A4VSO180DFR/30L-PPB13N00 Rexroth Germany A4VSO180 series industrial axial variable displacement piston pump

The Rexroth A4VSO180DFR/30L-PPB13N00 is a genuine German-manufactured A4VSO series open-circuit axial piston variable pump, equipped with DFR pressure & flow compound control. With a displacement of 180 cm³/r and PPB13 SAE compact flange & ports, this pump allows both system pressure limit and pump flow demand to be set via external hydraulic pilot signals (ports X and Y).

The DFR control is the classic choice for load-sensing and energy-efficient hydraulic systems, where the pump delivers only the flow demanded by the circuit while maintaining a preset pressure margin above load pressure. It is widely used in industrial hydraulic power units, press auxiliary circuits, and process plant systems requiring controllable flow with pressure compensation.

Unlike DR (pressure only) or EO2 (electric signal flow), DFR uses hydraulic pilot pressure for both settings:

• Pilot Port X → Sets the maximum pressure compensator value (like DR, but pilot-adjustable)
• Pilot Port Y → Sets the flow demand / displacement proportionally to applied pilot pressure
• When used with a load-sensing directional valve, port Y senses downstream load pressure + margin → pump delivers only required flow, reducing heat and energy
• Built-in pressure cut-off prevents over-pressurization
• Ideal for systems with varying flow demands and where electrical controls are not preferred

➡ PPB13 compact SAE porting is commonly chosen for manifold-mounted industrial HPUs and space-limited skids.

• Load-sensing hydraulic power units in industrial plants
• Press auxiliary circuits (clamp, eject, advance -- non-main-ram)
• Process industry skids -- filter press, conveyor tensioning, mixer hydraulics
• Hydraulic test benches with pilot-controlled flow/pressure
• Central HPUs feeding multiple workstations via pilot-controlled flow demand
• Retrofit of fixed-displacement pumps to save energy in cyclic operations

Distributed through Rexroth's authorized global dealer network, including:

• Europe: Germany, Italy, France, UK, Spain, Netherlands, Austria, Switzerland, Poland, Sweden
• Asia-Pacific: China, Japan, South Korea, India, Taiwan, Thailand, Malaysia, Vietnam, Australia
• Americas: USA, Canada, Mexico, Brazil, Chile (industrial regions)
• Middle East & Africa: UAE, Saudi Arabia, Turkey, South Africa