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PDI Pumps

The PE-34 and PE-44 Series positive displacement pumps deliver precise amounts of oil to lubrication points. The units contain an auto-cyclic gear pump which contains a depressurizing mechanism to return line pressure to 0 PSI.

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Additional Features

Adjustable Cycles

Adjustable output cycle time of 1-999 seconds and adjustable interval time between lubrication cycles of 1-999 minutes (PE-34 Series)

External Controls

The PE-44 Series is specifically designed for use with external user installed controls.

Durable Reservoirs

Easy view plastic reservoir on 3-liter models, steel reservoir with sight gauge on 6-, 8-, and 20-liter reservoirs

Easy Filling

Large fill plug simplifies adding or changing lubricant

Oil Filter

Convenient drop-in filter in fill port keeps oil clean


These pumps use positive displacement injectors (PDIs) to deliver precise amounts of oil to the lubrication points. PDI injectors, fittings, and accessories are available to create a central lubrication system.

Other Specs

Model Description Pump Type Reservoir Capacity (liters) Oil Delivery Time Interval Time Between Cycles
PE-3403 PDI Pump Auto Cyclic 3 1-999 sec 1-999 min
PE-3406 PDI Pump Auto Cyclic 6 1-999 sec 1-999 min
PE-3408 PDI Pump Auto Cyclic 8 1-999 sec 1-999 min
PE-3420 PDI Pump Auto Cyclic 20 1-999 sec 1-999 min
PE-4403 PDI Pump Standard Pump 3 User Installed User Installed
PE-4406 PDI Pump Standard Pump 6 User Installed User Installed
PE-4408 PDI Pump Standard Pump 8 User Installed User Installed