What is one of the safety measures used in gas line installation to prevent leakage?

One of the effective safety measures used in gas line installation to prevent leakage is the use of compression fittings. These fittings create a secure mechanical seal through the compression of a ferrule against the tubing when the fitting is tightened. This process not only ensures a tight connection but also allows for quick disconnection if needed without requiring special tools. Compression fittings are particularly advantageous in gas applications because they provide a reliable and tight seal that can withstand the pressures associated with gas flow.

In contrast, while the alternatives like sealing tape, welded joints, and flared fittings may also play roles in other types of connections or materials, they might not be as universally applicable or as reliable as compression fittings specifically for gas lines. Sealing tape is generally used for threaded joints, which can deteriorate over time and potentially lead to leaks. Welded joints are permanent and can be difficult to inspect or repair. Flared fittings, while good for certain applications, require precise fitting and can be less effective in preventing leakage if not properly installed. Therefore, compression fittings are recognized as a highly effective method for ensuring gas line integrity and safety.