What kind of connectors can be installed at the base of dispensers?

Flexible connectors are designed to accommodate movement, vibrations, and thermal expansion in underground storage tank (UST) systems. Their use at the base of dispensers is critical because they provide a reliable means to connect the underground piping to the dispenser while allowing for necessary flexibility. This flexibility helps to prevent damage to the piping system caused by ground movement or dispenser shifting.

In addition, flexible connectors can help to minimize the risk of leaks, which is essential for maintaining environmental safety and compliance with regulatory requirements. Proper installation of these connectors ensures a secure fit that can adjust to slight changes in alignment, making them the preferred choice for these types of applications.

The other options, while they might be utilized in various piping systems, do not offer the same advantages of flexibility or adaptability needed for the dynamic environment around dispensers.