EngiRef / Fluids Engineering Formula

Minor Head Loss

Minor Head Loss: Head loss through fittings and valves. A Pipe Flow formula in fluids engineering. Variables hₘ, K, v and g, each with SI and imperial units.

Pipe Flow

Specification

Name
Minor Head Loss
Discipline
fluids
Category
Pipe Flow
LaTeX
h_m = K \frac{v^2}{2g}
Description
Head loss through fittings and valves
Conditions
K depends on fitting type
Can solve for
hₘ, K, v
Tags
minor, loss, fitting, valve, elbow

Variables

Variables for Minor Head Loss
SymbolNameUnitSi UnitImperial Unit
hₘMinor Head Lossmmft
KLoss Coefficient
vVelocitym/sm/sft/s
gGravitym/s²m/s²