Actuators are devices that help workers in the pipeline to drive the valves. The power could be electric, air (pneumatic) or flow (hydraulic). Actuators have two main functions: linear and rotary. So, let's get into the common types of valve actuators. Manual Actuators These actuators, also known as manual actuators, usually require workers to run a wheel or lever. However, due to the high pressure inside the pipes, people usually dislike manual actuators because they are difficult to operate. However, manual actuators do have their advantages. For example, if you need a precise valve position, a manual actuator is the ideal option. Taval manual gate valve is widely used for oilfield manifolds . Pneumatic and Hydraulic Actuators Another frequent actuator is pneumatic, or air operated. However, users need to choose which they want, linear or rotary pneumatic? Pneumatic linear actuators use a compressor or a hand pump to move the piston throughout the pipe. On the oth...