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Sheet
Drawing No.
HILTI, Inc.
Tulsa, Oklahoma USA (918) 252-6000
Date
Scale
FRONT VIEW
A
A
SECTION A-A
NOTES : 1. MAXIMUM SIZE OF OPENING = 8" x 8".
2. ANNULAR SPACE = MINIMUM 1/4", MAXIMUM 3/4".
3. THIS FIRESTOP SYSTEM WAS DESIGNED AND TESTED FOR APPLICATIONS IN WHICH THERE
IS LIMITED OR NO ACCESS AVAILABLE ON ONE SIDE OF WALL.
4. AS AN ALTERNATE TO THE ABOVE SHAFT WALL ASSEMBLY, A 1 OR 2-HR. GYPSUM WALL
ASSEMBLY MAY BE USED (U300, U400 OR V400 SERIES). STEEL STUDS TO BE MINIMUM 2-1/2"
WIDE. WOOD STUDS TO CONSIST OF NOMINAL 2 x 4 LUMBER.
5. WHEN SYSTEM IS INSTALLED IN A STANDARD WALL ASSEMBLY, MINERAL WOOL SHOULD BE
INSTALLED FLUSH WITH EITHER SIDE OF WALL AND RECESSED FROM OTHER SIDE TO
ACCOMMODATE SEALANT.
1. GYPSUM SHAFT WALL ASSEMBLY (UL/ULC CLASSIFIED U400 SERIES) (1-HR. OR 2-HR. FIRE-RATING)
(2-HR. SHOWN).
2. "C-T" SHAPED STEEL STUDS (1-5/8" WIDE x 2-1/2" DEEP, MIN. 25 GA.) SPACED MAXIMUM 24" C/C.
3. MAXIMUM 7" x 7" SHEET METAL DUCT (MIN. 24 GA.).
(NOTE : NOT FOR USE IN DUCT SYSTEMS CONTAINING A FIRE DAMPER).
4. MAXIMUM 8" x 8" SHEET METAL SLEEVE (MIN. 28 GA.) OR NO. 8 STEEL WIRE MESH SLEEVE HAVING
MINIMUM 1" OVERLAP ALONG LONGITUDINAL SEAM.
5. MINIMUM 2-1/8" OR 2-3/4" THICKNESS MINERAL WOOL (MIN. 4 PCF DENSITY) TIGHTLY PACKED AND
RECESSED ON ONE SIDE, FOR 1-HR. OR 2-HR. FIRE-RATED WALLS RESPECTIVELY.
6. MINIMUM 1" DEPTH HILTI FS-ONE INTUMESCENT FIRESTOP SEALANT.
WL
7069b
1 of 1
5/32" = 1"
Sep. 14, 2005
UL/cUL SYSTEM NO. W-L-7069
WL7069b.091405
F-RATING = 1-HR. OR 2-HR.
T-RATING = 0-HR.
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