Start with what the hydraulic circuit needs: PUD1101B is an Enerpac Economy Electric Hydraulic Pump arranged for single-acting advance / auto-retract operation. 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.
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. This pump carries a 1.0 gal reservoir. That capacity is a practical selection factor when comparing otherwise similar valve and voltage configurations. At rated pressure, Enerpac specifies 20 in³/min @ 10,000 psi from the 0.5 hp motor package.
Model-Level Guidance for PUD1101B
A practical comparison is PUD1100B. Between the two, reservoir capacity is 1.0 gal on PUD1101B versus 0.5 gal on PUD1100B. That gives the buyer a concrete reason to choose one model over the other.
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 | 1.0 gal |
| Valve Configuration | Electric dump valve |
| Valve Operation | Solenoid Dump |
| Cylinder Compatibility | Single-Acting |
| Voltage | 115V |
| Phase | Single Phase |
| Frequency | 50/60 Hz |