REXROTH PVV1 PVV5 Vane Pump

1, Series Overview and Core Features
The core design goal of the PVV1 series is to provide smooth, quiet, and efficient hydraulic power. Its main features include:
Excellent low noise performance:
Adopting a "double leaf" or "mother child leaf" design. Each blade slot has a main blade and a sub blade, and under the action of pressure oil, the sub blades always press the main blade towards the inner surface of the stator.
This design completely eliminates the "clicking" sound and wear caused by the separation of blades from the stator due to insufficient centrifugal force during low-pressure start-up or high-speed operation of traditional vane pumps, making the operating sound of PVV1 very quiet.
Combined with optimized stator curves (such as high-order curves), flow pulsation and pressure pulsation are greatly reduced, further reducing noise.
High efficiency and long lifespan:
The double blade structure ensures good volumetric efficiency and reduces internal leakage.
The main friction pairs (such as the distribution plate) are designed with hydraulic balance, which reduces wear and friction losses and improves mechanical efficiency.
The bearing design is sturdy, capable of withstanding high radial loads, and has a long lifespan.
Compact modular design:
The pump body has a compact structure and high power density.
Provides a wide range of installation flanges (SAE, DIN, ISO standards) and shaft extension forms to choose from, making it easy to integrate into various devices.
It is convenient to stack and install single or double pumps of PVV1X series, achieving multi pump function and sharing one drive shaft, saving space.
High performance variable form:
PVV1 is mainly a pressure compensation variable type. The pump is equipped with a pressure regulating valve. When the system pressure reaches the set value, the pump automatically reduces the output flow rate (only outputting the small flow rate required to compensate for internal leakage), thereby significantly reducing power consumption and oil heating while maintaining the set pressure. This is its most commonly used and energy-efficient working mode.
In addition, other control forms such as constant flow and load sensitivity are also available for selection.
Wide range of working media:
Not only suitable for standard mineral hydraulic oils, but also for biodegradable synthetic esters (HETG/HEES) and high water-based hydraulic fluids (HFC), just specify when ordering.
2, Typical Model Analysis (Example: PVV1-1X/* * * - RA15MC0)
Taking common models as an example for decomposition:
PVV1: Series name.
1X: The specification code determines the displacement of the pump. This is a key parameter.
1X is one of the smallest specifications in the series, with common displacements including 6, 8, 10, 12, 16 cc/rev, etc. (depending on the subsequent code).
Other specifications such as 2X, 3X, etc. represent larger displacements and sizes.
/*Here are the specific displacement codes and variable control form codes. For example:
/040 may represent 40 cc/rev (for large specifications).
/016 may represent 16 cc/rev.
The code also includes control methods, such as RA representing pressure compensation.
RA: Control mode code. RA stands for Pilot Controlled Pressure Compensator with External Adjustment. Users can set the maximum working pressure by adjusting the handle on the pump.
15: Maximum work pressure code. 15 represents a maximum working pressure of 150 bar (approximately 2100 psi). Common options include 10 (100 bar) and 20 (200 bar).
M: Install flange/shaft extension form. M usually represents SAE C-type two hole flange with rectangular shaft extension.
C0: Rotation direction and oil port position. C0 usually represents clockwise rotation when viewed from the shaft end, and the oil port position is in the standard form.
Flow calculation example: For a PVV1-1X/012-RA15MC0 pump (assuming a displacement of 12 cc/rev), driven by a 1500 rpm motor:
Maximum theoretical flow rate=12 cc/rev x 1500 rpm=18000 cc/min=18 L/min.
The actual flow rate needs to be multiplied by the volumetric efficiency, which is usually above 90%.

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