Pneumatic actuator compared to the electric actuator has any advantage

pneumatic actuators is refers to the execution of the open-close or is driven by air pressure regulating valve device, also called pneumatic actuators or pneumatic device, but generally popular called pneumatic head. Pneumatic actuators actuators and regulating mechanism is a unified whole, the actuator diaphragm, piston, fork type and gear rack type. The piston stroke length, suitable for a greater thrust required; The diaphragm stroke is small, can only be direct drive valve stem. Fork type pneumatic instruments have torque, the space is little, torque curve more accord with the valve torque curve etc, but because is not very beautiful, are used in high torque on the valve. The gear rack type pneumatic actuators for has a simple structure, smooth and reliable action and safety explosion protection and other characteristics, in power plant, chemical industry, oil refining, such as the safety requirements of high production process have a wide range of applications. Many people will doubt actuator is to choose good or choose electric actuators, pneumatic actuators in fact, from the aspects of technical performance, pneumatic actuator compared to the advantage of electric actuators mainly includes the following aspects: ( ） Load is big, can adapt to the application of high torque output. （ ） Quick, quick reaction. （ ） Work, good adaptability to the environment, especially in the inflammable, explosive, more dust, strong magnetic, bad work environment, such as radiation and vibration than hydraulic, electronics, electrical control is superior. （ ） Travel by blocked or stem live when the motor is easy damaged.