What type of pipe seam requirement exists for piping located in flood hazard areas?

In flood hazard areas, the code requires that piping is designed to withstand potential environmental stressors, including water exposure, debris impact, and physical movement. Welded seams provide a robust and secure connection between pipes, ensuring that the integrity of the piping system is maintained even when subjected to external pressures or flooding conditions.

Welded seams create a continuous, homogeneous connection that minimizes the chances of leaks or breaks, which is critical in areas where water can rise and potentially flood the system, leading to considerable damage and safety hazards. The strength and durability of welded seams are particularly advantageous in flood zones, where the forces of water can be quite significant.

While other seam types may be suitable for different applications, welded seams are specifically designed to handle the unique challenges presented by flood-prone environments. Factors such as the potential for corrosive materials or the need for flexibility in other scenarios do not outweigh the primary need for security in welding when dealing with flood hazards.