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Insulated Metal Pipe Through Concrete Floor/Wall or Block Wall Assembly

This document provides details on a firestop system for an insulated metal pipe passing through a concrete floor or wall assembly. The system includes a concrete floor/wall with optional steel sleeves, penetrating items like steel pipe, pipe insulation, mineral wool packing, and intumescent firestop sealant. It achieves fire resistance ratings of 2 hours for the floor/wall and 0 or 1 hour for the penetration.

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darwish.hilti
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1K views1 page

Insulated Metal Pipe Through Concrete Floor/Wall or Block Wall Assembly

This document provides details on a firestop system for an insulated metal pipe passing through a concrete floor or wall assembly. The system includes a concrete floor/wall with optional steel sleeves, penetrating items like steel pipe, pipe insulation, mineral wool packing, and intumescent firestop sealant. It achieves fire resistance ratings of 2 hours for the floor/wall and 0 or 1 hour for the penetration.

Uploaded by

darwish.hilti
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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UL/cUL SYSTEM NO.

C-AJ-5091
INSULATED METAL PIPE THROUGH CONCRETE FLOOR/WALL OR
BLOCK WALL ASSEMBLY

CAJ5091n.082611
F-RATING = 2-HR. L-RATING AT AMBIENT = 4 CFM/SQ. FT.
T-RATING = 0-HR. OR 1-HR. L-RATING AT 400° F = LESS THAN 1 CFM/SQ. FT.
TOP VIEW SECTION A-A
3

A A 1 2 6

1. CONCRETE FLOOR OR WALL ASSEMBLY (2-HR. FIRE-RATING) :


A. LIGHTWEIGHT OR NORMAL WEIGHT CONCRETE FLOOR OR WALL (MINIMUM 4-1/2" THICK).
B. ANY UL/cUL CLASSIFIED CONCRETE BLOCK WALL ASSEMBLY.
2. [OPTIONAL] ANY OF THE FOLLOWING STEEL SLEEVES MAY BE USED :
A. MAXIMUM 30" NOMINAL DIAMETER STEEL PIPE SLEEVE (SCHEDULE 10 OR HEAVIER) MAY EXTEND
MAXIMUM 3" ABOVE FLOOR, OR BOTH SURFACES OF WALL.
B. MAXIMUM 6" (MIN. 26 GA.) OR 12" (MIN. 24 GA.) DIAMETER GALVANIZED STEEL SLEEVE WITH
SQUARE FLANGE SPOT WELDED TO BOTTOM OF SLEEVE AND SIZED MINIMUM 2" LARGER THAN
SLEEVE DIAMETER. SLEEVE MAY EXTEND MAXIMUM 1" ABOVE TOP SURFACE OF FLOOR.
3. PENETRATING ITEM TO BE ONE OF THE FOLLOWING :
A. MAXIMUM 12" NOMINAL DIAMETER STEEL PIPE (SCHEDULE 10 OR HEAVIER).
B. MAXIMUM 12" NOMINAL DIAMETER CAST OR DUCTILE IRON PIPE.
C. MAXIMUM 6" NOMINAL DIAMETER COPPER PIPE OR TUBING.
4. MINIMUM 1/2" TO MAXIMUM 2" THICKNESS GLASS-FIBER PIPE INSULATION OR MAXIMUM 2" THICKNESS
CALCIUM SILICATE PIPE INSULATION (SEE NOTE NO. 3 BELOW).
5. MINIMUM 4" THICKNESS MINERAL WOOL (MINIMUM 4 PCF DENSITY) TIGHTLY PACKED AND RECESSED
TO ACCOMMODATE SEALANT.
6. MINIMUM 1/2" DEPTH HILTI FS-ONE INTUMESCENT FIRESTOP SEALANT.
NOTES : 1. MAXIMUM DIAMETER OF OPENING = 29".
2. ANNULAR SPACE = MINIMUM 1/2", MAXIMUM 12".
3. WHEN CALCIUM SILICATE PIPE INSULATION IS USED, SECURE INSULATION TO PIPE WITH
STAINLESS STEEL BANDS OR MINIMUM 8 AWG STAINLESS STEEL WIRE AT MAX. 12" O.C.
4. MINIMUM 1/2" DEPTH HILTI FS-ONE INTUMESCENT FIRESTOP SEALANT IS REQUIRED ON
BOTH SIDES OF A WALL ASSEMBLY.
Sheet 1 of 1 Drawing No.
HILTI, Inc.
Tulsa, Oklahoma USA (800) 879-8000
Scale
3/32" = 1" CAJ
Date
Aug. 26, 2011 5091n

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