## PIPE SIZE CHARTS FOR VARIOUS FLOW RATES …

2009-7-23 · PIPE SIZE CHARTS FOR VARIOUS FLOW RATES METRIC Flow rate and friction head loss for tubing and pipe sizes (based on 1.5 m/s velocity) Inside dia. (mm) 15 20 25 32 40 50 65 80 100 125 150 200 250 300 Flow Flow Friction head loss (meter of head per meter of pipe) 0.24 0.17 0.13 0.09 0.07 0.052 0.038 0.029 0.022