Finally, the meshing of the gears forces liquid through the outlet port under pressure. With no overhung bearing loads, the rotor shaft can't deflect and cause premature wear. Advantages High speed. No overhung bearing loads. Relatively quiet operation.
Design accommodates wide variety of materials.
Disadvantages Four bushings in liquid area. No solids allowed. Fixed End Clearances. As the following list indicates, rotary pumps can be constructed in a wide variety of materials. By precisely matching the materials of construction with the liquid, superior life cycle performance will result.