What is the main reason for using thick wall instead of thin wall copper pipe?

The main reason for using thick wall copper pipe over thin wall is its durability. Thick wall copper pipe is designed to withstand higher pressures and more severe conditions, making it an ideal choice for applications where structural integrity is crucial, such as in high-pressure or industrial settings.

The increased wall thickness provides greater resistance to physical impacts, corrosion, and thermal expansion, resulting in a longer lifespan and lower risk of leaks or failures. This enhanced durability makes thick wall copper pipe suitable for a variety of plumbing systems, including those carrying hot water, which can be prone to stress and wear over time.

Cost considerations, flexibility, and weight do play roles in the selection of pipe for specific applications, but durability is the primary advantage that thick wall copper offers, particularly in demanding plumbing scenarios.