| 摘要 |
<p>Disclosed are a ball valve and a ball valve module. According to the present invention, the ball valve having a ball arranged inside a valve body to be rotated, a stem connected to the upper part of the ball, and connection pipes coupled to both ends of the valve body comprises: a ball support part arranged inside the lower part of the valve body to prevent the lower drooping of the ball; retainers arranged inside the upper and lower parts of the valve body while at least a part thereof has the same curvature as the outer surface curvature of the ball; and seat rings arranged in the upper and lower parts of the ball to support the retainers while being respectively connected to the ball and the connection pipes and having a locking structure between the seat rings and the retainers. According to the present invention, a part of the retainers is in contact with the ball support part and the connection pipes to maximally prevent the coupling position of the ball from being laterally moved due to external impact; thereby increasing the durability of the ball valve.</p> |
