What materials are commonly used for fuel oil piping?

The use of steel, fiberglass, and certain types of plastic approved for oil service in fuel oil piping is favored due to their compatibility with the characteristics of fuel oil. Steel is renowned for its strength and durability, making it an excellent choice for high-pressure systems. Fiberglass, on the other hand, offers resistance to corrosion and is lightweight, which can be beneficial in certain applications where metal pipes may be prone to reacting with the oil or degrading over time.

Certain types of plastic, when approved for oil service, provide flexibility and resistance to chemical attack, making them suitable alternatives in specific environments where metal might not be ideal. These materials collectively ensure safe, reliable, and long-lasting fuel oil transportation, complying with industry standards and regulations designed to prevent leaks and spills.

Other materials listed in the options may not meet the necessary safety or operational criteria for handling fuel oil effectively, which is why they are not commonly used in such systems.