The gate valve, also called the gate valve, is a widely used valve. Its closing principle is that the sealing surface of the ram and the sealing surface of the seat are highly smooth and flat, and they are fitted to each other to prevent the medium from flowing through, and rely on the shape of the top mold, the spring or the ram to enhance the sealing effect. It mainly acts as a cut-off in the pipeline.
Its advantages are: low fluid resistance, easy to open and close, can be used in the case of two-way flow of the medium, no directionality, the sealing surface is not easy to erode when fully open, the structure length is short, not only suitable for small valves, but also suitable for doing Large valve.
The gate valve is divided into two types according to the stem thread. One is the rod type and the other is the dark rod type.
According to the structure of the gate, there are also two types, one is parallel and the other is mode.
Previous: Shut-off valve
Next: Various valves