The electric valve actuator has a long history, and many years of development have brought the valve industry into the automatic implementation mode. The electric valve actuators are indispensable for the development of domestic industry.
In the early years of China, imported valve electric devices were mainly introduced to optimize the domestic electric valve equipment, the improvement of quality and the lengthening of life. According to the fine differentiation of the market, the electric valve actuator has many varieties and classifications. The electric valve actuator has many products, in the structure characteristics, in the function classification, at the working temperature can be used as the valve product classification basis.
Among them, if the electric valve actuator is chosen to drive the way as a basis for classification. Then the electric valve actuators can be divided into automatic valves, power drive valves and manual valves. The automatic valve refers to the valve electric device that relies on the energy of the medium to make the valve actuate.