Cavitation Index Calculator – Recognition Process Engineering Services

Cavitation Index Calculator

Calculate the sigma value to determine cavitation risk

Cavitation Guidelines: If Sigma value is less than 0.8 – noisy cavitation, or if it's less than 0.5 – damaging cavitation.

Inlet Pressure (P1) (bara):

Outlet Pressure (P2) (bara):

Vapor Pressure (Pv) (bara):

Sigma Value:

σ = -

Cavitation Status:

Enter values and calculate

Formula:

σ = (P2 - Pv) / (P1 - P2)

Where:
P1 = Inlet Pressure (bara)
P2 = Outlet Pressure (bara)
Pv = Vapor Pressure (bara)