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Sheet
Drawing No.
HILTI, Inc.
Date
Scale
1. ANY UL/cUL CLASSIFIED CONCRETE BLOCK WALL ASSEMBLY (MIN. 7-5/8" THICK) (4-HR. FIRE-RATING).
2. PENETRATING ITEMS (MAX. QTY. = 2) TO CONSIST OF ANY COMBINATION OF THE FOLLOWING :
A. MAXIMUM 12" NOMINAL DIAMETER STEEL PIPE (SCHEDULE 10 OR HEAVIER).
B. MAXIMUM 6" NOMINAL DIAMETER COPPER PIPE OR TUBING.
C. MAXIMUM 6" NOMINAL DIAMETER STEEL CONDUIT.
D. MAXIMUM 4" NOMINAL DIAMETER EMT.
3. [OPTIONAL] NOMINAL 1-1/2" THICK GLASS-FIBER PIPE INSULATION (MIN. 3.5 PCF DENSITY).
4. MINIMUM 6" LONG JACKET FORMED OF MINIMUM 0.010" THICKNESS STEEL SHEET SECURED IN PLACE
WITH MINIMUM 1/2" WIDE STAINLESS STEEL HOSE CLAMP LOCATED AT CENTER OF JACKET. ENDS OF
THE JACKET TO OVERLAP BY A MINIMUM 2" AND EXTEND 1" INTO OPENING.
5. HILTI CFS-BL FIRESTOP BLOCK OR HILTI FS 657 FIRE BLOCK (2" THICK x 5" WIDE x 8" DEEP,
REFERENCE : FRONT VIEW) FIRMLY PACKED WITHIN OPENING. EITHER ONE OR A COMBINATION OF
BLOCK TYPES MAY BE USED.
NOTES : 1. MAXIMUM AREA OF OPENING = 480 SQ. IN., WITH A MAXIMUM DIMENSION OF 24".
2. ANNULAR SPACE BETWEEN PIPES, CONDUITS, OR TUBING AND PERIPHERY OF OPENING =
MINIMUM 1-1/2", MAXIMUM 4".
3. ANNULAR SPACE BETWEEN PIPES, CONDUITS, OR TUBING = MINIMUM 4", MAXIMUM 6-3/4".
4. ANNULAR SPACE BETWEEN INSULATED PIPES AND PERIPHERY OF OPENING = NOMINAL
1-1/2".
5. APPLY HILTI FS-ONE INTUMESCENT FIRESTOP SEALANT IN ANY VOID THAT MAY EXIST
AROUND PENETRANTS OR FIRESTOP/FIRE BLOCKS.
6. IF THE ANNULAR SPACE IS GREATER THAN 4", THEN ATTACH A STEEL WIRE MESH
(NOMINAL 2" SQUARES, NO. 16 SWG) WITH 1/4" DIAMETER x 1" LONG STEEL CONCRETE
ANCHORS AND 1-1/2" DIAMETER FENDER WASHERS (SPACED MAXIMUM 8" C/C) ON BOTH
SIDES OF WALL ASSEMBLY. STEEL WIRE MESH SHALL BEGIN MAXIMUM 2-1/2" FROM THE
PENETRANT AND OVERLAP MINIMUM 3" BEYOND THE PERIPHERY OF THE OPENING.
2 of 2
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Tulsa, Oklahoma USA (800) 879-8000
WJ
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F-RATING = 4-HR.
T-RATING = 0-HR.
MULTIPLE PENETRANTS THROUGH CONCRETE BLOCK WALL ASSEMBLY
UL/cUL SYSTEM NO. W-J-8008
tgUMMU~KMNNONO
Jan. 12, 2012