Head rise to Shut off
Head rise to Shut off
(OP)
Hello guys,
It came to know that head rise to shut off ratio should be between 110% to 120%. I think upper limit of 120% stands fore pump downstream sizing. but dont understand why ratio should be not be less than 110%?
Regards
Rotaryguy
It came to know that head rise to shut off ratio should be between 110% to 120%. I think upper limit of 120% stands fore pump downstream sizing. but dont understand why ratio should be not be less than 110%?
Regards
Rotaryguy





RE: Head rise to Shut off
RE: Head rise to Shut off
RE: Head rise to Shut off
http://www.mcnallyinstitute.com/02-html/2-03.html
RE: Head rise to Shut off
RE: Head rise to Shut off
A flat curve would only work well with a high resistance system curve that had no flat areas in its curve. You'd have to stay well away from low end flows where curves have flat regions.
"We have a leadership style that is too directive and doesn't listen sufficiently well. The top of the organisation doesn't listen sufficiently to what the bottom is saying." Tony Hayward CEO BP
http://www.youtube.com/watch?v=hpiIWMWWVco
"Being GREEN isn't easy." Kermit
http://virtualpipeline.spaces.liv
RE: Head rise to Shut off
Johnny Pellin
RE: Head rise to Shut off