Large Diameter Electric Hard Seated Butterfly Valve is an electrically driven butterfly valve primarily used for controlling fluid flow. It features a simple structure, compact size, light weight, easy installation, and low operation torque with quick opening and closing, typically achieved through a 90° rotation. The hard seated butterfly valve's sealing surface is made of metal materials, offering high-temperature resistance, high-pressure resistance, and strong corrosion resistance, suitable for harsh working conditions.

Operating Principle

Large bore electric hard-seated butterfly valves are actuated by an electric actuator to rotate the butterfly plate, thereby opening and closing the valve. The electric actuator drives the butterfly plate rotation via a transmission device, and the valve opening can be controlled by adjusting the motor rotation angle, thus regulating the flow rate.

Structural Features

The hard-seated butterfly valve is designed with rationality, compact structure, small size, and light weight, making it easy to install and operate. The sealing surface is precision machined and ground to ensure low leakage rate even under high pressure differences. The clever wedge design and the unique three-way eccentric design eliminate friction transmission between the sealing surfaces, thereby extending the valve's service life.

Application Fields

Large diameter electric hard-seated butterfly valves are widely used in the oil, chemical, metallurgy, power, and water treatment industries, particularly in situations requiring high flow regulation and rapid shutdown, such as oil and gas transmission pipelines, urban water supply and drainage systems, and industrial cooling water systems. Their features of high temperature resistance, wear resistance, and excellent mechanical properties make them perform outstandingly in high-temperature, high-pressure, and corrosive medium environments.