PV7-1X/25-30RE01MCO-16 Rexroth Variable Vane Pump 160 Bar

Product Overview

The PV7-1X/25-30RE01MCO-16, PV7-1X/10-14RE01MC5-16, and PV7-1X/25-30RE01MC5-16 are pilot-operated variable displacement vane pumps from the Bosch Rexroth PV7 Series 1X. With a maximum operating pressure of 160 bar and maximum flow of 270 L/min, these pumps deliver precise, adjustable flow for industrial open-circuit hydraulic systems. The displacement is varied by positioning the stator ring via reciprocating control pistons and an adjustment screw, enabling stepless flow regulation during operation.

Each unit features a robust cast iron housing and NBR seals, engineered for durability in demanding industrial environments. Every pump undergoes 100% simulated-condition testing before shipment, covering pressure hold, flow characteristics, noise level, and control response. Mounting and connection dimensions comply with VDMA 24560/1 and ISO 3019-2, ensuring true drop-in interchangeability.

Technical Specifications 

PV7-1X/25-30RE01MCO-16 (Material # R900580383):

• Model: PV7-1X/25-30RE01MCO-16

• Series: PV7 Series 1X, pilot-operated variable vane pump

• Frame Size: BG 25

• Nominal Displacement: 30 cm³/rev

• Maximum Operating Pressure: 160 bar

• Maximum Flow: 43.5 L/min at 1450 rpm

• Minimum Speed: 600 rpm

• Maximum Speed: 1800 rpm

• Control Type: RE01MCO — Pilot-operated pressure/flow control, MCO spool

• Direction of Rotation: Clockwise (R)

• Shaft End: Cylindrical drive shaft with through-drive (E)

• Mounting: ISO 3019-2, 4-bolt flange

• Port Connections: Suction G 1″ 1/2 / Pressure G 1″ / Drain G 3/8″

• Housing Material: Cast iron

• Seal Material: NBR

• Weight: Approximately 19–21 kg

PV7-1X/10-14RE01MC5-16 (Material # R900520401):

• Model: PV7-1X/10-14RE01MC5-16

• Series: PV7 Series 1X, pilot-operated variable vane pump

• Frame Size: BG 10

• Nominal Displacement: 14 cm³/rev

• Maximum Operating Pressure: 160 bar

• Control Type: RE01MC5 — Pilot-operated pressure control, MC5 spool

• Direction of Rotation: Clockwise (R)

• Mounting: 4-bolt flange 80B4HW, ISO 3019-2

• Housing Material: Cast iron

• Seal Material: NBR

• Weight: Approximately 12.5–13.86 kg

PV7-1X/25-30RE01MC5-16 (Material # R900517464):

• Model: PV7-1X/25-30RE01MC5-16

• Series: PV7 Series 1X, pilot-operated variable vane pump

• Frame Size: BG 25

• Nominal Displacement: 30 cm³/rev

• Maximum Operating Pressure: 160 bar

• Maximum Flow: 43.5 L/min

• Minimum Speed: 600 rpm

• Maximum Speed: 1800 rpm

• Control Type: RE01MC5 — Pilot-operated pressure control, MC5 spool

• Direction of Rotation: Clockwise (R)

• Mounting: ISO 3019-2, 4-bolt flange

• Housing Material: Cast iron

• Seal Material: NBR

• Weight: Approximately 21.4 kg

Key Technical Advantages

1. Axial Compensation for High Volumetric Efficiency
The displacer assembly features axial gap compensation: as operating pressure rises, the end-face clearance is automatically minimized, maintaining optimal volumetric efficiency throughout the pump’s service life.

2. Hydrodynamically Lubricated Plain Bearings
The drive shaft is supported by hydrodynamically lubricated plain bearings. A dynamic pressure oil film forms within the bearing clearance during operation, completely separating the journal from the bearing shell and achieving metal-free running. Compared to rolling bearings, this design offers higher damping characteristics and lower noise emission under radial loads.

3. Low-Hysteresis Pilot Control with High Repetition Accuracy
The pilot-operated pressure controller uses a low-hysteresis spool design, delivering high repeatability of pressure setpoints. Upstroke and downstroke control response times are extremely short, ensuring rapid tracking of system demand without pressure overshoot or undershoot.

4. Flexible Modular Combination Capability
PV7 standard single pumps can be combined with internal gear pumps, external gear pumps, axial piston pumps, or radial piston pumps via the through-drive shaft, forming multiple pump systems without additional couplings or mounting brackets. This modularity significantly simplifies hydraulic circuit layout.

Application Areas

• Machine Tool Industry: CNC hydraulic power units requiring precise pressure control and low-noise operation

• Packaging Machinery: High-speed packaging line hydraulic drives requiring fast response and low pulsation

• Plastic Injection Molding: Hydraulic power source for clamping and injection units

• Metallurgical Equipment: Rolling mill auxiliary hydraulics, continuous casting hydraulic stations

• General Industrial Hydraulic Power Units: Medium-pressure (up to 160 bar) variable-flow open-circuit systems

Expert Maintenance Tips

1. Zero-Stroke Pressure Calibration: PV7 pumps are factory-calibrated for the specified zero-stroke pressure. If actual operating conditions require a different zero-stroke pressure, recalibrate using the adjustment screw rather than replacing the control spool. Calibration must be performed with the system at operating temperature to ensure thermal stability of the pressure setting.

2. Fluid Cleanliness Control: PV7 pilot control spools are sensitive to fluid contamination. Maintain system fluid cleanliness at ISO 4406 18/16/13 or better. Particulate contamination in the pilot circuit can cause spool sticking, manifesting as sluggish or oscillating pressure control response.

3. Installation Concentricity: Ensure concentricity between pump and drive motor within 0.05 mm. Use a flexible coupling to compensate for minor angular misalignment. Excessive concentricity deviation accelerates offset loading on the plain bearings, reducing service life.

4. Through-Drive Shaft Protection: When the through-drive function is not in use, the aluminum protective cover on the rear cover must remain installed to prevent dust and moisture ingress into the drive spline. If a combination pump is to be added, remove the cover and install the coupling sleeve in a clean environment.