Comodo Trusted Site Seal
SSL Certificate

SBA Invent Logo

Fluid Mechanics: Minor Head Loss

Minor head loss is due to any pressure drop caused by an elbow, tee, valve, etc. To calculate the minor head loss equation 1 would be used.

Minor head loss equation (1)

hLminor = Minor Head Loss

kL = Minor Head Loss Coefficient

v = velocity

g = gravitational constant


The coefficient kL in equation 1 represents the loss coefficient. To determine the loss coefficient for various situations refer to the tables and images below.

Minor Head Loss Pipe Entrance

Minor Headloss pipe entrance
Minor Headloss Entrance loss graph
Minor Headloss sudden pipe contraction graph

Minor Head Loss Pipe Exit

Minor Headloss pipe exit
Minor Headloss sudden expansion graph

Minor Head Loss Conical Diffuser

Minor Headloss Conical Diffuser

Minor Head Loss 90 Degree Bend

Minor Headloss 90 degree pipe bend

Feedback and Recommendations





Recommended Text Books








We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

| © Copyright 2011 - 2018 | Prepared by S. B. Amirault, Founder of S.B.A. Invent | Terms & Conditions | Privacy |

Site Update

S.B.A. Invent has just implemented a new Forums. If you have questions, or feel like you can answer other people's questions, go check it out.

S.B.A. Invent Forums