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  • Users: Oldox
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  1. Oldox

    Why VFD pumps produce flow more than rated flow at low speed

    I newly joined here and hope to get help. We have three identical centrifugal pumps with VFD parallelly installed in a system. The pumps are designed and tested at 560 M^3/hr @ 100% speed (1750 rpm); But these pumps could get 676 - 699 m^3/r at only 58.9-86.7% speed. What did it happen? Does the...

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