Problems Related to Specific Circumstances
A semi-open impeller has only one shroud. The second shroud is replaced by a stationary wear face cast integrally with the casing or by a stationary wear plate firmly attached to the casing. Experience has shown that the clearance C (Fig. 19–1) between the impeller vanes and the wear face has a profound influence on the performance of the pump.
KeywordsClay Porosity Sulfide Rubber Sewage
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