The stop valve is a hard seal, which can adjust the flow rate and has strong durability
The ball valve is plastic sealed, fully open and fully closed, and cannot be adjusted. Most of the ball valves on the market are iron balls, which are easy to rust after a long time of use.
Shut-off valve: refers to the valve whose closing part (disc) moves along the center line of the valve seat. According to the shape of the valve disc, the change of the valve seat port is proportional to the valve disc stroke. Since the opening or closing stroke of the valve stem of this type of valve is relatively short, and it has a very reliable shut-off function, and because the change of the valve seat port is in direct proportion to the stroke of the valve disc, it is very suitable for flow adjustment. Therefore, this type of valve is very suitable for use as a shut-off or adjustment and throttling.
Ball valve: A ball valve is a sphere with a circular through hole as an opening and closing part. The sphere rotates with the valve stem to realize the opening and closing action. The ball valve evolved from the plug valve, also known as the spherical plug valve. The opening and closing part of the ball valve is used as a sphere, and the sphere is rotated 90 degrees around the axis of the valve stem to achieve the purpose of opening and closing.
