Electric Valve & Butterfly Valve Wiring Guide-MTD Actuator

I. Electric Valves:

1. Electric Valve: Electric control valves (can control opening degree, continuously adjustable) and electric valves (can only control on/off, cannot control opening degree). When connected to AC power, generally 3 wires: live wire, neutral wire, and ground wire.

2. Solenoid Valve: Intelligent switching valve cannot control opening degree. Power on to open, power off to automatically close and reset.

3. Electric Control Valve Wiring: 2 wires for power supply, 2 wires for opening degree control, 2 wires for opening degree feedback, totaling 6 wires.

4. Electric Valve Wiring: 3 wires for open/close control (1 for open, 1 for close, 1 common terminal), 3 wires for open/closed position feedback (1 for open position, 1 for closed position, 1 common terminal), totaling 6 wires. The open position and closed position feedback are passive contacts.

Air Conditioning Cooling Tower and Chiller Electric Valve Wiring Diagram (This electric valve cannot adjust opening degree).

Air Conditioning Chiller Collector and Divider Electric Control Valve Wiring Diagram (Voltage 220V/4-20mA)

II. Electric Butterfly Valves:

Electric butterfly valves are available in standard type and intelligent type.

Standard Type: When its motor is powered on, the valve opens or closes, depending on the motor’s forward or reverse rotation.

Intelligent Type: For example, AC380V type, after supplying AC380V, the motor does not move, but the internal control circuit board can work. When 4-20mA current is input, it performs corresponding actions. At 4mA it closes, at 20mA it opens. It also has 4-20mA analog feedback signal to reflect its valve opening degree.

Electric butterfly valves consist of an electric actuator and a butterfly valve. The electric actuator rotates 90 degrees and has two control modes: switching type and regulating type. The actuator rotation drives the opening and closing of the butterfly valve.

It has manual operation function, allowing manual operation to open/close the butterfly valve during power failure.

On/Off Type with Active Light Indicator Electric Butterfly Valve Wiring Diagram: Total of 5 wires. Terminals 1, 2, 3 are for control section; terminals 1, 4, 5 are for feedback section.

On/Off Type with Opening Degree Signal Feedback Electric Butterfly Valve Wiring Diagram: Terminals 1, 2, 3 are for control wiring section; terminals 4, 5, 6 are for feedback section, outputting 0-5K resistance value, which can be selected.

AC380V Three-Phase Power Electric Butterfly Valve Wiring Diagram

MTD-Actuator is dedicated to technical services for valves ranging from 1/8 inch to 4 inches and valve electric actuators in industrial automation applications, electric valve manufacturing and production, industrial automation small system customization, and foreign trade sales. If you encounter any problems with automated valve actuators, please feel free to contact MTD-Actuator‘s engineers and technical experts to help you solve them. Once connected, friends for life. We help you reduce costs and improve efficiency, ensuring peace of mind in usage.

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