Eccentric reducer

An eccentric reducer is useful at the suction side of a pump system when the fluid the pump drives could contain another substance with different density, for example, water with air bubbles or oil with water. The purpose of the eccentric reducer is to properly mix substances that have different densities to reduce variations in the pump system.

If the secondary substance has a smaller density, (like air in water) the straight part of the reducer must be put on the top, thus, there are no “corner” where the air accumulates in a large bubble that could cause the pump to stall or cause cavitation.

If the secondary substance has more density (like water in oil) the straight part of the reducer must be put on the bottom, thus, there is no possibility that the heavier substance accumulates as a bubble that could cause a shock to the pump when absorbed.