Pneumatic Actuator, Directional Valve, Switch Box, and Butterfly Valve are preferred for controlling the flow of gas, air, and liquids in large-diameter pipelines. In these systems, a disc that can rotate around its axis allows the flow inside the line to be opened or closed. In addition, with the help of a pneumatic actuator, this movement is carried out automatically, providing the system with the ability for rapid response. The switch box integrated into the butterfly valve body transmits signals indicating whether the valve is in the open or closed position as feedback. This enables remote control and monitoring. This product group is offered by Unox with high quality, tailored to industrial requirements.

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How Are the Actuator Design and Force Values Determined?

Pneumatic actuators are manufactured with different force values according to the connection diameter. These force values are defined by UDA codes and are classified as follows:

UDA 040 = 9 Nm
UDA 052 = 25 Nm
UDA 063 = 50 Nm
UDA 083 = 94 Nm
UDA 092 = 135 Nm
UDA 105 = 270 Nm
UDA 125 = 400 Nm

Thanks to this structure, actuators can be selected according to the pipe diameter and flow pressure. The control type can be configured as on–off or proportional, depending on the requirement. This ensures maximum precision in fluid control. Detailed product drawings and installation information are available through the Unox Online platform.

Structural Features and Construction Details

The body structure is manufactured using aluminum extrusion technology, providing high corrosion resistance on both internal and external surfaces. Compact pistons are symmetrically mounted and easily adapt when the direction is changed. The pinion section offers installation flexibility between 45° and 90° and operates in harmony with the piston stroke at all angles. Rotational movements are precisely controlled using a special gear-cutting technique, ensuring quiet operation. Industrial-grade hard plastics are used for the bearing elements, minimizing the coefficient of friction. This supports the long-lasting and stable operation of the system.

Installation Compatibility and Standards Compliance

This product group is developed in accordance with ISI 5211, DIN 3337, and VDI/VDE 3845 NAMUR standards. This ensures full compatibility with solenoid valves, limit switches, and other control accessories. In addition, assembly and disassembly can be performed quickly. Similar structures are also offered with Electric Actuated Butterfly Valve models, ensuring system integrity.