Rexroth PV7 Series Variable Vane Pumps

The Rexroth PV7 Series is a pilot-operated variable displacement vane pump specifically engineered for industrial applications requiring low noise levels and high efficiency. Known for its compact design and fast response times, the PV7 is a staple in machine tool manufacturing, plastic injection molding machines, and general industrial hydraulic power units.

These specific configurations—PV7-1A/16, PV7-1X/63, and PV7-1X/100—provide a versatile range of flow rates and control options. With their optimized internal geometry, PV7 pumps minimize pressure pulsations and operating noise, making them ideal for indoor factory environments where strict acoustic regulations are in place.

Engineering Configuration Highlights

To ensure the correct replacement for your hydraulic system, it is essential to identify the control and mounting specifications of these PV7 units:

PV7-1X/16-20RE01MC0-16 & MC3: These 16cc to 20cc units feature the RE01 Pressure Compensator control. The pump automatically adjusts its displacement to maintain a set system pressure, reducing energy consumption during the holding phase. The MC3 variant offers a specific mounting and porting configuration tailored for compact manifolds.
PV7-1X/63-71RE07MC0: A mid-range 63cc unit equipped with the advanced RE07 Flow and Pressure Control. This load-sensing capability allows the pump to match both the flow and pressure demands of the machine cycle, providing the highest level of energy efficiency.
PV7-1X/100-118RE07MC0-16: A high-capacity 100cc unit designed for large-scale industrial machinery. Like the 63cc model, it utilizes the RE07 control to manage heavy loads with precision while maintaining a low noise profile.

PV7-1A/10-14RE01MC0-16 PV7-1A/25-30RE01MC0-16 PV7-1A/63-71RE07MC0-16 PV7-1A/40-45RE37MC0-16

PV7-1A/100-118RE07MC0-16 PV7-1A/63-71RE07MC0-16 PV7-1X/25-45RE01MC0-08

Exact Technical Specifications Matrix

Feature	PV7-1X/16-20RE01	PV7-1X/63-71RE07	PV7-1X/100-118RE07
Displacement	16 – 20 cm³/rev	63 – 71 cm³/rev	100 – 118 cm³/rev
Control Type	RE01 (Pressure Control)	RE07 (Flow & Pressure)	RE07 (Flow & Pressure)
Max. Pressure	160 bar	160 bar	160 bar
Series	Series 1X / 1A	Series 1X	Series 1X
Mounting	MC0 / MC3	MC0	MC0
Fluid Compatibility	Mineral Oil (HL, HLP)	Mineral Oil (HL, HLP)	Mineral Oil (HL, HLP)

Frequently Asked Questions (FAQs)

1. What are the primary benefits of the PV7 variable vane pump?

The PV7 series offers a combination of variable displacement and extremely low noise levels. Unlike fixed pumps, it only delivers the flow required by the system, which reduces heat generation and energy costs. Its compact size also makes it easy to integrate into existing industrial hydraulic power units.

2. How does the RE01 control differ from the RE07 control?

The RE01 is a standard pressure compensator that destrokes the pump when a preset pressure is reached. The RE07 is a more advanced flow and pressure control (load-sensing) valve that adjusts the pump’s output based on the actual demand of the actuator, providing superior energy savings in complex machine cycles.

3. Can I replace a PV7-1A with a PV7-1X model?

The “1X” and “1A” designations represent different design series. While many mounting dimensions remain compatible, you must verify the porting locations and shaft details to ensure a direct fit. Always check the full alphanumeric code, such as PV7-1X/16-20RE01MC0-16, for an exact match.

4. Why is the PV7 pump preferred for machine tool applications?

Machine tools often require long periods of pressure holding (clamping) with minimal flow. The PV7’s ability to destroke to near-zero flow while maintaining pressure makes it highly efficient for these tasks. Additionally, its low-vibration operation helps maintain the precision of the machine tool.

5. What type of maintenance does the Rexroth PV7 require?

To ensure a long service life, it is critical to maintain clean hydraulic oil and replace filters regularly. Before starting a new or repaired PV7 pump, the housing must be filled with hydraulic oil through the highest drain port to ensure the internal vanes and rotor are lubricated immediately upon startup.