Nailor D1200 Series User manual

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MULTI-BLADE FIRE DAMPERS
MULTI-BLADE FIRE DAMPERS
Nailor
Industries Inc.
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MULTI-BLADE FIRE DAMPERS
Contents Page No.
Product Overview E3
Airfoil Blade Fire Dampers
Model Series D1200 • Dynamic • 1 1/2 Hour E5
Model Series D1200-3 • Dynamic • 3 Hour E5
Model Series D1201-OW • Out of Wall Mounting • Dynamic • 1 1/2 Hour E9
Model Series 1200 • Static • 1 1/2 Hour E13
Vee-Groove Blade Fire Dampers
Model Series D1250 • Dynamic • 1 1/2 Hour E17
Round Fire Dampers
Model Series 1290F • Dynamic • 1 1/2 Hour E21
Options & Variables
Closure Temperatures
Fusible Link Temperature Ratings E24
Optional Seals
JSM Jamb Seals E24
BSP Blade Seals E24
Retaining Angles
QS1/QS2 'Quick-Set' Retaining Angles E25
Sleeves or Side Mounting Plate
Type A Sleeves E26
SMP Side Mounting Plate E26
Flanged Sleeve
TDF1/TDF2 TDF Flanges E27
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MULTI-BLADE FIRE DAMPERSMULTI-BLADE FIRE DAMPERS
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MULTI-BLADE FIRE DAMPERS
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MULTI-BLADE FIRE DAMPERS
MODEL SERIES D1250
DYNAMIC FIRE DAMPER • VEE-GROOVE BLADE
Model Series D1250, with sturdy vee-groove style blades
and rugged mitered corner hat channel frame design that
virtually eliminates racking, provides 1 1/2 hour UL labeled
fire protection suitable for use where ductwork penetrates a
wall or floor with a fire resistance rating of up to 2 hours. The
over-center/knee lock with high torque spring fusible link
assures fail-safe closure during fire conditions. The D1250
series is also approved for use in both static or dynamic
HVAC system designs. Available with factory fitted sleeve
Model D1251, and choice of transition styles, the series is
supplied as standard with a manual locking quadrant, and is
a versatile and economical performer suitable for use in the
majority of today's applications.
GENERAL PRODUCT OVERVIEW
As today’s modern commercial and industrial building construction becomes increasingly life safety oriented, fire containment
and active smoke management systems are being utilized to a higher degree as more sophisticated technology is developed
and implemented into building codes. The development process begins with the understanding of fire and smoke behavior
through the research and study of real life emergency situations, and culminates in the design, testing of, and ultimate use
of new products to better control and manage the ravages of fire and smoke. Thus, resulting property damage is minimized
and occupant safety is maximized. Nailor Industries commitment to the development of new and existing fire and smoke
control technology has resulted in a comprehensive line of premium quality smoke, fire and combination fire/smoke dampers
and accessories, available at a reasonable cost and in a timely fashion. Nailor's ‘multi-blade’ type fire dampers are available
in several blade and frame styles including ‘true round’, to suit most applications.
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Model D1200
Model D1201-OW
MODEL SERIES D1200 AND D1200-3
DYNAMIC FIRE DAMPER • AIRFOIL BLADE
PREMIUM PERFORMANCE
Provides the ultimate in fire containment for both static and
dynamic HVAC systems. The D1200 Series utilizes an
innovative inter-locking double skin airfoil blade design that
maintains a complete barrier throughout the fire test with
absolutely no visible through-gaps. Amazingly, the D1200
Series fire damper gets tighter as it gets hotter! Ideal for use
where building codes require a fire damper for the protection
of ductwork penetrations in walls or floors. Premium
performance, versatility and assured closure make the
D1200 Series an excellent choice for the majority of today’s
applications.
MODEL D1201-OW
DYNAMIC FIRE DAMPER • AIRFOIL BLADE
OUT OF WALL MOUNTING
Model D1201-OW is an "out of wall" high performance fire
damper. It is specifically designed for supply or return ducts
that terminate at a grille and provides through the grille
access to the damper. Standard sleeve length
accommodates most commercial supply and return
grilles/registers. It offers premium performance and a low
pressure drop well suited to the majority of commercial
applications. Unique, inter-locking double skin blade design
eliminates combustible seals and provides flame protection
under fire conditions at temperatures up to 2000°F. The
D1201-OW is supplied as standard with an internal locking
quadrant which holds the damper in the fully open position,
but may also be used for system balancing if required.
