VHP, VHI, VHO Series Low Pressure Variable Vane Pump | VHP-F-70, VHI-F-30, VHO-F-12 | Pressure Compensated

VHP / VHI / VHO Series Low Pressure Variable Displacement Vane Pumps

Product Overview: The VHP, VHI, and VHO Series variable displacement vane pumps are the definitive benchmarks for hydraulic power prioritizing high energy efficiency and precision control. Featuring a built-in Pressure Compensated mechanism, these pumps instantaneously adjust flow output to match real-time load requirements. This featured range includes the high-flow VHP-F-70-RA-A3, mid-range VHI-F-30 and VHI-F-40-A2, and the compact VHO-F-12. Utilizing a unique pressure-balanced construction, the pump automatically minimizes displacement once the preset cutoff pressure is reached, significantly lowering energy consumption and inhibiting oil heat—making it the ideal green power core for machine tools and light industrial automation.

Key Technical Advantages:

• Automatic Pressure Compensation: Equipped with a highly sensitive internal regulation mechanism. When system pressure reaches the preset limit (e.g., 7.0 MPa), the pump automatically minimizes flow, eliminating wasted overflow and reducing electrical costs.

• Minimal Oil Temperature Rise: By avoiding unnecessary fluid circulation at high pressure, these pumps effectively inhibit oil heat buildup, extending seal life and reducing cooling requirements.

• Ultimate Silent Operation: High-precision rotor and vane silencing technology ensure exceptionally low decibel levels even under full-load cycles, enhancing the workshop environment.

• Rapid Response & Stability: Provides millisecond-level flow switching response, ensuring smooth actuator movement and precise positioning for automated machinery.

• Target Applications: CNC cutting machines, automated woodworking machinery, small presses, precision grinding equipment, spindle lubrication systems, and light industrial automated lines.

Detailed Models & Parameters:

• Core Series: VHP, VHI, VHO Series (Variable Displacement).

• Model Keywords: VHP-F-70-RA-A3, VHI-F-30, VHI-F-40-A2, VHO-F-12, VHP-F-54.

• Flow Ratings (L/min @ 1800rpm): Includes core displacements 12, 15, 20, 26, 30, 40, 54, and 70.

• Pressure Regulation Range: A1 (0.8-2.5 MPa), A2 (1.5-5.0 MPa), A3 (3.0-7.0 MPa).

• Technical Specs: F (Flange Mounting identifier); RA (Right-hand rotation code); A (Adjustment handle identifier).

• Max Operating Pressure: Rated continuous working pressure up to 7.0 MPa (70 Bar).