Is a globe valve or a butterfly valve better for the circulating water outlet?
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In our systems, butterfly valves are generally used for the circulating water. To regulate a particular cooler, the outlet butterfly valve is adjusted, but the degree of precision in regulation provided by butterfly valves is not very high. On the other hand, globe valves offer more accurate regulation. Is it necessary to replace butterfly valves with globe valves?
The advantage of butterfly valves is their large flow area, which allows for high flow rates; they are typically used at the inlets and outlets of cooling water mains to reduce pressure losses, though they do not enable precise flow control. For specific coolers, the type is selected based on the cooling water flow rate: globe valves are used for low flow rates, while butterfly valves are used for high flow rates
What was said upstairs is absolutely correct. Butterfly valves are generally used, as high precision in flow regulation is not required.
I’ve learned that, in addition, the pipe diameter shouldn’t be too large; globe valves with a diameter of DN250 or more are rarely used – butterfly valves are generally preferred.
I’ve learned that, in addition, the pipe diameter shouldn’t be too large; globe valves with a diameter of DN250 or more are rarely used – butterfly valves are generally preferred.
I’ve learned that for large-diameter pipes, we generally use butterfly valves
When making decisions, the design of chemical processing equipment is often not determined by factors such as ease of use or simplicity of operation, but rather by economic considerations. If the process does not require high precision in regulating the flow of circulating water, then butterfly valves are sufficient. However, if the adjustment of the circulating water flow has a significant impact on the stability of the entire system and on product quality, then it is obvious that valves with precise control capabilities, such as globe valves or other types of high-performance control valves, are necessary. The decision of whether to use such valves or not should be made carefully by the person in charge
Butterfly valves are generally used for large pipe diameters, especially in pipelines such as cooling water where precise regulation is not required; of course, they are also used for large-diameter gas pipelines.
Globe valves certainly offer higher control precision than butterfly valves, but the main issue is cost, especially for large-diameter valves.
If temperature adjustment is needed, it’s recommended to use a control valve; otherwise, the operators will curse you. The water temperature changes constantly throughout the day