How to wire the pneumatic control valve? Is it connected to the PLC module?

Should be installed on a horizontal pipeline, and perpendicular to the upper and lower pipelines; Not connected to PLC module.

The regulating valve should be installed on the horizontal pipeline, vertical to the pipeline from top to bottom, and supported under the valve to ensure stability and reliability. For special occasions, when the control valve needs to be installed horizontally on the vertical pipeline, it should also be supported. During installation, it is necessary to avoid bringing extra pressure to the control valve. When the diameter of the regulating valve is different from that of the process pipeline, the reducer should be used for connection.

When installing a small-caliber regulating valve, it can be connected by thread. The fluid direction arrow on the valve body should be consistent with the fluid direction. Set the bypass pipe. The purpose is to facilitate switching or manual operation, and the control valve can be overhauled without stopping.

Extended data:

Requirements for use of pneumatic control valve:

1. For valves whose working pressure is greater than 1.0 MPa and the main pipeline is cut off, strength and rigorous performance tests should be conducted before installation, and they can be used only after passing the test.

2. During the leak test, the test pressure is 1. 1 times the nominal pressure; The test pressure shall meet the requirements of GB 50243 standard for the duration of the test, and it is qualified that there is no leakage on the sealing surface of the disc.

3. The working pressure of pneumatic valve should be equal to or higher than the pressure of pipeline. Under the premise of not affecting the price, the working pressure that the valve can bear should be greater than the actual working pressure of the pipeline; When the pneumatic valve is closed, either side should be able to withstand the valve working pressure of 1. 1 times without leakage; When the valve is open, the valve body should be able to withstand twice the working pressure of the valve.

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