What is a key aspect of gate valve maintenance?

Refacing leaky valve seats is a key aspect of gate valve maintenance because it directly addresses a common issue that can lead to valve failure or leaks. The valve seat is the part of the valve that makes contact with the disc when the valve is closed, creating a seal to prevent flow. Over time, wear and tear, as well as corrosion, can cause these seats to become uneven or damaged, which can result in leaks when the valve is not fully closed.

Refacing the seats restores the smooth surface necessary for a proper seal. This process extends the life of the valve by ensuring it can function correctly, preventing undesirable leaks and potential damage within the system. Regular maintenance, such as refacing valve seats, is critical for ensuring the reliability and efficiency of a wastewater treatment system.

Other options, like replacing the entire valve, while sometimes necessary, are more drastic measures and are typically not common maintenance tasks. Painting the exterior might help with corrosion resistance but does nothing for the functional aspects of the valve itself. Installing new piping is unrelated to the valve maintenance process and focuses more on infrastructure rather than maintaining existing components.