What method is used to separate connected saddle tanks?

The valve method is employed to separate connected saddle tanks as it allows for controlled disengagement. This method involves closing the valves that connect the saddle tanks, effectively isolating them from one another. By doing so, it prevents the uncontrolled flow of fluids between the tanks, ensuring safety during the separation process. This technique is critical in managing liquids and preventing spills, especially in emergency scenarios.

Using the valve method ensures that both tanks can be separated without risking leaks or hazardous spills that could result from gravity feeds or pressure release methods. While check valves can prevent backflow in systems, they do not facilitate the purposeful separation of connected tanks and thus are not suitable for this specific operation.