What is the key difference between yellow jacketed and black jacketed CSST tubing?

The correct choice highlights that black jacketed CSST (corrugated stainless steel tubing) is specifically designed to provide insulation against lightning strikes. This is significant because it enhances the safety of gas installations in areas that are prone to thunderstorms and lightning activity. The black jacket serves as a protective layer that helps safeguard the tubing and the surrounding infrastructure.

In contrast, yellow jacketed CSST is typically used for general gas applications and does not have the same level of protection against lightning strikes. This key difference in their design and intended use makes the black jacketed version particularly valuable in situations where electrical safety is a concern.

Understanding the properties of each type of CSST is essential for professionals in the field to ensure that they choose the appropriate materials for different environmental conditions, maintaining safety and compliance with standards.