What is the nature of the UL system identified as W-L-2093?

The UL system identified as W-L-2093 pertains specifically to non-metallic pipe penetrants. This designation indicates that the firestop system is designed to maintain the fire-resistance rating of a wall or floor assembly where non-metallic pipes pass through.

Non-metallic pipes, which may include materials such as PVC or CPVC, require specific firestop solutions to ensure that the integrity of the rated assembly is preserved during a fire scenario. The W-L-2093 system incorporates various firestop materials that are suitable for use with these types of pipe penetrations, ensuring that any gaps around the pipes are properly sealed to prevent the spread of fire, smoke, and gases.

Understanding the specific nature of this UL system is crucial for firestop application and inspection, as it guides professionals in selecting the correct materials and installation methods for effective fire stopping in non-metallic pipe applications.