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Hilti Firestop Systems
System No. C-AJ-2836
SECTION A-A
CAJ2836
Page: 1 of 3
System tested with a pressure differential of 50 Pa or 2.5 Pa between the exposed and unexposed surfaces with the higher pressure on the
exposed side (see table below).
1. Floor or Wall Assembly — Min 4-1/2 in. (114 mm) thick reinforced lightweight or normal weight (100-150 pcf) (1600-2400 kg/m3) concrete. Wall
may also be constructed of any UL Classified Concrete Blocks*. Max diameter of opening is 20 in. (356 mm).
See Concrete Blocks (CAZT) category in the Fire Resistance Directory for names of manufacturers.
1A. Sleeve — (Optional. Not Shown) - Nom 20 in. (356 mm) diam (or smaller) Schedule 10 steel pipe sleeve, or min. 24 ga sheet metal sleeve, or
Schedule 40 PVC pipe sleeve cast or grouted into floor or wall assembly, flush with floor or wall surfaces. The T, FT and FTH Ratings of the
firestop system are 0 hr when the steel pipe sleeve is used. Otherwise, the T, FT, and FTH Ratings of the firestop system are as specified in the
table below.
2. Through Penetrants — One nonmetallic pipe to be installed concentrically or eccentrically within the firestop system. Annular space between pipe
and periphery of opening to be min 1/4 in. (6 mm) to max 1-1/2 in. (32 mm). The F and T ratings, the tested pressure differential, and the firestop
method are dependent on the size and/or type of pipe as shown in the tables below. The following types and sizes of nonmetallic pipes may be
used:
A. Polyvinyl Chloride (PVC) Pipe — Nom 18 in. (305 mm) diam (or smaller) Schedule 40 solid core PVC for use in closed (process or supply) or
vented (drain, waste or vent) piping systems.
B. XFR Polyvinyl Chloride (PVC) Pipe — Nom 18 in. (305 mm) diam (or smaller) Schedule 40 PVC-XFR pipe for use in closed (process or
supply) or vented (drain, waste or vent) piping systems.
C. Chlorinated Polyvinyl Chloride (CPVC) Pipe — Nom 18 in. (305 mm) diam (or smaller) Schedule 40 CPVC pipe for use in closed (process or
supply) or vented (drain, waste or vent) piping systems.
D. Corzan Chlorinated Polyvinyl Chloride (CPVC) Pipe — Nom 18 in. (305 mm) diam (or smaller) Schedule 40 CPVC pipe for use in closed
(process or supply) or vented (drain, waste or vent) piping systems.
Reproduced by HILTI, Inc. Courtesy of
Underwriters Laboratories, Inc.
February 14, 2019
F Rating — 2 and 3 Hr (see Item 2)
FT Ratings — 0 1, 1-1/2 and 2-3/4 Hr (See Item 1A and Item 2)
FH Rating — 0 and 3 Hr (see Item 2)
FTH Ratings —0 and 2-3/4 Hr (See Item 1A and Item 2)
L Rating at Ambient — Less Than 5.1 L/s/m²
L Rating at 204 C — Less Than 5.1 L/s/m²
A
A
CANADA ONLY
C
C
L
A
S
S
I
F
I
E
D
Classified by
Underwriters Laboratories, Inc.
to CAN/ULC-S115
1
2
3A
3B
3C
3D
3E
2
1
3E