Jan 13, 2013 #1 Sabergg1981 Mechanical Jun 15, 2012 72 Hi All Does NPSHa for VS4 pumps calculate as usual as OH2 pumps?
Jan 13, 2013 #2 bimr Civil/Environmental Feb 25, 2003 9,337 Yes, here are some condiderations: http://www.eng-tips.com/viewthread.cfm?qid=314350 Upvote 0 Downvote
Jan 13, 2013 #3 Pumpsonly Mechanical Mar 25, 2011 373 NPSHA = (absolute press above the liquid - vapour Press.)X 10 / S.G + liquid level above the impeller inlet. Upvote 0 Downvote
NPSHA = (absolute press above the liquid - vapour Press.)X 10 / S.G + liquid level above the impeller inlet.
Jan 14, 2013 #4 1gibson Mechanical Mar 22, 2010 1,304 More often than not, minimum submergence will be the limiting factor, rather than NPSH. If you plan to use a VS4 where NPSH is the limiting factor (in an application other than an open sump or a tank) then you might have the wrong pump type. Upvote 0 Downvote
More often than not, minimum submergence will be the limiting factor, rather than NPSH. If you plan to use a VS4 where NPSH is the limiting factor (in an application other than an open sump or a tank) then you might have the wrong pump type.
