Thank you vpl. Thank you JJPellin for excellent summary.
I am trying to select pump for this duty.
HC in the the vessel in which this pump needs to be fitted, is boiling. Like JJPellin has pointed out, yes the product (HC) will be in equilibrium considering boiling fluid and vapour pressure...
I have to finalize pump model for Vessel mounted Vertical pumps - VS1 type. The vessel has boot with dimensions such that minimum submergence requirement for pump shall be maintained within boot.
The fluid is HC with pumping temp. of ambient to 185°C.
The vapour pressure is 1.2 barg and suction...