The oil and gas recovery valve is strategically positioned on the oil and gas recovery pipeline located along the side of the carrier tank. This valve utilizes a free-floating design, which allows for flexibility and adaptability during operation. When the tanker is engaged in loading or unloading operations, the oil and gas recycling tube joint is seamlessly coupled with the oil and gas recovery joint valve groove, and the improvement valve (in this context, likely referring to the oil and gas recovery valve itself) is activated.

Once the loading or unloading process is complete, the valve remains closed, ensuring that dust, debris, and other unwanted particles are prevented from entering the system. This closure mechanism not only maintains the cleanliness and integrity of the valve but also helps to prolong its service life and prevent potential malfunctions caused by contaminants.

In summary, the oil and gas recovery valve, with its free-floating design and precise coupling mechanism, effectively manages the flow of oil and gas during tanker operations while safeguarding against external contamination.