Page text

Sheet
Drawing No.
HILTI, Inc.
Date
Scale
WL
8079c
1 of 2
1/8" = 1"
June 18, 2013
UL/cUL SYSTEM NO. W-L-8079
F-RATING = 1-HR. OR 2-HR.
T-RATING = 0-HR., 1/2-HR., 3/4-HR., 1 1/2-HR., OR 2-HR.
NOTE : TESTED WITH A 2.5 Pa PRESSURE DIFFERENTIAL
WL8079c.061813
MULTIPLE PENETRATING ITEMS THROUGH GYPSUM WALL ASSEMBLY
A
A
SECTION A-A
FRONT VIEW
Tulsa, Oklahoma USA (800) 879-8000
1. GYPSUM WALL ASSEMBLY (UL/cUL CLASSIFIED U300, U400, V400, OR W400 SERIES) (1-HR. OR 2-HR.
FIRE-RATING) (2-HR. SHOWN) TO INCLUDE THE FOLLOWING CONSTRUCTION FEATURES :
A. [NOT SHOWN] WOOD STUDS TO CONSIST OF NOMINAL 2" x 4" LUMBER (SPACED MAXIMUM 16" OC).
STEEL STUDS TO BE MINIMUM 3-1/2" WIDE (SPACED MAXIMUM 24" OC).
B. NOMINAL 5/8" THICK GYPSUM WALLBOARD. TYPE, NUMBER OF LAYERS, AND SHEET ORIENTATION AS
SPECIFIED IN THE INDIVIDUAL UL DESIGN.
2. ONE OR MORE OF THE FOLLOWING PIPES, AND IN ANY COMBINATION MAY BE INSTALLED WITHIN THE
OPENING :
A. MAXIMUM 4" NOMINAL DIAMETER STEEL PIPE (SCH 10 OR HEAVIER).
B. MAXIMUM 4" NOMINAL DIAMETER CAST OR DUCTILE IRON PIPE.
C. MAXIMUM 3" NOMINAL DIAMETER COPPER PIPE OR TUBING.
D. MAXIMUM 3" NOMINAL DIAMETER STEEL CONDUIT OR EMT.
E. MAXIMUM 2" NOMINAL DIAMETER PVC PLASTIC PIPE (SCH 40, CELLULAR OR SOLID CORE) (VENTED
OR CLOSED PIPING SYSTEM) (SEE NOTE NO. 5 BELOW).
F. MAXIMUM 2" NOMINAL DIAMETER CPVC PLASTIC PIPE (SDR 13.5) (CLOSED PIPING SYSTEM) (SEE NOTE
NO. 5 BELOW).
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