In the process of using scotch yoke pneumatic actuator, it is easy to have operational risk in the production process because of its bad working environment. Today, Ruito's knitter will show you how to deal with the disconnection failure of the connecting parts in thescotch yoke pneumatic actuator.
In chemical automatic control system, pneumatic actuator and valve positioner are often used together in order to achieve accurate positioning of actuator. The positioner receives the output signal of the controller and generates the proportional output signal to control the pneumatic actuator. Because of the particularity of chemical production, the actuator will be disconnected from the positioner due to vibration. In order to learn the lessons from the accident, to predict and prevent the accident, and then to achieve the effect of pre-treatment, Zhongyuan Dahua Instrument Company has carried out a special inspection of the actuator connecting parts.

The special inspection of actuator connecting parts is to formulate special standards and rules. Specialized engineers and technicians are selected to inspect all actuator connecting parts in the responsible device area monthly according to the specified inspection contents. After the inspection is completed, the leaders check and accept the results of the inspection, formulate rectification plans and rectification deadlines for the problems detected, instruct the relevant responsible persons to rectify, and carry out rewards and punishments assessment for the personnel according to the relevant assessment criteria. Since the launching of the activities, the situation of disconnection between the actuator and the locator has not appeared again in Zhongyuan Dahua. The special checklist for actuator connection parts is shown in Table 1.

Above is a small arrangement of the scotch yoke pneumatic actuator and electrical components connection disconnection failure, the relevant staff should carry out the work of processing. For your reference only.