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Positive Displacement Injectors

Positive Displacement Injectors (PDIs) are an excellent means of providing lubrication to machinery. Using a piston principle, the PDI lubricates individual points with specific amounts of oil. There are six output sizes to choose from: 0.06, 0.10, 0.16, 0.20, 0.30, and 0.50 CCs per cycle. A typical system will include a pump, any number of PDIs, and the necessary tubing and fittings.

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Lubrication Cycle

At the start of the lubrication cycle, the PE-34 or PE-44 Series pump builds pressure. Upon pressure build-up, the PDIs deliver the pre-set amount of oil. At the end of the lubrication cycle, a pressure unloading valve opens to return line pressure to 0 PSI. This allows the PDIs to reset for the next cycle.

Other Specs

Model Description Output Volume (cc/cycle)
PDI-06 PDI 0.06
PDI-10 PDI 0.10
PDI-16 PDI 0.16
PDI-20 PDI 0.20
PDI-30 PDI 0.30
PDI-50 PDI 0.50