VHO & VHI Series Variable Capacity Vane Pump | VHO-F-20, VHI-F-40 | Pressure Compensated

VHO & VHI Series High-Performance Variable Capacity Vane Oil Pumps

Product Overview: The VHO and VHI Series variable displacement vane pumps are the premier choice for modern energy-saving industrial hydraulic systems. As pressure-compensated variable pumps, they automatically adjust flow output according to system demand, significantly reducing energy consumption. This range features core models such as VHO-F-20-A2 and VHI-F-40-A2. Utilizing a precision slide adjustment mechanism, the pump enters a standby state once the preset pressure is reached, effectively preventing oil temperature rise and extending the lifespan of system components—ideal for precision machine tools and automated equipment prioritizing efficiency.

Key Technical Advantages:

• Automatic Pressure Compensation: Equipped with a built-in pressure regulating mechanism. When the system pressure hits the preset value, flow automatically reduces to near zero, eliminating overflow losses and lowering total power consumption.

• Low Oil Temperature Rise: By avoiding unnecessary fluid circulation and high-pressure bypass, these pumps significantly control oil heat, reducing the need for large cooling systems and improving thermal stability.

• Responsive & Silent Operation: High-precision ground rotor and vane components ensure instantaneous flow switching and maintain ultra-low noise levels even at high rotational speeds.

• Compact & Easy Integration: The VHO (Standard) and VHI (High-Pressure/Enhanced) designs are space-efficient, with mounting dimensions following industry standards for easy replacement and integration.

• Target Applications: CNC surface grinders, shoe-making presses, spindle lubrication, woodworking machinery, and automated assembly lines.

Detailed Models & Parameters:

• Core Series: VHO Series & VHI Series (Variable Displacement).

• Model Keywords: VHO-F-20-A2, VHI-F-40-A2, VHO-F-12, VHI-F-30.

• Flow Codes (L/min @ 1800rpm): Including key specifications such as 20 and 40 (Max theoretical displacement).

• Technical Specs: F (Flange Mounting); A2 (Pressure adjustment range, typically 15-70 Bar).

• Pressure Ratings: Maximum continuous working pressure typically rated at 7 MPa (70 Bar).