The oil and gas recovery valve is a crucial component installed on the vents or covers of carrier tankers or positioned above tanks. Its primary function is to prevent the leakage of oil and gas that may volatilize during the loading and unloading process of the oil tanker. By capturing these emissions and directing them back into the system for internal reuse, the recovery valve contributes to environmental protection and resource conservation.

During the operation of loading and unloading oil products, the pneumatic controller activates the improvement valve (presumably a reference to the oil and gas recovery valve itself or a related valve in the system). This allows the rapid flow of oil and gas during these processes, facilitating efficient recycling and ensuring that pressure within the tanks remains balanced. The valve also serves to effectively seal the system during transportation, preventing any unwanted emissions or leaks that could occur while the tanker is in transit.

In summary, the oil and gas recovery valve plays a vital role in ensuring the safe, efficient, and environmentally responsible handling of oil products during tanker operations.