Hydraulic Vane Pump PV7 PV7-1X PV7-1A PV7-1X/06 Series PV7-1X/06-10-RA01MA0-10

1. Technical parameters
Displacement: 10 cubic centimeters per revolution.
Rated pressure: 10MPa (100bar).
Maximum pressure: 16MPa (160bar).
Rated speed: 1200r/min.
◦ Speed range: 900-1800r/min.2. Working Principle
This vane pump is a direct-acting vane pump with variable displacement, mainly composed of the casing, cover plate, rotor, vanes, stator ring, compression spring and control board, etc. When the drive rotor rotates in the stator ring, under the action of centrifugal force, the guide vanes in the rotor will be in close contact with the inner sliding surface of the stator ring. When the rotor rotates, the working volume composed of the blades, rotor, stator, control board and cover plate changes. In the oil suction zone, the volume gradually increases, creating a vacuum, and the oil is sucked in under the action of atmospheric pressure. As the volume of the oil discharge area gradually decreases, the oil is squeezed out, thus achieving the process of oil suction and discharge. The position of the stator ring is controlled by the spring and the adjusting screw. When the system pressure reaches the set value, the stator ring will move towards the zero position, thereby regulating the flow rate.

3. Product features and advantages
Low noise: Noise optimization is achieved by adjusting the height adjustment screw, resulting in low operating noise.
◦ Low pulsation: Special design helps achieve low pulsation flow, enabling extremely high repeatability accuracy and low pressure peaks during downlink control.
◦ Long service life: Hydrodynamic lubricated sliding bearings ensure a long service life.
◦ Fast response: It features a relatively fast control response speed and can quickly adapt to changes in system pressure and flow rate.

4. Usage functions and purposes
◦ Usage function: The main function is to provide variable flow pressure oil for the hydraulic system. By adjusting the displacement, it can meet the flow requirements under different working conditions. At the same time, it can automatically adjust the output flow according to the system pressure to achieve energy conservation and stable operation.
Application: It is suitable for hydraulic systems that require variable flow and pressure control, such as machine tools, injection molding machines, hydraulic presses, lifting and transportation machinery, etc.

5. Applicable machines and scenarios
◦ Applicable machines: Widely used in CNC machine tools, injection molding machines, hydraulic presses, bending and shearing machines, and various other hydraulic mechanical equipment.
◦ Applicable scenarios: It is suitable for industrial open-loop systems, occasions with high requirements for the control accuracy of flow and pressure in hydraulic systems, as well as environments that need low noise and low pulsation operation.

6. Similar models
Models such as PV7-1X/06-06-RA01MA0-10 and PV7-1X/06-16-RA01MA0-10 have similar structures and working principles to PV7-1X/06-10-RA01MA0-10, but they differ in parameters such as displacement.

7. Precautions for Use
◦ Rotation direction limitation: Vane pumps have a specified rotation direction and are not allowed to rotate in the opposite direction. This is because the rotor blade grooves are inclined, the blades have chamfers, and the throttle grooves and suction and discharge ports on the oil distribution plate are designed according to the predetermined rotation direction.
Assembly requirements: The oil distribution plate and the stator must be correctly positioned with locating pins. The blades, rotor, and oil distribution plate must not be installed in reverse. The suction area on the inner surface of the stator is prone to wear. If necessary, it can be installed upside down.
◦ Cleaning requirements: When disassembling and assembling, pay attention to the cleanliness of the working surface. During operation, the oil should be well filtered to prevent impurities from entering the pump.
◦ Gap adjustment: The gap between the blade and the blade groove should be appropriate. If the gap is too large, leakage will increase; if it is too small, the blade cannot expand and contract freely, which may lead to abnormal operation. The axial clearance of vane pumps has a significant impact on volumetric efficiency. The axial clearance of small pumps is generally 0.015-0.03mm, while that of medium-sized pumps is 0.02-0.045mm.
Oil requirements: The temperature of the oil should generally not exceed 55℃, and the viscosity should be between 17 and 37mm²/s. If the viscosity is too high, it will be difficult to absorb oil; if it is too low, there will be severe leakage.