MTH Pumps - Pipe Velocity & Minimum Pipe Diameter

Bigger pipe is more expensive, but keeping the water velocity low is important to limit pressure losses due to friction, water hammer, and pipe movement due to water momentum changes inside the pipe. Use the second form to calculate the inside diameter of a pipe at a water velocity of 5 ft/sec. 5 ft/sec is a somewhat arbitrary velocity threshold that some designers use because beyond that the friction losses, danger of water hammer, and pipe movement due to water momentum changes are deemed to be too high. Used to calculate the velocity in a pipe. (Based on water properties)
Velocity
Flow Rate:
Pipe Inside Diameter:
Water Velocity:	ft/sec (fps)
Minimum Pipe Diameter to Limit Velocity to 5 ft/sec
Flow Rate:
Minimum Pipe Inside Diameter (pick the next largest pipe size):