What is the difference between butterfly valve and gate valve
Nov 23,2021 Posted by Bundor
The difference in appearance and structure of butterfly valves and gate valves is destined to have different functions and uses.
Question: Hello Bundor Valve, what is the difference between butterfly valve and gate valve? Just the appearance is different, is there any difference in use?
Answer: The difference in appearance and structure of butterfly valves and gate valves is destined to have different functions and uses.
The butterfly valve not only has the function of cut-off, but also has the function of adjustment. The butterfly valve opens and closes quickly and can be opened and closed frequently. It is especially suitable for occasions that require quick opening or shutting.
Compared with gate valves, butterfly valves are small in size, light in weight and cheap in price. In some working conditions where installation space is limited, butterfly valves with wafer connection can be selected, which saves more space.
Therefore, butterfly valves are more suitable for making large diameters, and butterfly valves above DN300 are used more frequently.
Butterfly valves can be used to transport pipelines containing small particles and unclean media; except for knife gate valves, all gate valves can only be used in pure water or gas media pipelines.
The pressure and temperature range of the butterfly valve is relatively small, and the sealing performance is not as good as that of the gate valve. Gate valves are more suitable for pipelines that have high requirements for tightness.
In many working conditions, butterfly valves gradually replace other types of valves and become the first choice of many users.
To sum up, the main difference between butterfly valve and gate valve is that the butterfly valve has an adjustment function, while the gate valve has no adjustment function.