Structure of the stop valve

The shut-off valve is mainly used to switch on or off the medium in the pipeline, and is generally not used to regulate the flow. The shut-off valve is suitable for pressure and temperature range, but it is generally used for medium and small diameter pipes.
The structure of the stop valve structure:
1. The center of the inlet and outlet of the shut-off valve are on the same line, and the fluid flows like an S-shaped sphere, so it is also called a spherical shut-off valve.
2. When the valve seat of the valve stem is lowered toward the bottom sealing surface, the medium stops flowing; when the valve stem rises, the medium flows from below to the upper flow path.
When the shut-off valve is installed, there is generally a direction requirement. The flow direction of the medium in the pipeline generally flows from the bottom to the top of the valve seat. This is what we often call "low-in and high-out". The purpose is to reduce the fluid resistance and make the opening effort. In the closed state, the valve stem and the packing culvert are not in contact with the medium, so that the valve stem and the packing culvert are not damaged or leaked.