NEWS CENTER


Several Situations and Solutions of Pneumatic Butterfly Valve in Use


Release time:

2022-01-19

Wuxi Xinming automatic control valve industry to introducepneumatic butterfly valveSeveral situations and solutions that will be encountered in the use process.

Several Situations and Solutions of Pneumatic Butterfly Valve in Use

Wuxi Xinming automatic control valve industry to introducepneumatic butterfly valveSeveral situations and solutions that will be encountered in the use process.
Pneumatic butterfly valves use a circular butterfly plate that rotates with the valve stem to open and close. The pneumatic valve that realizes the operation is mainly used as a shut-off valve. Butterfly valves are increasingly used for low-pressure, large-diameter and medium-diameter pipes. The butterfly plate of the butterfly valve is installed along the radial direction of the pipeline. The butterfly plate starts to rotate around the axis in the cylindrical channel of the butterfly valve body, and the rotation angle is 0 ° to 90 °. When the rotation reaches 90 °, the valve is fully opened. Butterfly valve has the characteristics of small size, light weight and simple structure. In addition, it can be quickly opened and closed by rotating 90 °, easy to operate, and has outstanding fluid handling capabilities. When the butterfly valve is in the open position, the thickness of the butterfly plate is the resistance when the medium flows through the valve body. Because the pressure drop generated by the valve is not large, it has better flow control characteristics.
At present, pneumatic valves are mainly used in fluid pipelines. Its main function is to provide the ability to open and close each part of the valve body to achieve automatic adjustment and improve the performance of the valve itself. This is another advantage of pneumatic butterfly valves.
       pneumatic butterfly valveIt is the main device of pipe fittings at present. The butterfly valve is much better than the valves used in conventional liquid lines. The throttle valve connected to the pneumatic actuator can provide a better closing effect in the pipeline, and the process is automated, which can be said to be the main application of the current pneumatic throttle valve. The ability to achieve automatic adjustment in the pipeline is the main feature of current pneumatic valves. Unlike conventional valves, it is difficult to obtain, which shows the importance of pneumatic actuators.
After the automatic switch is switched to the manual state, the switch will not return to the automatic; due to the excessive force used by the on-site operator and the excessive clutch, the internal gear is stuck and cannot be automatically retracted. When pulling the clutch, turn the handwheel back and forth to release the internal turbine, so that the hand can automatically switch (when automatically switching the hand, the yellow clamping sleeve should be pulled).
The control cabinet sends a signal indicating that the valve is not working. After on-site observation, the pneumatic regulating butterfly valve is equipped with a solenoid valve under the premise of installing the positioner. The strong electrical interference of the solenoid valve reaches the signal output of the control cabinet, and the valve does not receive the signal. Not working properly. Remove the solenoid valve and remove the strong electric interference device. (Note: The function of the solenoid valve is to switch the valve. The function of the positioner is to control the opening of the valve through a 4 to 20 mA signal, so it is installed. If necessary, there is no need to install a solenoid valve. There is a positioner). The valve is working normally, but the feedback has been at 100 percent. This groove is known to the field operator. The line on the site is thick. Hardness is not very convenient. It caused the screw to fall and the wiring staff removed it directly. Tighten the long screws to tighten the module, causing a short circuit.
Above is the Xinming automatic control valve industry to introduce the relevant content.





 

气动蝶阀