Irrigation in the Pacific Northwest

Friction Loss

Calculate friction loss from laterals or manifolds with outlets, and pipes with outlets.


Learn more about the units used on this page.

Friction Loss from Laterals or Manifolds with Outlets

This first form calculates friction loss in a pipe with equally spaced outlets, such as a sprinkler lateral or a manifold.


Flow Rate In The Pipe:
Pipe Inside Diameter:
Number of Outlets:
Pipe Length:
Pipe Material:
Pressure Loss:

Minimum Pipe Diameter Size

This second form calculates the minimum pipe size for a pipe with equally spaced outlets such as a sprinkler lateral or manifold given a maximum allowable pressure loss.

Flow Rate In The Pipe:
Maximum Allowable Pressure Loss:
Number of Outlets:
Pipe Length:
Pipe Material:
Minimum Pipe Diameter:

 

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