Pump Head

Pump differential head from suction and discharge pressure, with optional elevation and velocity terms.

App id: FLUID-16. Reference version 1.0.

How to fill it

Fill the inputs. The tool shows the outputs.

On the tool screen, Calc is the working sheet. Presets stores values you reuse. Reference is the formula, assumptions, and provenance below.

Formula

H = (P₂ − P₁)/(ρg) + (v₂² − v₁²)/(2g) + (z₂ − z₁)

Inputs

Name	Unit
Suction pressure (camera)	`kPa`
Discharge pressure (camera)	`kPa`
Density	`kg/m3`
Suction elevation (optional)	`m`
Discharge elevation (optional)	`m`
Volumetric flow (optional)	`m3/s`
Suction diameter (optional)	`mm`
Discharge diameter (optional)	`mm`
Gravity (optional)	`m/s2`

Outputs

Name	Unit
Pump head (hero result)	`m`
Differential pressure	`kPa`
Pressure head	`m`
Velocity-head contribution	`m`
Elevation contribution	`m`

Diagnose

This tool does not attach diagnose observations.

Assumptions

Suction and discharge pressures must use the same gauge/absolute convention.
Velocity terms apply only when flow and both diameters are entered.

Provenance

Steady-flow energy equation between suction and discharge gauges.