Check valves are crucial components in various fluid control systems, preventing backflow and ensuring the unidirectional flow of fluids. Whether in industrial, commercial, or residential applications, these valves play a key role in maintaining system efficiency and safety. Among the many types available, three commonly used check valves are the pilot operated check valve, water pump check valve, and dual plate check valve. Each serves a distinct function, but all are integral to the proper functioning of fluid-based systems.