An electric butterfly valve is an automated valve that uses an electric actuator to rotate the butterfly plate to achieve fluid on-off or regulation.

Electric Butterfly Valve = Butterfly Valve + Electric Actuator.

1. Valve Body Part (Butterfly Valve): A circular disc-shaped butterfly plate is installed along the diameter of the pipeline.

   Working Principle: The valve stem drives the butterfly plate to rotate approximately 0° to 90° around its own axis within the valve seat.

2. Actuator Part (Electric Actuator): This is a device that integrates a motor, gearbox, and control circuit.

   Working Principle: Through multi-stage gear reduction, the high speed and low torque of the motor are converted into low speed and high torque of the output shaft.

• Compact structure: More compact than gate valves and ball valves, lighter in weight, and occupies less space.
• Precise control: Electric actuators can achieve precise angle control and status feedback.
• No air source required: No need for a compressed air system, flexible configuration.
• Economical and practical: Relatively low manufacturing cost and high cost performance.

• HVAC (Heating, Ventilation and Air Conditioning): On-off control and flow regulation of hot and cold water, cooling water systems, and air volume regulation.
• Water supply and sewage treatment: Pump switching, flow distribution, dosing regulation.
• Food : Sanitary butterfly valves for CIP/SIP systems and material pipelines.
• Chemical and power: Circulating water systems, flue gas desulfurization, regulation and shut-off of various process pipelines.
• Shipbuilding: Ballast water, bilge water, fire protection systems.

• Choose Electric Butterfly Valve: When flow regulation is needed, or for large diameters (DN>150), cost-sensitive applications, and situations where a certain leakage rate is acceptable for shut-off.
• Choose Electric Ball Valve: For situations requiring zero leakage, tight shut-off, quick action, and mostly for medium and small diameters.

Electric butterfly valves are the "versatile all-rounders" and "champions in cost performance" in the field of automation control. They perfectly combine the excellent regulating performance, low cost and compact structure of butterfly valves with the remote control and precise positioning capabilities of electric actuators. In the vast majority of situations where flow regulation or large-diameter automation control is required, electric butterfly valves are the preferred and most economical solution. They are indispensable key equipment for achieving industrial process automation, especially in water treatment, HVAC, chemical and other industries.