Astm d2665 pvc 配管 drain waste vent 配管

Reference data と engineering information about astm d2665 pvc 配管 drain waste vent 配管 for sanitary drainage applications.

ASTMD2665PVCpipe

Overview

Engineering reference data for ASTM D2665 PVC Pipe Drain Waste Vent Pipe in sanitary drainage.

$Q = \frac{1}{n} A R_h^{2/3} S^{1/2}$

Open channel flow.

$S = \frac{\Delta h}{L}$

Hydraulic gradient.