What is the purpose of Water Oil Gas (W.O.G.) rating in piping?

The purpose of the Water Oil Gas (W.O.G.) rating in piping is to indicate the types of substances the pipe can safely transport. This rating ensures that the materials used in the piping are compatible with the fluids they will carry, encompassing water, oil, and gas, which have different chemical properties and potential interactions with the pipe material. Understanding this compatibility is crucial for maintaining the integrity of the piping system, avoiding leaks, and ensuring the safety and efficiency of the operation.

While pressure tolerance, temperature range, and pipe fitting sizes are important factors in piping systems, they are not directly indicated by the W.O.G. rating. Instead, these factors would be addressed through other specifications and standards related to pipe design, materials, and installation practices. Therefore, focusing on the W.O.G. rating emphasizes its role in material compatibility and the safe transportation of specific substances through the piping system.