Does a change in the viscosity of the fluid pumped by a diaphragm pump affect the volumetric flow rate?
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The company has a high-pressure diaphragm pump used for transporting coal slurry. I would like to ask those experienced with such equipment: in this type of reciprocating pump, when the inlet is filled and the viscosity of the fluid increases by several hundred centipoise, does this have any effect on the volumetric flow rate of the fluid at the pump’s outlet?
It generally has no impact; diaphragm pumps have very strong suction, and as long as it remains within the design parameters, there will be no issue.