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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.
SLEEVES OR
SIDE MOUNTING PLATE:
TYPE A SLEEVES
MODELS (D)1201 and D1251
E
OPTION CODE SMP
SIDE MOUNTING PLATE
Previous View
E26
E26
Options and Variables
All fire dampers require a steel sleeve of correct length and gauge in order
to be installed in accordance with the product's UL approved installation
instructions. Nailor recommends that all multi-blade fire dampers, including
Type A models, are specified and ordered complete with a factory installed
full sleeve (Type B and C models are manufactured as standard with a
transition casing that acts as a sleeve). Nailor can provide a factory
furnished sleeve that allows the units to ship directly to jobsite ready for
installation, saving time, money and costly shop or field fabrication, as well
as helping to ensure proper installation to UL requirements. A factory
furnished sleeve also permits factory mounting of Nailor's MLS-300
Position Indicator Switch Pack. Standard sleeve is 16" (406) long. For
further damper/sleeve details, see Models (D)1201 and D1251.
The following indicates model numbers to
order for multi-blade fire dampers with
factory fitted Type A sleeves:
STANDARD
MODEL #
(D)1200
D1250
Nailor's SMP, Side Mounting Plate is required for factory mounting of
the MLS-300 Position Indicator Switch Pack when a full factory sleeve
is not requested. As with all fire dampers, an appropriate steel sleeve is
required for installation of damper in wall or floor.
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Contents
WITH TYPE A
SLEEVE
MODEL (D)1201
MODEL D1251
SIDE MOUNTING PLATE FOR MULTI-BLADE
FIRE DAMPERS
Dimensions
Performance
Specification
Revised April 26, 2005
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