The application of polytetrafluoroethylene (PTFE) tape, commonly known as Teflon tape, is generally avoided on threaded connections within gas systems due to potential incompatibility issues. Standard PTFE tape is designed primarily for use with liquid plumbing and may not provide a reliable seal in gas applications. The tape’s composition and thickness are not specifically formulated to withstand the properties of various gases, including natural gas and propane.
The primary concern is the possibility of tape degradation or disintegration when exposed to gases, leading to leaks and potentially hazardous situations. Moreover, the tape’s lubricating properties can unintentionally reduce friction during joint assembly, potentially leading to over-tightening and damage to the threaded connections. Historically, the use of improper sealing materials has been implicated in gas leaks, emphasizing the importance of utilizing approved sealants designed for gas systems.
