What types of gas pipe fittings can PTFE tape be used on?

What types of gas pipe fittings can PTFE tape be used on?

Gas-grade PTFE thread seal tape is commonly used on compatible threaded metal fittings such as brass, steel, galvanized steel, and stainless steel fittings.

The tape is applied to the male thread to help fill the gaps between mating threads and support a reliable, leak-resistant connection.

Compatibility should always be confirmed according to the fitting manufacturer, gas medium, system design, and the approval conditions of the selected PTFE tape.