The actuator and adjustment mechanism of the pneumatic actuator are a unified whole, and the actuators include membrane type, piston type, fork type and rack and pinion type. The piston type has a long stroke and is suitable for occasions requiring large thrust; while the diaphragm type has a small stroke and can only directly drive the valve stem. The fork type pneumatic actuator has the characteristics of large torque, small space, and the torque curve is more in line with the torque curve of the valve, but it is not very beautiful; it is often used on valves with high torque. The rack-and-pinion pneumatic actuator has the advantages of simple structure, stable and reliable action, and safety and explosion-proof. It is widely used in power plants, chemical industry, oil refining and other production processes with high safety requirements.
Pneumatic actuators are actuators that use air pressure to drive open, close or adjust valves, also known as pneumatic actuators or pneumatic devices, but they are generally called pneumatic heads. Zhejiang Shuangzhong Automatic Control Valve Co., Ltd. has various technical requirements for pneumatic heads,
