For use in oil circulation lubrication systems

ZM multicircuit gear pump units are selfpriming and valveless pumps. They are used in oil circulation lubrication systems with 2 to 20 separate delivery circuits. Unused outlets must be returned to the reservoir. The pumps consists of an electric motor, adapter flange, coupling and a gear pump. The pump can be mounted separately from the reservoir or as a flanged pump on the reservoir. A special design with seals for horizontal mounting below lubricant level is available. The fluids to be pumped must have enough lubricity for the pump to lubricate itself.

Some of these distribution pumps require an attached, singlecircuit priming pump that operates separately. The priming pump restricts differential pressure within the multicircuit pumps and helps to provide uniform delivery rates. It is advisable to filter the oil upstream of the distribution pump inlet.