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MULTI-BLADE FIRE DAMPERS
Nailor multi-blade fire dampers are tested by and listed with Underwriters Laboratories Inc. and are manufactured
within UL procedural requirements. Approved variables including a variety of options and accessories are
available to suit specific applications.
FLANGED SLEEVE
OPTION CODES TDF1, TDF2
TDF FLANGE
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Revised April 26, 2005
Options and Variables
For Option TDF1 the sleeve is factory flanged on one end only.
For Option TDF2 the sleeve is factory flanged on both ends.
Note that the maximum wall/floor opening size permitted by UL, relative to
the damper size, may not physically allow the flange to fit through the
opening. Consultation and co-ordination with the wall/floor contractor is
recommended. TDF1, flange on one end only, will permit the non-flanged
end of the sleeve to fit through the opening.
For Curtain Type Fire Damper: 60" wide x 60" high (1524 x 1524).
For Multi-Blade Type Fire Damper: 36" wide x 48" high (914 x 1219).
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Contents
Maximum TDF1/TDF2 Sleeve Size Allowed:
Dimensions
Performance
TDF (by Engle) and TDC
(by Lockformer) proprietary
flange systems are approved
as breakaway connections
for connecting a multi-blade
fire damper Type A sleeve
(22
or
20
gauge)
to
ductwork. They may be
used
in
place
of
the
approved slip joints shown
in
standard
installation
instructions.
Specification
E27
E
E27
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