P391 Enerpac Lightweight Hydraulic Hand Pump, 10,000 psi, 55 in³, Single-Speed

P391 Enerpac Lightweight Hand Pump is the 55 in³ single-speed alternative within Enerpac’s lightweight P-Series. It reaches 10,000 psi but omits the low-pressure high-flow stage found on P202 and P392.

Choose Simplicity When Two-Speed Operation Is Not Needed

For short-stroke cylinders, smaller oil volumes or jobs where cycle time is not critical, a single-speed pump can be the straightforward choice. P391 delivers the same displacement on every handle stroke and avoids the automatic stage transition used by its two-speed relatives.

The lightweight construction uses a glass-filled nylon reservoir, encapsulated aluminum pump base and non-conductive fiberglass handle. These features reduce carrying weight and improve corrosion resistance compared with traditional all-steel hand pumps.

P391 shares its 55 in³ reservoir class with P202 and P392. If the job involves substantial free cylinder travel, one of those two-speed models can reduce handle strokes before the load is reached.