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Effects of worn cutwater/throat in pump

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arm83

arm83

Mechanical
Joined
Aug 25, 2006
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Hi everyone,
I have been searching online for information about the effects of a worn cutwater/throat in pumps but have not been too sucessful. Can anyone help ?
Thanks alot.
 
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as the throat area increases, the BEP of the pump moves further out, and the curve flattens.
It is pretty much direct - if the throat area increases by 10%, the pump BEP moves out 10% - at some point, the impeller will end up limiting.
 
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