Net Positive Suction Head - Available (US Customary)

Calculate NPSH Available

Habs = Absolute head at liquid surface in suction pit (feet of head) (elevation dependent)
Hstat = Static elevation of pump inlet eye above liquid (feet of head) (-head if water above pump eye!)
Hfric = Frictional head loss in inlet piping (feet of head)
Hvp = Absolute vapor pressure of liquid at pumping temperature (feet of head); temperature dependent

----- INPUT VALUES -----

Habs Feet
Hstat Feet
Hfric Feet
Hvp Feet