axial thrust
axial thrust
(OP)
The analysis for predicting axial thrust in a single stage open impeller pump is straight forward. Is the same formula used when putting these pumps in series? Specifically, the last pump in my series will see 400 psi inlet pressure. Is it as simple as plugging in my 400 psi for P inlet? That would mean my axial thrust will now be towards the motor rather than away from it as in a single pump?





RE: axial thrust
RE: axial thrust
That thrust - (suction pressure x (seal sleeve area and shaft cross section area at the seal))
Upthrust is bad, and you will want to check shaft stretch and adjust lift settings for open vane pump.
Make sure fabs are good for the higher pressure, mechanical seals designed to operate at the increased seal chamber pressure, etc.
RE: axial thrust
IE, pump type / style -- full / partial or no back blades on the impeller, balance holes etc etc.
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: axial thrust
http://www.kelairpumps.com.au/images/stories/PDF/PumpClinic/PumpClinic12.pdf
http://www.pump-zone.com/topics/pumps/centrifugal-pumps/centrifugal-pump-axial-thrust