How to Install Thread Ball Valves
The ball valve could be in vertical or horizontal pipe runs. They are bi-directional therefore flow direction is not critical; In principle, the ball valve installation has no direction. Still, in the actual building, to prevent excessive leakage between the valve body and the valve cover, the ball valve body is usually connected to the tank’s direction or the material. The best practice is to set up the valve handle to point in the direction of flow whenever possible.