In the process of purchasing pneumatic ball valves, we all hope that the quality can be very good and really guaranteed, but some people do not know how to ensure the quality at all. They learn about the actual situation of various aspects in a targeted way, and have more consideration for specific quality aspects, This is also a very important thing for us, so I hope you can understand it from a comprehensive perspective in the process of making choices, and then you can get better results. So we need to pay attention to these aspects when anyone is doing.

The test proves that the pressure on the sealing surface is caused by the torque of the transmission device and the effect of the medium pressure on the valve plate when the pool is in the positive flow state (the medium flow direction is the same as the rotating direction of the butterfly plate). When the positive medium pressure increases, the tighter the compression between the inclined conical surface of the valve plate and the sealing surface of the valve seat, the better the sealing effect. In the reverse flow state, the sealing between the valve plate and the valve seat is pressed against the valve seat by the torque of the driving device. With the increase of the reverse medium pressure, when the unit positive pressure between the valve plate and the valve seat is less than the medium pressure, the deformation stored by the spring of the regulating ring after being loaded can compensate the tight pressure between the valve plate and the sealing surface of the valve seat for automatic compensation.