In the marine industry, butterfly valves are commonly found in systems such as ballast water management, cooling systems, and fuel systems. These valves are prized for their ability to withstand the corrosive environments found on ships, especially in applications involving seawater. They are also preferred for their relatively simple design, which means fewer parts to maintain and a lower chance of mechanical failure. The materials used in marine butterfly valves, such as stainless steel or corrosion-resistant alloys, ensure that the valve remains functional even after extended exposure to saltwater and other harsh conditions.

Proper maintenance is key to ensuring the long lifespan of a butterfly valve. Regular inspections should be conducted to check for any signs of wear on the disk or the seals, which could lead to leakage or reduced performance. In high-pressure or high-temperature systems, the materials of the valve and seals should be carefully chosen to ensure they can withstand the operating conditions. Over time, seals may need to be replaced, but the simplicity of the butterfly valve design makes this task relatively straightforward. The valve's ease of use and reliability make it an essential component in a variety of industrial and marine systems.