Page text

Sheet
Drawing No.
HILTI, Inc.
Tulsa, Oklahoma USA (800) 879-8000
Date
Scale
WL
5259c
1 of 1
9/64" = 1"
July 30, 2010
UL/cUL SYSTEM NO. W-L-5259
F-RATING = 2-HR.
T-RATING = 2-HR.
L-RATING AT AMBIENT = 4 CFM/SQ. FT.
L-RATING AT 400°F = LESS THAN 1 CFM/SQ. FT.
WL5259c.073010
INSULATED PIPE THROUGH GYPSUM WALL ASSEMBLY
A
A
SECTION A-A
FRONT VIEW
NOTES : 1. MAXIMUM DIAMETER OF OPENING = 6".
2. ANNULAR SPACE = MINIMUM 0", MAXIMUM 7/8".
1. GYPSUM WALL ASSEMBLY (UL/cUL CLASSIFIED U300 SERIES) (2-HR. FIRE-RATING) CONSISTING
OF THE FOLLOWING :
A. NOMINAL 2 x 4 STUDS SPACED MAXIMUM 24" OC.
B. STEEL "H" SHAPED STUDS SPACED MAXIMUM 24" OC.
C. TWO LAYERS 1" GYPSUM WALLBOARD LINER PANELS.
D. MINIMUM 1/2" THICK GYPSUM WALLBOARD.
2. PENETRATING ITEM TO BE ONE OF THE FOLLOWING :
A. MAXIMUM 2" NOMINAL DIAMETER STEEL PIPE (SCHEDULE 5 OR HEAVIER).
B. MAXIMUM 2" NOMINAL DIAMETER CAST OR DUCTILE IRON PIPE.
C. MAXIMUM 2" NOMINAL DIAMETER COPPER PIPE OR TUBING.
3. NOMINAL 1-1/2" THICK GLASS-FIBER PIPE INSULATION.
4. MINIMUM 2" DEPTH HILTI FS-ONE INTUMESCENT FIRESTOP SEALANT APPLIED WITHIN GYPSUM
WALLBOARD LINER PANELS.
5. MINIMUM 1/2" DEPTH HILTI FS-ONE INTUMESCENT FIRESTOP SEALANT APPLIED FLUSH WITH
OUTER SURFACES OF GYPSUM WALLBOARD.
6. MINIMUM 1/4" BEAD HILTI FS-ONE INTUMESCENT FIRESTOP SEALANT APPLIED AT POINT OF
CONTACT AT OUTER SURFACE OF GYPSUM WALLBOARD.
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