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under filing impeller vanes

thread407-65424

under filing impeller vanes

under filing impeller vanes

(OP)
Gents,
i am planing to trim an impeller and work out the new dia. to meet the process requirments. i red about vane under filing to increase the flow and reduce the vane pass freq. can uny body help how we do this? how it improves the impeller performance.
i am trming the impeller for the original flow at lower diff. head by changing the system resistance....any objection
upm

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