KBFDG4V proportional valves are designed to provide a controlled oil flow in direct proportion to a command signal. They are available in two types; a double solenoid version that will provide reversible flow to an actuator and a single solenoid throttle version that provides a single direction of flow. Hydrostats are available for load compensation and parallel flow path modules are available that will boost the flow capacity of single solenoid throttle versions to nearly twice that of the standard valve. Additionally, both of these valve types can be supplied with or without an integral amplifier built directly onto the valve.

KBFDG4V-3

A Range of proportional directional and throttle valves with integral control electronics. Factory-set adjustments of gain, spool deadband compensation and offset ensure consistent repeatability valve-to-valve. The only electrical inputs required are power supply (24V) and a voltage command signal of ± 10V or 4-20 mA. The amplifier is housed in a robust metal enclosure, sealed against ingress of water and other fluids. Electrical connections are via a standard 7-pin plug. A spool position monitor pin allows the function of the valve to be electrically monitored. Ramp functions, if required, can be generated externally.

Features and benefits

• Factory-sealed adjustments ensure valve to valve reproducibility
• Installation wiring reduced and simplified
• Standard 7-pin connector
• Standard 24V DC supply with wide tolerance band
• Optional ± 10V DC or 4-20 mA command signals
• Valve with integrated amplifier selected, ordered, delivered and installed as one performance- tested package
• Spool position monitor pin to help with troubleshooting
• Simple valve removal and replacement for service (plug and play)
• Vibration and shock tested
• Auxiliary DIN rail mounted electronic function modules available
• Full CE electromagnetic compatibility.- 2014/30/EU
• IP65 and IP67 valve environmental protection rating
• Optional valve enable function