Electric ball valves only need to rotate 90 degrees.

Electric ball valves can be tightly sealed with only 90 degrees of rotation and a small moment of rotation. Completely equal chamber of the valve body provides the medium with a very small resistance and a direct flow path. Generally, electric ball valves are suitable for direct opening and closing, but recently, electric ball valves have been programmed to save and control flow.
The main characteristics of electric ball valves are compact structure, easy operation and repair, suitable for water, solvents, acids and natural gas and other general working media, and also suitable for medium with poor working conditions, such as oxygen, hydrogen peroxide, methane and ethylene. The body of the electric ball valve can be either integral or combined.

Electric ball valves are evolved from Cock valves. It has the same 90-degree rotation lifting action, the difference is that the cock is a sphere, with a circular through-hole or passage through its axis. The share of sphere and passage should be as follows: when the ball rotates 90 degrees, all spheres should appear at the entrance and exit, and then cut off the activity.