Positive displacement pumps are inefficient in speed when compared to centrifugal devices, but have the ability to discharge highly vicious liquids - https://goo.gl/xtfcNy
A gear pump that is handling high density liquids is prone to seepage, causing major block out of the discharge point which can further damage the internal parts of the pump. So, is there any option to deal with the issue? - https://goo.gl/MhJWce
Rotary lobe pumps can be found in a wide variety of industries. Their popularity comes from a number of attractive properties such as reliability, high efficiency, handling of solids, and CIP (Clean-In-Place) sanitary qualities. - https://goo.gl/3c7HBL