What is an advantage of using expansion bends for high pressure service?

Using expansion bends for high-pressure service offers significant advantages, particularly in terms of maintenance and leak prevention. One of the primary benefits is that these bends are designed to accommodate thermal expansion and contraction within piping systems without stressing the joints or the pipe itself. This flexibility is crucial in maintaining the integrity of the system over time, especially under varying temperature conditions common in high-pressure applications.

The fact that expansion bends require no maintenance is a key point. By allowing for movement and reducing stress caused by thermal changes, they diminish the risk of fatigue and failure at joints, leading to a lower likelihood of leaks developing. This is particularly important in high-pressure scenarios where leaks can pose serious safety risks and operational inefficiencies. The durability and reliability of these bends thus enhance the overall longevity of the piping system.

In terms of other choices, while cost considerations for materials might vary, the critical aspect of safety and reliability in high-pressure services makes the maintenance-free advantage a priority. Additionally, while reducing flow resistance and maintenance are important, the emphasis on preventing leaks and requiring no maintenance distinctly sets expansion bends apart in high-pressure scenarios.