Non-standard Spring Return Pneumatic Actuator

Non-standard Spring Return Pneumatic Actuator

ZH single acting single piston (inner pull rod) straight stroke pneumatic actuator

The ZH series pneumatic actuator, as an efficient and stable fluid control device, plays a pivotal role in industrial automation with its unique operating principles and wide application scope. This product operates on purified compressed air at 0.3~0.7MPa (gauge pressure), providing a power source that is safe, reliable, and readily available, enabling the actuator to operate stably in various industrial environments.

During operation, the ZH series pneumatic actuator drives the valve gate (including wedge gate valves, flat gate valves, knife gate valves, globe valves, etc.) in a linear motion perpendicular to the fluid flow by pushing the piston. This motion ensures the precision and stability of the valve during adjustment, opening, and closing, thereby effectively controlling the pipeline flow.

With its outstanding performance and wide applicability, the ZH pneumatic actuator has been widely used in industries such as petroleum, chemical, metallurgy, and power generation. In these industries, it serves as a crucial pipeline flow control device for transporting gases and liquid media. Whether for large-scale industrial production processes or fine-tuned process controls, the ZH series pneumatic actuator delivers reliable and stable performance, meeting diverse industrial requirements.

In our future development, we will continue to focus on product optimization and innovation to meet evolving market demands, contributing further to industrial advancement.

For the Failure Close(FC) - Side Mount Manual Actuator (SM Series), the manual operation process should follow the steps below:

①After connecting the valve to the pneumatic actuator, manual operation is the first step. Firstly, close the air supply to ensure safety. Then, unscrew the black locating screw on the clutch to prepare for switching between manual and pneumatic modes. Occasionally, the handle may jam when switching from "Pneumatic" to "Manual" position, usually due to improper gear engagement. In this case, rotate the handwheel back and forth until the handle smoothly switches to the "Manual" position. After switching, be sure to tighten the black locating screw to ensure the stability of manual operation.

②Once in manual control mode, use the handwheel to control the valve's open/close status.

- Turn the handwheel counterclockwise to open the valve (OPEN).

- Turn the handwheel clockwise to close the valve (CLOSE).

During this process, carefully verify that the manual actuator's working status matches the actual valve status to prevent misoperations.

③After confirming error-free manual operation, prepare for pneumatic operation. Firstly, rotate the handwheel clockwise to fully close the valve, ensuring the toggle nut is not under stress, providing a solid foundation for pneumatic operation. Then, unscrew the black locating screw on the clutch again to switch the handle from the "Manual" to the "Pneumatic" position. Similarly, during the switching process, if the handle jams, repeat rotating the handwheel until the handle smoothly switches to the "Pneumatic" position. After switching, tighten the black locating screw again to ensure the stability of pneumatic operation. Finally, turn on the air supply, and the valve enters pneumatic control mode.

Throughout the entire operation process, strictly follow the steps to ensure accuracy and safety. Additionally, regularly inspect and maintain the actuator to ensure its long-term stable operation.

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