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Difference Between Butterfly Valve And Gate Valve
- Клапан DELCO
Butterfly valves и задвижки are both common valves used in the field of fluid control. Butterfly valves and gate valves both serve to control fluids, but they have many distinct differences. In this article, Клапан DELCO introduces you to the differences between butterfly valves and gate valves.
Structural differences
The opening and closing member of butterfly valve is a disc-shaped butterfly plate, which is opened and closed by rotating around the valve axis. When the butterfly plate rotates 90°, the valve can be completely opened or closed. Due to the short opening and closing stroke of the butterfly valve, it is easy to realize automatic control, and widely used in systems that require rapid opening and closing.
Gate valve opening and closing parts for a perpendicular to the fluid direction of movement of the gate, usually can only be fully open or fully closed, is not suitable for regulating the flow. Its stroke is long, relatively slow operation, automation control is more difficult.
Different volume
Butterfly valve is small in size and compact in structure, suitable for installation in occasions with limited space. Its opening stroke is smaller, so it is more convenient to install and operate.
In contrast, gate valves have a larger volume, especially in large-diameter piping systems, the installation of gate valves requires more space.
Different sealing performance
Gate valves have less fluid resistance and better sealing performance, and are suitable for occasions with higher requirements for sealing. However, because the valve plate of the gate valve is at a perpendicular angle to the fluid flow direction, if the valve plate of the gate valve is not switched on and off, the flushing of the medium will cause the valve plate to chatter, which will lead to sealing damage. Therefore, the gate valve needs special attention to open and close in place.
Butterfly valve is a low-pressure valve, its sealing performance is relatively poor, more suitable for low-pressure system flow regulation and cut-off.
Different working conditions and media
Butterfly valve is suitable for a variety of working conditions, commonly used in furnace, gas, natural gas, liquefied petroleum gas, hot and cold air, chemical smelting, power generation, environmental protection and other engineering systems, used to transport a variety of corrosive and non-corrosive fluid media. Because the butterfly valve is easy to open and close, it is suitable for regulating and cutting off the flow.
And the gate valve is suitable for large caliber piping system, especially the need for tight closure of the occasion. Gate valve can be divided into low pressure, medium pressure and high pressure valves according to the pressure, its scope of application is narrower, but can withstand higher pressure.
Заключение
Butterfly valves and gate valves have their own advantages in structure and function. In the application of actual working conditions, should be based on the specific needs of the working conditions of reasonable choice.
If you have questions about valves or want to get a quote, please feel free to contact us, we will reply within 6 hours. Phone +86 159 8960 2972, WhatsApp +86 159 8960 2972 or email marketing [email protected].
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