What role do float valves play in vapor recovery systems?

Float valves play a crucial role in vapor recovery systems by managing liquid levels within tanks. Their primary function is to prevent overfilling, which is essential for both safety and environmental protection. When installed in vapor recovery systems, float valves automatically close when the liquid reaches a certain level, thus preventing any excess liquid from entering the tank. This not only avoids potential spills or leaks but also helps maintain the integrity of the vapor recovery system by ensuring that vapors can be adequately confined and collected.

By keeping liquid levels within designated limits, float valves contribute to the overall efficiency and effectiveness of the vapor recovery process. This is particularly important in preventing the release of volatile organic compounds (VOCs) into the atmosphere, which can occur if tanks are overfilled and liquid spills out during refueling operations. Therefore, the functionality of float valves is vital in supporting environmental compliance and the operational efficiency of fueling systems.