A pipe passes through a fire-rated wall assembly designated as System No. W-L-1029, achieving one and two-hour F ratings and zero T rating. The assembly maintains an L rating at ambient and four hundred degrees Fahrenheit of less than one cubic foot per minute per square foot. Section A-A indicates the pipe penetrating the wall centered within the rated partition, sealed with specific firestop materials.
2 3A 3B 3B 1A 2 1B 3A Section A-A A A xsm1.12,qc; System No. W-L-1029 s*; (Formerly System No. 467) F Ratings - 1 and 2 Hr (See Item 1B) T Rating - 0 Hr L Rating At Ambient - Less Than 1 CFM/sq ft L Rating At 400 F - Less Than 1 CFM/sq ft b0.25,a0.25;
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