What is used to prevent the cross connection of a cargo hose to a vapor manifold?

The use of a special flange is crucial in preventing cross connections between cargo hoses and vapor manifolds. Special flanges are designed with specific dimensions and configurations that differ significantly from standard components, thereby reducing the likelihood of mismatched connections. This ensures that only compatible hoses can connect to the intended manifold, which is particularly important in preventing hazardous situations that can arise from the transfer of different substances, including the risk of fire or explosion due to vapor release.

Other connection types, such as standard flanges, universal couplings, or quick disconnects, do not provide the same level of specificity and security in preventing cross connections. Standard flanges may allow for compatibility with a wider variety of hoses and systems, which can increase the risk of improper connections. Universal couplings are designed for flexibility and may not include the safety features required for hazardous materials. Quick disconnects, while efficient, may similarly lack the necessary design to ensure that only intended fluid types are transferred.