Is the flow channel width of the closed impeller in a centrifugal pump constant?
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As the title suggests, I would like to know whether the flow channel width of the closed impeller in a centrifugal pump (the distance between the front and rear cover plates of the impeller) changes from the inside to the outside If it changes, how does it change? Thank you.
It doesn’t change; the width remains constant. The original poster can search for images online
Generally, they get smaller, but there are also those that remain unchanged.
It decreases gradually from the inlet to the outlet; for some impellers, it remains constant from a position near the outlet all the way to the outlet, but it decreases from the inlet to the first half of the path.
Generally, they get smaller, but there are also those that remain unchanged. To achieve a certain head, the impeller flow channels are designed to become smaller and smaller. What remains unchanged is usually impellers such as those used for pumping slurry.