NPSH (where Temperature is known)

Calculate NPSH Available
1. Enter Water Temperature in degrees Fahrenheit. °F Show Saturated Steam Table (optional)	feet of head #1, #2
2. Select Altitude. Choose... 0 (Sea level) 500 1,000 1,500 2,000 2,500 3,000 4,000 5,000 5,500 feet
Temperature cannot be LESS than 32°F.
Press "Reset All" to CLEAR ALL calculations and enter new values.

Notes

1. Available NPSH must be equal to or greater than the pump's required NPSH. Value of the pump's required NPSH is obtained from the pump performance curve. If NPSH required exceeds Available NPSH, either the temperature of the condensate must be lowered or the tank be elevated to a height where Available NPSH and tank elevation meets or exceeds required NPSH.
2. Pressurizing a tank has no effect on the calculated Available NPSH if the corresponding temperature also rises. In other words, for any water temperature input of 212°F (boiling point) or greater, the ft. of head will always be zero (0) regardless of elevation.

Additional Information

On systems where return temperature is above 200°F at Sea Level, NPSH of pump is important to avoid cavitation problems.

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