NPSH where Temperature known
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.
View table of Saturated Steam properties.
- 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 feet of head will always be zero (0) regardless of elevation.
- Temperature cannot be less than 32°F.
- Temperature cannot be greater than 212°F.