Pneumatic butterfly valve is convenient and quick to open, labor-saving, low fluid resistance, and frequent operation. Pneumatic butterfly valve is relatively simple in structure, small in size and light in weight. If the equipment used needs to transport mud and the amount of liquid accumulation in the pipeline is small, there are two screws on the left and right of the pneumatic butterfly valve." This means that the model of the pneumatic butterfly valve is GT type or AW type, and its internal structure is divided into left and right pistons and cylinders. There are limit screws for both sections, each controlling a piston. Then how to rotate and control the bolts on both sides.
Open position: First open the valve pneumatically. If it does not open, it must be too early to limit the screw. At this time, loosen the two limit screws on the left and right, pay attention to each adjustment not too big, adjust slightly until the valve is fully opened, and then fix it.
Closed position: When the valve is closed, if it is not closed in place, the screw limit is too early. At this time, tighten the two limiting screws on the left and right. Be careful not to adjust too much each time. Make slight adjustments until the valve is completely closed before fixing.
Note: It is better to adjust the two pistons at the same time so that the left and right strokes are the same, so as to better ensure the same degree of engagement between the cylinder piston and the output shaft, that is, the degree of fit.
