Skip to main content
Danfoss

Proportional Directional Valves

Where to buy

Improved productivity and quality

We offer an incredible range of Vickers by Danfoss proportional directional valves with a variety of features, sizes, flow rates, and performance levels to meet customer demands in industrial and mobile markets. With options for on-board electronics (OBE) and non-OBE, IP67 environmental protection, reduced power consumption, and more, Vickers valves reduce commissioning time, and long-term costs.

Check out the latest proportional valve innovations!

  • The new AxisPro, the intelligent, software-configurable upgrade to the KBSDG proportional valve series.
  • The new KBFRG4-05 proportional valve with a round solenoid design, delivering superior performance, durability and premium features.

  • Size – NG 6 to NG 32 (D03 to D10)

  • Pressure – Up to 350 bar (5,000 psi)

  • Flow – Up to 700 L/min (185 gal/min)

  • Reduce commissioning time through plug-and-play functionality

  • Reduce labor time and costs through minimized wiring and easier serviceability

  • Increase automation and quality

  • Improve productivity and machine uptime

Introducing the next generation of proportional valve performance

KBSDG Proportional Valve: Paving the way for the next-generation AxisPro
 
Introducing the new AxisPro, the intelligent, software-configurable upgrade to the KBSDG proportional valve series. This is more than a product refresh — it’s a complete transformation.

AxisPro brings advanced digital control, seamless connectivity, and real-time configurability to your hydraulic system. If you’ve used KBSDG before — this is the smarter, faster, fully connected version you’ve been waiting for.

• Competitive pricing
• 4–8 week availability (ExWorks Havant)
• Simpler SKU management
• Advanced control, out of the box

Learn more

KBFRG4-05 Proportional Valve

The new Vickers by Danfoss KBFRG4-05 Proportional Valve

High power capacity.
Superior durability.
 
The new KBFRG4-05 proportional valve features a market-leading pressure rating (350 bar), and tools to simplify installation and troubleshooting, including built-in health monitoring. Engineered to withstand the toughest conditions, the valves have an IP67 ingress protection rating, and a robust metal housing for increased vibration and shock resistance. The KBFRG4-05 also complies with industry standard certifications including CE, UKCA, REACH and RoHS.

Upgrade to onboard (OBE) electronics

Proportional valves with onboard electronics offer several advantages, including a factory-matched valve and amplifier, which reduces the possibility of selection and installation errors. Installation and setup is faster and easier, with limited user adjustments and reduced electrical cabinet space requirements.

Our KB family of proportional directional valves with onboard electronics (OBE) features superior reliability and durability, IP67 environmental protection and reduced power consumption. With a controller built in, valves with onboard electronics (OBE) do not require an external controller.

Valves with OBE offer:

  • Easier setup with limited user adjustments for faster, lower cost valve package installation
  • Optimized valve with robust amplifier design
  • Reduced electrical cabinet space
  • Superior durability with high levels of EMC, vibration and shock resistance

Product range

Non-OBE proportional valves (without onboard electronics)

Three performance levels

Our proportional directional valves without OBE are available in three performance levels – ultra, high, and standard performance.

Ultra performance

KSD direct-acting and KHD pilot-operated servo performance valves.

  • Single solenoid high-response valve
  • Spool goes to 4th position when power is removed (pilot spool goes to 4th position on KHD)
  • Spool position feedback (pilot and main-stage spool position feedback)
  • Zero lap spool options
  • Suitable for closed-loop pressure and position control
  • Requires dedicated control amplifier
Design Proportional Valves without OBE

High performance

KFD direct-acting single feedback value.

  • Spool position feedback
  • Suitable for precise speed control and simple closed-loop applications
  • Requires dedicated control amplifier
Design Proportional Valves without OBE

Standard performance

KDG direct-acting and pilot-operated non-feedback valve.

  • No spool position feedback
  • Low-cost valve suitable for shock reduction and simple speed control applications
  • Simple, low-cost electronic requirements
Design Proportional Valves without OBE

OBE proportional valves (with onboard electronics)

Three performance levels

Our proportional directional valves with OBE are available in three performance levels – ultra, high, and standard performance.

Ultra performance

AxisPro® KBSD direct-acting and KBHD pilot-operated service performance valves.
Learn more about AxisPro valves

Single solenoid high-response valve

  • Single solenoid high-response valve
  • Spool position feedback (pilot - and main-stage spool position feedback)
  • Zero lap spool options
  • Suitable for closed-loop pressure and position control
  • Plug-and-play digital electronics with command options and enable function, and no amplifier setup requirements
Proportional Valves with OBE

High performance

KBF direct-acting and pilot-operated single feedback valves.

  • Dual solenoid valve
  • Spool stays in center position when power is removed (pilot spool stays in center position when power is removed)
  • Amplifier has spool position feedback (amplifier has only main-stage spool position feedback)
  • Zero lap spool options available on single-stage
  • Plug-and-play digital electronics with no amplifier-to-valve setup requirements, plus command options, enable function, and programmable ramps
OBE proportional valves

High performance – NEW round solenoid design!

Engineered to withstand the toughest conditions the new KBFRG4-05 proportional valve features a market-leading pressure rating (350 bar), and tools to simplify installation and troubleshooting.

  • Maximum pressure rating 350 bar; tank 210 bar
  • Higher power capacities with the maximum flow of 290lpm @ 57bar
  • Multiple spool options with various flow ratings
  • CAN communication, configurable control modes using Pro-FX Configure
  • Easier diagnostics through LED indicator
  • Enhanced vibration resistance (7.8g random, 50g shock), IP67 Ingress protection rating with high corrosion resistance option available
  • Industry standard certification compliance: CE, UKCA, REACH, RoHS and EMI/EMC

Standard performance

KBD direct-acting and pilot-operated non-feedback valves.

  • Dual solenoid digital valves
  • Spool stays in center position when power is removed (pilot spool stays in center position when power is removed)
  • No spool position feedback
  • Plug-and-play digital electronics with no amplifier-to-valve setup requirements, plus command options, enable function, and programmable ramps
OBE proportional valves

Enhance your system with proportional valve electronics

Add precision, speed and accuracy to your industrial proportional valve application with Danfoss amplifiers and control cards. These add-ons feature user-friendly front panels with LEDs, so you can easily monitor and adjust card functions. The units provide both voltage and current input signals, with translation to standard, efficient PWM output signals.

Click here to learn more

Don’t forget the subplates and bolts kits

To install industrial valves, you need subplates and bolt kits. This hardware is engineered especially for Vickers by Danfoss valves and manifolds to give your systems the flat surfaces and stiffness required for a reliable seal.

 

Documents

Documents
Type Name Language Valid for Updated Download File type

Applications​

  • Machine Tools
  • Injection and blow molding
  • Hydraulic presses
  • Metal forming
  • Primary metals
  • Pulp and paper
  • Wood processing
  • Turbine controls (wind, steam, water, solar)
  • Test and simulation
  • Mobile machinery
  • Oil and gas
  • Marine/offshore
  • Civil engineering​

Designed to perform, built to last​​

A leader in hydraulics for over 100 years, the Vickers by Danfoss portfolio of industrial solutions deliver legendary performance, even under the most extreme conditions. 

Learn more​

PowerSource

Visit PowerSource

Visit PowerSource

Visit PowerSource to view product specifications, literature and helpful tools like product configurators, 2D/3D models, and more.

Explore more