Water Flow - Max. Delivery Velocity vs. Pipe Size

Recommended maximum flow velocities in water systems on the delivery side of the pump. Use this tool to find the maximum recommended velocity for a given pipe size (NPS).

NPS (inches)	Pipe Size (mm)	Max. Velocity (m/s)	Max. Velocity (ft/s)
1	25	1	3.5
2	50	1.1	3.6
3	75	1.15	3.8
4	100	1.25	4
6	150	1.5	4.7
8	200	1.75	5.5
10	250	2	6.5
12	300	2.65	8.5

Calculator

Inputs

Pipe Size (NPS)

Results

Max. Delivery Velocity-- m/s

Max. Delivery Velocity-- ft/s

Pipe Size-- mm

Water Flow - Max. Delivery Velocity vs. Pipe Size | MEPKit Engineering Tools | MEPKit