What happens to screw-in cartridge valves if they wear out?

When screw-in cartridge valves wear out, they are typically replaced rather than being repaired or reused. These valves are designed for specific applications, and over time, they can experience wear and tear due to the high pressures and flows involved in hydraulic systems. When they fail, the most effective solution is to replace the cartridge with a new one to ensure operational reliability and the desired level of performance. While building and maintaining hydraulic systems often allows for repairs or rebuilding in certain scenarios, the nature of screw-in cartridge valves and their construction makes replacement the most practical option once they reach the end of their service life.