Advantages of knife gate valve
1. Simple structure, convenient operation: the structure of knife gate valve is relatively simple, mainly composed of valve body, valve plate and transmission device. This simple structure makes the installation, maintenance and operation very convenient.
2. fast switching, flexible control: knife gate valve valve plate movement speed, can realize rapid opening and closing, very suitable for the need to frequently adjust the flow of occasions.
3. good sealing performance: knife gate valve sealing performance is excellent, mainly due to its metal or elastic material sealing gasket. These gaskets can effectively prevent media leakage and improve the operational efficiency of the equipment.
4. Strong abrasion resistance: the knife gate valve's knife plate and the sealing surface of the base are made of hard materials, so that it can adapt to high-speed flow, high viscosity and media with particles, to extend the service life of the valve.
5. Small size and light weight: Compared with other types of valves, knife gate valve has a smaller size and weight, which makes the installation space saving, and is also convenient for transportation and installation.
Disadvantages of knife gate valve
1. Shock sound and vibration when opening and closing: knife gate valves may produce a certain shock sound and vibration when opening and closing, which may have a certain impact on the surrounding equipment and pipelines.
2. Require large operating force and space: due to the structural characteristics of the knife gate valve, its opening and closing requires large force and space. This can be a problem in some narrow or complex environments.
3. Fluid characteristics are not superior: knife gate valves are relatively simple to control the fluid, and their fluid characteristics are not superior to other complex valves (such as control valves), which may easily cause media clogging and leakage.
4. Restricted scope of use: knife gate valves are suitable for a wide range of applications, but in some special working conditions (such as high temperature, high pressure, high viscosity, etc.), you may need to choose other more suitable valves.
