1. Product Overview

This is a set ofElectro - hydraulic proportional control system, consisting ofMain Control Valve (MCV), Electronic Control Unit (ECU) and Proportional valve/sensor. This system precisely controls the flow and direction of hydraulic oil through electronic signals to achieve fine - tuned movements of the equipment (such as micro - movements and compound actions).

2. Function Analysis of Each Model

MCV116:Main Control Valve (Main Control Valve). This is aMonoblock valve (Monoblock), which is the core hydraulic component of the system. It integrates multiple valve sections (Sections) and is responsible for controlling the movement direction and flow rate of each actuator (such as the boom, arm, and bucket). 116 represents its bore diameter and flow rate level.
A3203 / A3204:Proportional Valve Driver/Amplifier (Proportional Valve Driver). This is aelectronic module, which is responsible for receiving weak signals from the controller or the joystick and amplifying them to drive the proportional solenoid valve. A3203 and A3204 may be drivers of different versions or with different numbers of channels.
G3201:Electronic Control Unit (ECU/Controller). This is the “ brain ” of the system, responsible for processing input signals (joystick, sensors), executing control logic (such as power limitation, automatic leveling), and outputting instructions to the proportional valve driver or directly driving the proportional valve.
A3501:Proportional Pressure Reducing Valve (Proportional Pressure Reducing Valve) or Proportional Flow Valve. It converts electrical signals into hydraulic signals (pressure or flow) forpilot controlof the displacement of the main spool to achieve stepless speed regulation and flexible control.
022D: This is usually theSensor (Sensor) model, which may be anAngle Sensor or aPressure Sensor, used to feedback the position of the actuator or the system pressure to form a closed - loop control and improve accuracy.

3. Typical Applications

Wheel loader: Control the lifting and lowering of the boom and the turning of the bucket.
Skid - steer loader/Small excavator: Achieve fine - tuned compound action control.
Telehandler: Control the extension and retraction of the boom and the lifting and lowering of the forks.
Agricultural machinery: Such as the hydraulic systems of silage harvesters and balers.

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Danfoss Sauer Danfoss MCV116 A3203 G3201 A3204 A3501 022D Electronic Control Module Proportional Val