Suction lift & vapor pressure... math check, please
Suction lift & vapor pressure... math check, please
(OP)
I'm working on a pump for a suction lift application & want to insure that the pressure at the pump inlet remains high enough to prevent vaporization of the liquid. The liquid is 50% sulfuric acid at ~25 deg C. Vapor pressure at this temp is 8mmHg. The static suction pressure will be 58.2 kPa or 436.8mmHg (14 ft head/lift). Appears that vaporization won't be an issue IF I've done the math correctly. Can someone please check me on this?





RE: Suction lift & vapor pressure... math check, please
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RE: Suction lift & vapor pressure... math check, please
thread407-259273: Cavitation or deadhead?
and
thread407-260505: Suction Lift.
RE: Suction lift & vapor pressure... math check, please
This kind of work is outside the norm for me... my job is manipulating molecules to make better brewing products. However, I've found little interest from any vendors in actually providing a solution for this lift application. So, I'm learning to do it myself. It's both the benefit & detriment of working for a small company where everyone wears many hats!
RE: Suction lift & vapor pressure... math check, please
Yes, it must be subtracted from 760 mm Hg.
Good luck,
Latexman
RE: Suction lift & vapor pressure... math check, please
See http://en.wikipedia.org/wiki/NPSH
or http:
RE: Suction lift & vapor pressure... math check, please
Good luck,
Latexman