PUD1100E occupies a distinct point in the Enerpac Economy Electric Hydraulic Pump family because of its single-acting advance / auto-retract operation configuration. The auto-retract function is the important operational cue: this version is intended for cycles where pressure is released for cylinder return rather than held between directional commands.
Hydraulic direction comes from an electric dump valve, matched to single-acting service and advance / auto-retract operation.
Model selection becomes clearer against PUD1100B. In that comparison, input voltage is 230V on PUD1100E versus 115V on PUD1100B.
What the PUD1100E Model Number Means in Practice
Enerpac uses the PUD designation for economy pumps where the operator controls both motor and valve through the pendant rather than a manual valve handle. The hydraulic performance point for this model is 20 in³/min @ 10,000 psi, paired with a 0.5 hp motor. Pendant control lets the operator command the pump without standing at the valve body.
Confirm that the connected equipment uses the single-acting circuit this model is configured to control.
Specifications
| Pump Series | PUD Series |
|---|---|
| Power Source | Electric |
| Maximum Operating Pressure | 10,000 psi |
| Rated Oil Flow | 20 in³/min @ 10,000 psi |
| Reservoir Capacity | 0.5 gal |
| Valve Configuration | Electric dump valve |
| Valve Operation | Solenoid Dump |
| Cylinder Compatibility | Single-Acting |
| Voltage | 230V |
| Phase | Single Phase |
| Frequency | 50/60 Hz |