DANFOSS / EATON-PUMP E.C./IPOR 33/39 S/A

Built into this unit is an integrated pressure and flow compensator, which Eaton/Danfoss refers to as IPOR. That means both functions are handled by the pump itself without needing separate valving to manage each one. The electronic control side works alongside that compensator to give you responsive adjustment across varying load conditions. For applications where the demand shifts around a lot, that combination tends to keep things running cleaner than a fixed-displacement setup would.