How to distinguish the direction of the ball valve? Does the ball valve have positive and negative directions?
Dec 28,2021 Posted by Bundor
Ball valve is a common valve type. Many friends like to compare ball valves with butterfly valves. Some butterfly valves are distinguished by direction during installation. There are arrows on the body of some one-way butterfly valves to help us identify the installation direction. . So how to distinguish the direction of the ball valve? Does the ball valve have positive and negative directions? In this article, BAND valve will introduce you.
The definition of a ball valve on Baidu Encyclopedia is: a ball valve is a valve in which the opening and closing parts (sphere) are driven by the valve stem and rotate around the axis of the ball valve. The ball valve can be used for fluid adjustment and control. Among them, the hard-sealed V-shaped ball valve has a strong shear force between the V-shaped core and the metal seat of the hard alloy surfacing. It is especially suitable for fibers and small solid particles. And other media. The multi-way ball valve on the pipeline can not only flexibly control the confluence, divergence, and flow direction switching of the medium, but also close any channel to connect the other two channels. This type of valve should generally be installed horizontally in the pipeline.
There is no direction in the installation of the ball valve, and there is no arrow on the valve body to indicate the direction. When the ball valve is fully opened, the fluid medium can flow in both directions, and there is no distinction between positive and negative directions. The basis for judging the switch direction of the ball valve is: look at the position of the manual ball valve handle. When the handle direction is parallel to the valve body direction, the ball valve is fully open; when the handle direction is perpendicular to the valve body, the ball valve is closed.
There is no direction distinction for ball valves. This is only in theory. In the actual installation process, we have to consider some factors.
Such as the installation environment, the installation of the ball valve, especially the manual ball valve, must be easy for people to operate, such as the pipe near the root of the wall, and the handle or hand wheel must face outward.
In addition, if the ball valve is installed in combination with other valves, the direction of other valves must be considered. For example, if a one-way valve is installed in combination with a ball valve, the ball valve can only have one direction.