Servo-Performance Proportional Directional Valves with Feedback
KBSDG4V-5 1* Series
Pressures to 315 bar (4500 psi)
The KBSDG4V-5 line offers a range of proportional directional valves with integral control electronics. Factoryset adjustments of gain and offset ensure consistent reproducibility valve-to-valve.
These four-way solenoid operated proportional valves have a high dynamic performance which enables them to be used in closedloop applications, previously possible only with servo valves. Various spool options are available for rated flows up to 80 L/min (21 USgpm). Working pressures are to 315 bar (4500 psi). The spool position is monitored by an LVDT which feeds back information to the amplifier, enabling spool position to be accurately maintained.
This valve is available with an integral amplifier built directly on to the valve.
The only electrical inputs required are power supply (24V) and a command signal, either ±10V or 4-20 mA (model code selectable). The amplifier is housed in a robust metal enclosure, sealed against ingress of water and other fluids. Electrical connections are via an industry 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
Wide range of zero lap spool and flow rate options.
Supported by a broad range of auxiliary function modules.
Electronic feedback LVDT ensures accurate spool position control.
Internal current feedback provides optimal control.
Optional command signal, ±10V or 4-20 mA (model code selectable).
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 & play).
IP67 valve, environmental protection rating.
Optional valve enable function.
Proportional Two-Stage Directional Valves Servo Performance with Double Spool Feedback
Pressures to 350 bar (5000 psi)
Eaton proportional valves shown in this catalog are suitable for working pressures up to 350 bar (5000 psi) and flow rates to 720 l/min (190 USgpm). They are designed to provide a controlled oil flow in proportion to a command signal, with spool position feedback to provide accurate control. Zero lapped spools are available for closed loop control applications and hydrostats are available for load compensation.
A range of proportional directional valves with control amplifiers built directly on, and prewired to the valves. Factory-set adjustments of gain, spool deadband compensation, and offset ensure high valve-to-valve reproducibility. The only electrical inputs required are power supply (24V) and a voltage command signal of ±10V . 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 point allows the function of the valve to be electrically monitored . Ramp functions, if required, can be generated externally.