O-type ball valve structure:
The valve body of the O-type ball valve is equipped with a ball with a middle through hole. The ball has a through hole with a diameter equal to the diameter of the pipe. The ball can rotate in the sealing seat. There is a ring-shaped elastic body on both sides of the pipeline direction to achieve sealing. By rotating the ball 90°, the direction of the through hole can be changed, thereby realizing the opening and closing of the ball valve.
The valve core (ball) of the O-type ball valve is spherical. From a structural point of view, the ball valve seat is embedded in the valve seat on the side of the valve body when sealing. The relative moving parts are all made of self-lubricating materials with extremely small friction coefficients, so the operating torque is small. In addition, the long-term sealing of the sealing grease makes the operation more flexible. It is generally used for two-position adjustment, and the flow characteristic is fast opening.
O-type ball valve principle:
When the O-type ball valve is fully opened, the two sides are unobstructed and form a straight pipe channel. It is bidirectionally sealed and has the best "self-cleaning" performance. It is suitable for two-position cut-off occasions with particularly unclean and fiber-containing media. The ball core always produces friction with the valve during the process of opening and closing the valve. At the same time, the seal between the valve core and the valve seat is achieved by the pre-tightening sealing force of the valve seat pressing against the ball core. However, due to the excellent mechanical and physical properties of the soft sealing valve seat, its sealing performance is particularly good.