How to switch and adjust the pneumatic metal seal butterfly valve

The pneumatic metal seal butterfly valve is composed of two parts of the pneumatic actuator and the metal seal butterfly valve, which is based on compressed air as the power source, the cylinder as the actuator, and the pneumatic accessories such as the positioner, the solenoid valve and the positioning valve to drive the valve, to achieve the valve switching quantity or proportional adjustment, and to receive the control signal of the industrial automation control system to adjust the flow of the pipeline medium.

Before starting to adjust the pneumatic metal seal butterfly valve, check whether the pneumatic positioner is installed. First, manually adjust the cylinder, fully open or fully close the valve, and check whether the cylinder stroke is correct. Then open the air source, check whether the cylinder can work normally, and then adjust the positioner to adjust the switch limit of the butterfly valve to the correct position.

The methods to speed up the switching speed of the pneumatic metal sealed butterfly valve are: First, adjust the air source pressure. The opening and closing speed of the butterfly valve is adjusted by installing a positioner to control the flow rate of the medium in the pipeline. Secondly, install a quick exhaust valve.

The switch adjustment of the pneumatic metal seal butterfly valve should be adjusted according to the valve performance. If it is a switch type pneumatic butterfly valve, it is only necessary to debug the butterfly plate of the butterfly valve to the correct position before installing the pneumatic actuator, and install the limit switch and solenoid valve and other accessories to test the effect of the air supply switch; If it is an adjustable pneumatic butterfly valve, it needs to be combined with the analog signal of the control cabinet to set to the corresponding switching Angle; If it is an intelligent pneumatic butterfly valve, it is also necessary to increase the PLC part, and program the control cabinet to visualize the results.