Knife gate valve working principle
Release time:
2024-05-13
Knife gate valve working principle
Knife gate valve is a special type of valve, widely used in fluid control systems, especially in the need for frequent switching, regulating flow and stopping the flow of fluid occasions. Its core working principle combines the basic function of the valve and the unique structural characteristics of the gate valve.
First, the basic structure
Knife gate valve is mainly composed of valve body, valve seat, gate plate (knife plate), sealing structure and drive device. Among them, the gate plate is knife-shaped, with excellent cut off the fluid function.
Second, the working principle
1. opening process: when the driver applies force, the gate will move away from the valve seat, making the fluid channel open and the fluid can pass through. 2. closing process: the drive device reverses the force, the gate will move away from the valve seat, making the fluid channel open and the fluid can pass through.
2. Closing process: when the driver applies force in the opposite direction, the gate will be closed, and the knife structure can effectively block the fluid channel, preventing the fluid from passing through.
3. sealing performance: in the closed state, knife gate valve through its special sealing structure to achieve good sealing performance, to ensure that the fluid will not leak.
Third, the characteristics
Knife gate valve is known for its simple structure, easy operation, low fluid resistance and good cutting performance. Especially in solid particles, powders and other media, knife gate valve gate can effectively cut off the medium to prevent the flow of media.
Application
Widely used in petroleum, chemical, electric power, metallurgy, water treatment and other fields, especially in the need to accurately control fluid flow or the need for frequent switching occasions, knife gate valves play an important role.
V. Summary
Knife gate valve through the drive device to drive the gate in the valve seat to do open or close action, so as to realize the control of fluid. Its structure is simple, easy to operate, with good fluid control performance and sealing performance. It can operate stably in a variety of media and environments, and is an indispensable fluid control equipment in the industrial field.
Please note that knife gate valves produced by different manufacturers may differ, and the specific working principle and operation may be different. In actual application, it is necessary to operate and maintain according to the instruction manual of the equipment.
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