Pilot solenoid operated proportional directional control valve
These pilot solenoid operated proportional directional control valves use a nozzle flapper valve as pilot valve and perform spool position feedback control by detecting the displacement of the main valve with the differential transformer.
Direct operated servo valve
Ideal for closed loop control of the position, speed, and pressure of main machine’s actuators. High responsiveness is achieved by combining the valve with the dedicated driver.
Pilot solenoid operated servo valve
Ideal for closed loop control of the position, speed, and pressure of main machine’s actuators. The orifice nozzle adopted as the pilot nozzle has a large diameter for a nozzle flapper type valve and achieves greater resistance to contamination.
Manual proportional directional control valve (with pressure compensation, multiple valve series)
Stacking type multi-control valves that are equipped with the bypass type pressure compensation function and show proportional flow rate characteristics. The pump pressure can be changed according to variation of the load pressure, with the excess flow bypassed to the tank.
Solenoid operated proportional directional control valve (with pressure compensation, multiple valve series)
Stacking type control valves that show pressure compensated type proportional flow rate characteristics and control the flow rate in proportion to electrical current regardless of the load level. Combining the valve with a variable displacement pump enables construction of a power match circuit that outputs the required pressure/flow rate.
Open loop control driver (for AC power supply)
Achieves optimum control of open loop control type solenoid operated proportional control valves. The constant current characteristics suppress the power supply voltage fluctuation, and the output current fluctuation due to temperature rise of the solenoid, to almost zero.
Open loop control driver (for DC power supply)
Achieves optimum control of open loop control type solenoid operated proportional control valves. The constant current characteristics suppress the power supply voltage fluctuation, and the output current fluctuation due to temperature rise of the solenoid, to almost zero.
Minor loop control driver (for AC power supply)
Achieves optimum control of minor feedback control type LEM* valves by detecting the spool position with a differential transformer. The constant current characteristics suppress the power supply voltage fluctuation, and the output current fluctuation due to temperature rise of the solenoid, to almost zero.