What is the pipe used to connect two separate piping systems on a tank vessel?

The pipe used to connect two separate piping systems on a tank vessel is called a crossover. This term specifically refers to a configuration that allows for the transfer or flow between two different systems, often used in scenarios where it is necessary for liquids to be moved or redirected from one tank to another or between different parts of the vessel. A crossover is designed to facilitate this process while ensuring that the integrity of each system is maintained.

In contrast, other terms like connector, interceptor, and union do not accurately describe this particular functionality. A connector typically refers to a generic device or part that links two pieces of equipment but does not specifically imply a crossover function. An interceptor is usually related to systems designed to separate or divert certain substances, primarily for environmental purposes, and is not meant for facilitating connections between two systems. A union commonly denotes a fitting that allows for the connection and disconnection of pipe sections but does not specifically emphasize the purpose of connecting two distinct piping systems for crossover. Therefore, the use of the term crossover effectively captures the unique application required in a marine environment involving tank vessels.