diameters, and friction characteristics. Plumbing Booster supports five material families with full specification data so that velocity and friction calculations use accurate inner diameters.

**PPR (Polypropylene Random)** - Series: PN10 SDR 11, PN20 SDR 7.4. C-factor: 150. OD: 20-110mm. **PEX (Cross-linked Polyethylene)** - Standard: ASTM F876-10. C-factor: 150. Sizes: 3/8" to 2". **Copper (Type L)** - Standard: ASTM B88. C-factor: 140. Sizes: 1/2" to 4". **CPVC (Chlorinated Polyvinyl Chloride)** - Standard: ASTM D2846/F441. C-factor: 150. Sizes: 1/2" to 4". **UPVC (Unplasticized Polyvinyl Chloride)** - Standard: ASTM D1785. C-factor: 150. Sizes: 1/2" to 12".

For PPR pipes, the inner diameter is calculated from the outer diameter and SDR rating: ID = OD x (1 - 2/SDR) Examples (PN10 SDR 11): - 25mm OD -> ID = 25 x 0.818 = 20.5 mm - 32mm OD -> ID = 32 x 0.818 = 26.2 mm - 40mm OD -> ID = 40 x 0.818 = 32.7 mm - 50mm OD -> ID = 50 x 0.818 = 40.9 mm - 63mm OD -> ID = 63 x 0.818 = 51.5 mm For Copper, PEX, CPVC, and UPVC, the software uses published dimension tables.

When using IPC table-based sizing, the IPC nominal inch size is mapped to the nearest PPR outer diameter: - 3/8" -> 20mm PPR - 1/2" -> 20mm PPR - 3/4" -> 25mm PPR - 1" -> 32mm PPR - 1-1/4" -> 40mm PPR - 1-1/2" -> 50mm PPR - 2" -> 63mm PPR

In Wet Areas Configuration, select the pipe material and series for cold and hot water independently. The software automatically looks up the correct inner diameter, applies the material-specific C-factor in friction calculations, calculates actual velocity, and suggests alternatives when velocity limits cannot be met.