What is an electric ball valve?
An electric ball valve is an automated valve device that uses an electric actuator to control the opening and closing of a valve core. It is widely used in fluid control systems in the industrial sector. It primarily consists of two parts: an electric actuator and a ball valve. The ball valve includes a valve body, a ball, a valve seat, and a sealing ring. The ball has a circular through-hole. Rotating the ball opens and closes the valve, controlling the flow of fluid. The electric actuator converts electrical energy into mechanical energy through a motor, a reducer, and other devices, driving the ball's rotation.
How does an electric ball valve work?
When the electric actuator receives a control signal, the motor starts. The reducer reduces the motor's high speed to a low speed suitable for ball valve operation. This torque is then transmitted to the ball, causing it to rotate about the valve stem axis. When the ball's through-hole aligns with the pipe axis, the valve is open, allowing fluid to flow smoothly. When the ball rotates 90°, with its through-hole perpendicular to the pipe axis, the valve is closed, preventing fluid from passing.
What are the classifications of electric ball valves?
By connection method
They are classified into electric flange ball valves, electric wafer ball valves, electric welded ball valves, and electric threaded ball valves.
By sealing type
They are classified into soft-seal electric ball valves and hard-seal electric ball valves. The hard-seal V-type ball valve, with its strong shear force between the V-shaped ball core and the metal valve seat with hard alloy overlay, is particularly suitable for media containing fibers and fine solid particles.