Ductile Iron Pipe (DIP) is considered what type of pipe?

Ductile Iron Pipe (DIP) is considered a flexible type of pipe. This flexibility allows it to absorb some ground movements and adapt to slight shifts in the soil, which is particularly useful in various installation conditions. Ductile iron is designed to provide considerable resistance to external forces while still being able to handle certain levels of bending or deflecting, making it ideal for many applications in water and wastewater systems.

The properties of ductile iron, combined with its ability to create strong joints, give it the capacity to accommodate changes without experiencing joint failure or pipe breakage. This characteristic is vital in maintaining the integrity and reliability of a pipeline system under varying environmental conditions.

While rigid types of pipe do not allow for any significant movement without cracking or breaking, and options like rigid-flex or corrugated do not accurately describe the performance characteristics of ductile iron pipe, the classification as flexible is based on its design and functionality in real-world applications.