CENTRIFUGAL PUMPS
CENTRIFUGAL PUMPS
(OP)
Hello Everyone
I am a new joinee for the forum, requesting your help.
I request you to help me know the disadvantages of TOP Suction top Discharge Split case pumps over side suction side discharge
please advice
Thank you
I am a new joinee for the forum, requesting your help.
I request you to help me know the disadvantages of TOP Suction top Discharge Split case pumps over side suction side discharge
please advice
Thank you





RE: CENTRIFUGAL PUMPS
Your question makes it sound like you have already made your mind up that Side/Side configuration is always a more preferable choice.
RE: CENTRIFUGAL PUMPS
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: CENTRIFUGAL PUMPS
the application if for closed loop chilled water pumps.
The contractor wants to go with TOP Suction, Top Discharge, where as I was proposing the side suction and side discharge.
as per my understanding, the Top suction top discharge pumps will have more vertical load on the flanges and also the maintenance of these pumps is more complicated than side suction and side discharge as you can just remove the upper casing and make any maiantanatce.
please advice if I am correct and also let me know if there are any more points to be considered
Thank you
RE: CENTRIFUGAL PUMPS
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: CENTRIFUGAL PUMPS
The top/ top does save floor square footage in a tight mechanical room, but really depends on the piping layout if that is an advantage or not. In terms of flanges, there shouldn't be any load on the flanges AT ALL from the piping; they are not pipe hangers, and that goes for the horizontal configuration as well.
Side/side or, splitcase pumps as they are commonly called, are fairly easy to open up for inspection, but as I recall, the bundle comes out fairly easily on the B&G's also (oops, I said their name again). A competent maintenance crew can deal with either pump with no inherent advantages or disadvantages other than their experience with one or the other.
I would not put either design as preferred because you will paint yourself (or the owner) into a corner in terms of having choices. I would be more concerned with efficiencies, NPSH margins, shaft L3/D4 ratios, etc. And the slower a pump runs, the longer it will last.
RE: CENTRIFUGAL PUMPS
Thank you very Much for your advices, it was helpful for me
thanks
RE: CENTRIFUGAL PUMPS
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.)