PV2r Series Hydraulic Oil Pump (PV2r12/PV2r13/PV2r23)

1. What is the PV2r Series Hydraulic Oil Pump?

2. What are the differences between PV2r12, PV2r13, and PV2r23 sub-series?

• Displacement range: PV2r12 (small displacement, typically 6–50 cc/rev), PV2r13 (medium displacement, 10–80 cc/rev), PV2r23 (large displacement, 20–120 cc/rev).
• Application matching: PV2r12 for light-to-medium load equipment, PV2r23 for heavy-duty machinery requiring high flow.
• Structural scale: Larger sub-series have optimized rotor and vane sizes to handle higher pressure and flow demands.

3. How to interpret the model PV2r12-19-47-F-Reaa-40?

• PV2r12: Base model (small-displacement sub-series designation).
• 19-47: Dual fixed displacements (19 cc/rev and 47 ซีซี/รอบ, core parameter for flow output).
• F: Flange/mounting type code (standard industrial mounting specification).
• Reaa: Combined code for seal material, pressure rating, and control mode (varies by manufacturer’s technical standards).
• 40: Inlet/outlet port size or connection standard (ensures compatibility with hydraulic pipelines).

4. What are the advantages of the “Double Fixed Displacement” design?

• Integrates two independent fixed-displacement pumps in one unit, reducing system complexity and installation space.
• Supports parallel or separate operation of two hydraulic circuits, improving energy efficiency and operational flexibility.
• Delivers stable pressure and flow, ideal for machinery requiring consistent hydraulic performance (e.g., injection molding machines, forging presses).

5. What are the key technical specifications of the PV2r Series?

• Maximum operating pressure: Up to 21 MPA (varies slightly by sub-series).
• Recommended oil viscosity: 15–46 cSt (working temperature range: -10°C to 60°C).
• Flow rate: Determined by displacement and rotational speed (Q = V × n, where Q = flow rate, V = displacement, n = rotational speed).

6. How to select the right PV2r sub-series for my application?

• Calculate required flow rate and pressure based on machinery load and operating speed.
• Match sub-series displacement range to the calculated flow demand (e.g., small flow for precision equipment → PV2r12).
• Confirm compatibility with existing system components (mounting type, port size, oil type).

7. What maintenance is required for the PV2r12-19-47-F-Reaa-40 pump?

• Use clean hydraulic oil meeting ISO 4406 ระดับ 16/13 to prevent vane and rotor wear.
• Replace oil filters every 2,000 operating hours or as recommended by the equipment manual.
• Inspect seals quarterly for leaks; replace worn vanes, rotors, or seals promptly to avoid pressure loss.
• Keep the pump’s suction line unobstructed to prevent cavitation.

8. What common issues may occur and how to troubleshoot them?

• Low system pressure: Check oil level, filter clogging, or vane wear; replace contaminated oil or worn parts.
• Pump noise/vibration: Inspect for cavitation (check suction line) or misalignment (adjust mounting).
• Oil leakage: Tighten connections or replace damaged seals; verify that operating pressure does not exceed the pump’s rating.

9. Is the PV2r Series compatible with different hydraulic fluids?

• Compatible with mineral-based hydraulic oils (recommended), synthetic hydraulic oils, and biodegradable hydraulic oils.
• Confirm fluid compatibility with the pump’s seal material (refer to the manufacturer’s technical data sheet) to avoid seal degradation.

10. Can the PV2r12-19-47-F-Reaa-40 be used in mobile hydraulic systems?

• Yes, it is suitable for mobile equipment (e.g., construction machinery, agricultural machinery) as long as it meets the system’s pressure, flow, and mounting requirements.
• Ensure proper cooling and protection against dust, moisture, and extreme temperatures in mobile applications.