A double variable vane hydraulic pump is a type of positive displacement pump that operates by moving fluid using vanes that slide in and out of a rotor. The term "double variable" refers to the pump's ability to vary both the displacement and flow rate of hydraulic fluid independently, making it a highly adaptable component in hydraulic systems. The "vane" element refers to the blades or vanes that move in the rotor's slots to create chambers that expand and contract, pushing fluid through the system.

Key Features of a Double Variable Vane Hydraulic Pump

Adjustable Flow and Pressure Control: The primary feature of a double variable vane pump is its ability to adjust both flow and pressure independently. This gives operators precise control over the performance of the hydraulic system, which is particularly useful in applications where variable load demands are common. The pump can be adapted to meet the specific needs of different machinery or tasks, whether that involves high pressure for heavy lifting or lower, more consistent flow rates for delicate operations.

Compact Design: Compared to other types of hydraulic pumps, such as piston pumps, the double variable vane pump has a more compact and lighter design. This makes it an attractive choice for machinery where space and weight are important considerations, such as mobile equipment and vehicles. The compactness of the pump also allows for easier integration into systems without requiring significant modifications.

Smooth and Continuous Flow: Vane pumps are known for their ability to deliver smooth and continuous fluid flow, reducing the risk of pressure spikes or system vibrations. This smooth operation helps protect the system's components from wear and tear, extending the life of the pump and other hydraulic components. The steady flow is also essential for providing reliable performance in demanding applications.

https://www.dxvanepump.com/product/pv2r-series-vane-pumps-with-high-pressure-and-lower-noise/pv2r31-double-pump-hydraulic-power-vane-pump-with-low-noise-and-high-pressure.html
Note: 
1. When the nominal displacement "4", "6", and "8" pumps are used with a pressure exceeding 16MPa, the rotation speed should exceed 1450r/min.
2. When using a large-displacement single pump and corresponding double pumps at high speeds, the suction inlet negative pressure should be reduced.
3. When using synthetic hydraulic oil and aqueous hydraulic fluid, the maximum speed is limited to 1200r/min.
4. For occasions where low noise is particularly required, it is recommended that the working speed be 1000r/min.
5. The driving power is under the working conditions of P=16MPa and n=1500r/min.