NPSHA Calculator

NPSHA CALCULATOR

Net Positive Suction Head Available Calculation for Pump Systems

Input Parameters

Tank Operating Pressure (bara)

Tank Liquid Level (m)

Elevation Difference between tank bottom to pump suction (m)

Friction Loss (bar)

Suction Filter Loss (bar)

Acceleration Head (bar)

Vapor Pressure (bara)

Density (kg/m³)

NPSHA (bara)

0.453

NPSHA (m)

6.13

NET POSITIVE SUCTION HEAD AVAILABLE

6.13 m

CALCULATION STATUS: COMPLETE

NPSHA is the total suction head available at the pump impeller
Higher NPSHA values indicate better pump suction conditions
NPSHA must exceed NPSHR (Net Positive Suction Head Required) for proper pump operation
Insufficient NPSHA can cause cavitation and damage to pump components