closed impeller

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Related to closed impeller: open impeller


The rotating member in a pump consisting of a disk with vanes attached to it; moves liquid by accelerating the liquid radially outward.
References in periodicals archive ?
The PumPac 8000BB Diamond Series is designed for centrifugal pumps and motors where thrust loads are light and radial loads predominate (such as in double-suction pumps and pumps with closed impellers.
The wear-resistant closed impellers are made from high-chrome cast iron.
The performance envelope of these pumps has recently been extended following the introduction of pumps with closed impellers and multistage units.