NPSHa Calculator
Atmospheric Pressure (P
atm
) in kPa
Static Suction Head (h
s
) in m
Vapor Pressure (P
vapor
) in kPa
Friction Loss (h
f
) in m
Fluid Density (ρ) in kg/m
3
Reservoir Position
Reservoir Above Pump
Reservoir Below Pump
Reservoir Type
Open to Atmosphere
Pressurized
Reservoir Pressure (P
res
) in kPa
NPSHr (Required) in m
Calculate NPSHa
Result
Value
NPSHa
-