What is the maximum overall length for flexible metallic connectors used with liquid or vapor piping on stationary containers of 2000 gallon w.c. or less?

The maximum overall length for flexible metallic connectors used with liquid or vapor piping on stationary containers of 2000 gallon water capacity or less is defined to be 5 feet. This limit is put in place to ensure safety and effectiveness in the connection between the stationary container and the piping system.

A shorter length for flexible connectors is preferred because it helps minimize the potential for leaks and ensures secure connections under various conditions. Flexible connectors facilitate movement and vibration but can also present risks if they are too long, as increased length can lead to additional stress on the joints and potential failure points. By limiting the length to 5 feet, safety standards help maintain integrity in the propane delivery system while allowing some flexibility for installation needs.