- Jun 04, 2018 -
Gate valve is used as a cut-off medium, the entire flow through the full open, at this time the pressure loss of medium operation is minimal. Gate valves are generally applicable to work conditions that do not require frequent opening and closing, and which keep the gate fully open or closed.
Not suitable for use as an adjustment or throttling. For the high-speed flow of the medium, the gate in the local opening conditions can cause the vibration of the gate, and vibration may damage the gate and the seat of the sealing surface, and throttling will make the gate under the media erosion. From the structural form, the main difference is the form of the sealing element used. According to the form of sealing elements, the gate valve is often divided into several different types, such as: wedge-type gate valve, parallel gate valve, parallel double gate gate valve, wedge-type double gate gate and so on. The most commonly used forms are wedge-type gate valves and parallel gate valves.