Beginner's Guide to Understanding the Working Principle of Pneumatic Butterfly Valves

Working principle of sanitary pneumatic butterfly valve

The working principle of sanitary pneumatic butterfly valve can be explained in detail through the following aspects:

Operation method:

    Sanitary pneumatic butterfly valve can be operated remotely through the pneumatic head or manually through the handle. This means that users can choose automatic control or manual control1 according to their needs.

Actuator type:

    There are three standard types of actuators: normally closed (NC), normally open (NO) and air/air (A/A). These types determine the actuator's default state1 when there is no power or air supply.

Movement conversion:

    The actuator converts the axial movement of a piston into a 90° rotational movement of the valve shaft. This conversion allows the butterfly valve to quickly switch between fully open and fully closed.

Working principle of pneumatic actuator:

    The working principle of the pneumatic butterfly valve is to convert air pressure energy into mechanical energy through a pneumatic actuator to drive the valve to open, close and adjust control. The cylinder is the core component of the actuator, which pushes the piston through air pressure to drive the movement of the valve.

Valve positioner:

    The valve positioner and the pneumatic butterfly valve form a complete structure, and its main function is to proportionally amplify and adjust the control signal to ensure precise operation of the valve.

Installment and Debugging:

    Pneumatic butterfly valves are small, lightweight, and easy to disassemble and maintain. After installation is completed, installation and debugging should be carried out to ensure that the valve starts and closes smoothly and without leakage.

    To sum up, the sanitary pneumatic butterfly valve achieves rapid and precise control of fluids through its pneumatic actuator, solenoid valve and other components. Whether it is manual or automatic operation, the accuracy and efficiency of fluid control can be ensured.