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.
E27
MULTI-BLADE FIRE DAMPERS
E
MUL
TI-BLADE
FIRE
DAMPERS
E27
FLANGED SLEEVE
OPTION CODES
TDF1, TDF2
TDF FLANGE
Maximum TDF1/TDF2 Sleeve Size Allowed:
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).
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.
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.
Options and Variables
Revised April 26, 2005
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