The main function of the ball valve is to quickly switch the fluid. Because the handle is rotated ninety degrees to achieve the full effect, it is also called "quick opening." Because the switch is not easy to accurately adjust the control, it is not suitable for flow control. Ball valve is used with a circular channel for the opening and closing of the ball, the sphere with the valve stem to open and close the valve action. The opening and closing of the ball valve is a perforated ball, rotating perpendicular to the axis of the channel, so as to achieve the purpose of opening and closing channels. Ball valve is mainly used to open and close the pipeline and equipment media purposes. The main advantages of the ball valve are as follows: For regular operation, quick opening and closing, light. Small fluid resistance 2. Simple structure, relatively small size, light weight, easy maintenance. 3. Good sealing performance 4. Unrestricted by the installation direction, the flow of the medium can be arbitrary. 5. No vibration, noise. The main shortcomings of the ball valve are as follows: According to the structure of the ball valve can be divided into: floating ball valve, fixed ball valve, ball valve and flexible ball valve; according to the channel can be divided into straight, angle and three-way, three- T-shaped and L-shaped two. By connecting workers can be divided into threaded connection, flange connection and welding three. Ball valve installation and maintenance should note the following: 1. To leave the valve handle rotation position 2. Can not be used for throttling. 3 with the ball valve drive mechanism should be upright installation.
Tongyun Pipe Industry Co., Ltd , http://www.lcsteelpipes.com