What is a disadvantage of working with butterfly valves?

Working with butterfly valves, a common type of valve used in various systems, has the disadvantage of being prone to improper seating. This issue can arise due to the design of the valve, where the disc rotates to control flow. If the valve is not installed correctly or if there is wear and tear on the sealing surfaces over time, the disc may not seat properly against the body of the valve. This can lead to leaks, reduced efficiency, and ultimately compromise the effectiveness of the system it is employed in. Ensuring that the valve seals properly is crucial to maintaining optimal performance.

Other considerations such as frequency of replacement, maintenance costs, and cargo capacity do not specifically tie into the characteristics of butterfly valves. While these factors can affect overall system efficiency, the seating issue is a notably critical point specifically associated with butterfly valve operation, making it a key disadvantage in their application.