Direct-Acting Proportional Directional Valves .

Compact direct-acting proportional directional valves without position feedback (4WRA) and in sandwich form (ZDC). Sizes 6 and 10, rated flow up to 40 l/min at ΔP=10 bar, working pressure up to 31.5 MPa. Proportional solenoids with 0.8–1.5 A control current, non-linearity ≤4%, hysteresis ≤5%. Lower cost than closed-loop 4WRE — used where high accuracy is not required: soft start/stop, auxiliary cylinder speed control, remote throttle control.