Vickers KBHDG Series Proportional Valves

Vickers KBHDG proportional directional valve
Vickers KBHDG Series Proportional Valves - Image 2

Description:

The Vickers KBHDG series proportional valves deliver precise and dynamic flow/pressure control in hydraulic systems, with integrated electronics, spool-position feedback, and robust construction for demanding industrial applications. With part of the trusted Vickers by Danfoss valve portfolio, KBHDG valves offer high flow capacity and reliable performance, suitable for heavy-duty applications such as metal forming, hydraulic presses, injection molding, and general industrial automation. Their two-stage directional design, combined with onboard amplifier and standard interface (e.g. ISO 4401), makes them a plug-and-play solution for modern hydraulic control systems.

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Vickers KBHDG Series Proportional Valves

Advantages of Vickers KBHDG Series Proportional Valves

  • Integrated electronics & plug-and-play design: On-board amplifier with factory-set gain, deadband compensation and offset deliver reliable and repeatable performance valve-to-valve — reducing setup complexity.

  • High dynamic response and precise control: Spool-position feedback (via LVDT) ensures accurate servo control of flow and pressure, suitable for closed-loop hydraulic circuits requiring stable and responsive operation.

  • Wide hydraulic performance range: Capable of handling high pressures (up to ~315–350 bar) and substantial flows (tens to hundreds of liters per minute), making them versatile for heavy-duty industrial systems.

  • Simplified installation & maintenance: Standard ISO 4401 subplate mounting, 7-pin plug connection, and factory-tuned electronics minimize installation errors and allow quick valve replacement when needed.

  • Robust and reliable under harsh conditions: Designed for industrial applications such as metal forming, injection molding, presses, and more — suitable for demanding environments.

Parameter Typical Specification / Details
Product Type Proportional two-stage directional valve
Series KBHDG (e.g. KBHDG5V / KBHDG4V variants)
Manufacturer / Brand Vickers by Danfoss
Actuation Type Solenoid-controlled, pilot operated / directional proportional valve
Electrical Supply 24 V DC (standard)
Control Input Signal ± 10 V command; some models support 4-20 mA command signal option
Feedback Spool-position feedback via LVDT on pilot and/or main stage (servo control)
Maximum Pressure Up to ~315 bar (some models up to ~350 bar / 5000 psi) depending on size and variant
Flow Capacity Example: model KBHDG5V-52C-95N … provides ~95 L/min per A port (≈ 25.1 US gpm)
Mounting Interface ISO 4401 (e.g. NFPA D05 for size 05, etc.) / Subplate mounting
Seal Type Viton (for hydraulic fluids compatibility)
Fluid Cleanliness Requirement 17/15/12 micron or better
Fluid Type Standard anti-wear hydraulic oils (and compatible fluids)
Temperature Range (Hydraulic Operating) Typically from around –20 °C to +70 °C (varies by model)
Electrical Connection 7-pin standard plug connector (factory-wired on-board amplifier)
Special Features Onboard electronics (eliminates separate amplifier), factory-sealed adjustments for valve-to-valve reproducibility, fast dynamic response, wide spool and flow options.
Applications Metal forming, injection/blow molding, hydraulic presses, machine tools, pulp & paper, wood processing, turbine control, marine/offshore, test & simulation.
Installation / Maintenance Subplate mounting; simplified wiring and replacement; minimal external control electronics.