Pressure Drop (psi/mile) for Water

Flow rate BPHNominal Pipe size (inches)
681012141618202224
50018.554.591.470.620.390.20.110.070.040.03
100068.9416.735.292.21.370.70.390.240.150.1
1500150.3236.0711.34.672.891.470.830.490.310.2
2000262.5462.5319.4584.942.51.40.840.530.34
2500405.5796.0929.7512.197.523.792.121.260.790.52
3000579.37136.7242.1617.2210.65.332.981.771.110.72
3500*184.4256.6923.114.27.133.972.361.480.96
4000*239.1973.3429.8218.39.185.113.031.891.23
4500*301.0192.137.3722.9211.476.383.782.361.54
5000*369.9112.9745.7728.0414.027.784.612.881.87
5500*445.85135.955533.6716.819.325.523.442.24
6000**161.0365.0639.819.85116.54.052.63
6500**188.2375.9746.4423.1312.817.574.713.06
7000**217.5387.753.5826.6714.758.715.423.52
7500**248.94100.2761.2230.4516.839.936.174
8000**282.45113.6869.3734.4819.0411.236.984.52
8500**318.07127.9278.0338.7521.3912.67.835.07
9000**355.8142.9987.1943.2723.8714.068.725.65
9500***158.996.8548.0326.4915.599.676.26
10000***175.64107.0153.0429.2317.210.666.9


Notes:
1. Assumed wall thicknesses are 0.250" for 6"-16", 0.281" for 18", 0.312" for 20", 0.344" for 22" and 0.375" for 24".
2. For flow rates or sizes outside these parameters, please contact Chuck Petersen.
3. Questions regarding surge pressures at the higher flow rates should also be addressed to Chuck Petersen.

*See attached table of velocities (ft./sec).
See attached table of fluid properties (specific gravity and viscosity).