A reduction in the delivery capacity should be allowed for with pumping mediums with high viscosity. The reduction in the delivery capacity for increasing viscosity of the pumping medium can be read from the diagram below. The appropriate pump size can be selected. In the example, a desired delivery capacity of 200 l/min at a viscosity of 2,000 mPas was taken as a basis. The dashed line crosses the interpretation line for the pump at 248 l/min.
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