In gas systems, which type of pipe allows for greater flexibility in installations?

Copper tubing is the choice that allows for greater flexibility in installations within gas systems. This type of piping can be easily bent and shaped to accommodate various installation scenarios without requiring additional fittings, which can save time and reduce potential points of leaks. Furthermore, copper has a higher resistance to corrosion compared to some other materials, making it durable for gas applications.

Additionally, copper tubing is lightweight, which facilitates easier handling and installation in various settings, especially when navigating around obstacles or fitting into tight spaces. This malleability, combined with its robust properties for gas transport, makes copper tubing a practical option in many situations.

While welded pipe offers strong connections, it lacks the inherent flexibility that is often required in installations. Threaded pipe, although versatile, typically requires more fittings and joint connections that can add complexity and reduce flexibility compared to copper. Plastic pipe, while flexible, may not always be suitable for certain gas applications due to issues like temperature limitations and potential for degradation over time. Thus, copper tubing stands out as the most flexible option for gas installations.