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Sheet Drawing No. HILTI, Inc. Date Scale WL 5274b 1 of 2 7/64" = 1" Apr. 02, 2012 UL/cUL SYSTEM NO. W-L-5274 F-RATING = 1-HR. OR 2-HR. T-RATING = 0-HR., 1-1/2-HR., OR 1-3/4-HR. L-RATING AT AMBIENT = 4 CFM/SQ FT L-RATING AT 400°F = LESS THAN 1 CFM/SQ FT WL5274b.040212 INSULATED PIPE THROUGH GYPSUM WALL ASSEMBLY A SECTION A-A FRONT VIEW Tulsa, Oklahoma USA (800) 879-8000 A B SECTION B-B FRONT VIEW B CONFIGURATION A CONFIGURATION B 1 2 3 4 1 2 3 4 5