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:
	gpm cfs lps
Pipe Inside Diameter:
	in ft mm cm
Number of Outlets:
Pipe Length:
	ft in m
Pipe Material:
Plastic Epoxy coated steel Cement asbestos Galvanized steel New steel Aluminum with couplers 15 year old steel
Pressure Loss:
	psi kilopascal feet of water bar

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:
	gpm cfs lps
Maximum Allowable Pressure Loss:
	psi kilopascal feet of water bar
Number of Outlets:
Pipe Length:
	ft in m
Pipe Material:
Plastic Epoxy coated steel Cement asbestos Galvanized steel New steel Aluminum with couplers 15 year old steel
Minimum Pipe Diameter:
	in ft mm cm

 

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