Flexible connectors of the proper length must be selected, and should be installed so that they are as close as practical to a straight line; they should never be used in place of pipe fittings. True or False?

• A. True
• B. False
• C. Not specified
• D. Sometimes true

Answer: (A)

Flexible connectors are meant to absorb minor movement and fit the distance between the gas supply and an appliance, not to replace proper pipe fittings. Choose a connector that matches the distance and install it so the run is as straight as possible. Keeping it nearly straight minimizes bending stress on the joints, reduces wear on the connector, and lowers the risk of leaks. They should not be used to make up for poor pipe layout or to handle changes in direction—that’s what rigid pipe fittings are for. Use the flexible connector only for the final connection where permitted and within its rated length, with proper support to prevent kinking or sagging.