Pipe Flow Solver

Back to Solvers

NPSH & Cavitation

Available vs required NPSH on the pump suction line

Inputs

NPSH & Cavitation

Compare available NPSH at the pump suction with required NPSH. Flag cavitation when NPSHa < NPSHr.

Atmospheric pressure

Pa

Density ρ

kg/m³

Vapor pressure P_v

Pa

Water 20°C ≈ 2339 Pa

Static suction head z_s

m

+ flooded, − lift

Suction diameter

m

Suction length

m

Friction factor f

Suction fittings K

Flow Q

m³/s

NPSH required

m

From pump curve

Related Calculators

Pump System

Full pump-system curve

Minor Losses

Suction fittings K

Fluid Properties

P_v and density vs T

Browse All Calculators