VD Series are able to work with the same efficienty on both rotation directions. The by-pass assembly position should be reversed when the dischange port is changed on the pumps ebdowed with by-pass assembly. Elevated pressures can be obtained even with low revolution speeds and high efficienty with low flow rates due to positive displacement feature of these pumps. Required flow rates can easily be obtained by chancing the speed beacuse of flow rate and revolving speed are almost directly proportional. All liquids with viscosity ranging from 38 to 250,000 SSU can be transferred without any difficulty.
VD Series Internally Eccentric Pumps Catalog