Model D1250
MULTI-BLADE FIRE DAMPERS
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MULTI-BLADE FIRE DAMPERS
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MULTI-BLADE FIRE DAMPERS
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MODEL SERIES 1200
AIRFOIL BLADE FIRE DAMPER
FOR STATIC SYSTEMS
Nailor’s 1200 Series multi-blade fire damper is classified for
use only in static "fans off" systems where the HVAC system
is automatically shut down in the event of a fire alarm. The
1200 Series utilizes an innovative inter-locking double skin
airfoil blade design that maintains a complete barrier
throughout the fire test with absolutely no visible through-
gaps. Amazingly, the 1200 Series fire damper gets tighter as
it gets hotter! Ideal for use where building codes require a
fire damper for the protection of ductwork penetrations in
walls or floors, Model Series 1200 has a 1 1/2 hour UL label
suitable for use in separations with fire resistance ratings of
less than 3 hours. Model 1200
GENERAL PRODUCT OVERVIEW
MODEL 1290F
TRUE ROUND FIRE DAMPER
FOR STATIC OR DYNAMIC SYSTEMS
Model 1290F is suitable for use where building codes require
a fire damper for protecting ductwork penetrations in walls or
floors that have a fire resistance rating of up to 2 hours. It is
an economical true round fire damper designed and qualified
for point-of-origin fire containment where round ductwork
passes through metal stud drywall partitions or masonry
walls. Features of the 1290F include the industry proven
over-center/knee lock design with high torque spring/fusible
link closure which provides fail-safe security under fire
conditions. Each damper is supplied as standard with
retaining plates for fast secure installation and a hand
locking quadrant which holds the damper in the fully open
position, but may also be used for system balancing if
required.
Model 1290F
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• PREMIUM PERFORMANCE
• AIRFOIL BLADE
• UL 555 CLASSIFIED
DYNAMIC FIRE DAMPER
Nailor’s D1200 Series multi-blade fire damper provides the ultimate in fire containment for both static and dynamic HVAC systems. The D1200
Series utilizes an innovative inter-locking double skin airfoil blade design that maintains a complete barrier throughout the fire test with
absolutely no visible through-gaps. Amazingly, the D1200 Series fire damper gets tighter as it gets hotter! Ideal for use where building codes
require a fire damper for the protection of ductwork penetrations in walls or floors, Model Series D1200 has a 1 1/2 hour UL label suitable for
use in separations with fire resistance ratings of less than 3 hours. Model Series D1200-3 has a 3 hour ULlabel suitable for use in separations
with a fire resistance rating of 3 hours or more. Features include a unique airfoil blade design and maintenance-free concealed blade linkage
for extremely low pressure drop and minimal turbulence and noise. Rugged hat-channel frame is reinforced with die-formed corner gussets
for superior rigidity. Industry proven high torque spring/fusible link with over-center knee lock design provides the security of assured closure
under fire condition. Supplied as standard with an internal hand locking quadrant to hold blades in open position or balance the system, the
D1200 Series is available with factory fitted sleeve ready for installation and choice of transition styles to suit duct size and type. Premium
performance, versatility and assured closure make the D1200 Series an excellent choice for the majority of today’s applications.
MODELS:
D1200 1 1/2 HR LABEL
D1200-3 3 HOUR LABEL
AIRFOIL BLADE FIRE DAMPERS
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MULTI-BLADE FIRE DAMPERS
AIRFOIL
QUALIFICATIONS:
• UL 555 CLASSIFIED DYNAMIC FIRE DAMPER • 1 1/2 hr. or 3 hr. Label. (File # R9492).
• CAN/ULC-S112 CLASSIFIED FIRE DAMPER • 1 1/2 hr. or 3 hr. Label. (File # R19569).
• Meets NFPA 80, 90A and 101 as well as IBC and NBC (Canada) and associated
local building code requirements.
• California State Fire Marshal Listing No. 03225-0935:101.
• City of New York. MEA # 366-03-M.
• Max. velocity 2000 fpm @ 4" w.g. (10 m/s @ 1 kPa) (up to 3000 fpm with size lim.).
TYPE A: MODELS D1200/D1200-3
CONSTRUCTION DETAILS:
FRAME: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) galvanized steel hat channel.
BLADES: 14 ga. (2.0) equivalent galvanized steel formed airfoil on 5 1/2" (140)
centers. Opposed action.
LINKAGE: Concealed in frame. 12 ga. (2.7) plated steel.
BEARINGS: 1/2" (13) dia. self-lubricating oilite bronze.
AXLES: 1/2" (13) dia. plated steel double bolted to blades.
JACKSHAFT: 1/2" (13) dia. cadmium plated steel.
Internal locking quadrant is factory installed.
FUSIBLE LINK: 165°F (74°C) standard. 212°F (100°C) available.
MODEL D1200 (1 1/2 HR. LABEL) MODEL D1200-3 (3 HR. LABEL)
MIN. DUCT MIN. DUCT
SIZE: Vertical or Horizontal mount: 8" x 8" (203 x 203). SIZE: Vertical or Horizontal mount: 8" x 8" (203 x 203).
MAX. DUCT MAX. DUCT
SIZE: Single Section SIZE: Single Section
Vertical mount: 36" x 48" (914 x 1219). Vertical mount: 36" x 48" (914 x 1219).
Horizontal mount: 32" x 48" (813 x 1219). Horizontal mount: 32" x 48" (813 x 1219).
Multiple Section Assembly Multiple Section Assemblies are not permitted.
Vertical mount: 72" x 48" (1829 x 1219) or
36" x 96" (914 x 2438).
Horizontal mount: 64" x 48" (1626 x 1219) or
32" x 96" (813 x 2438).
5"
(127)
W= NOMINAL DUCT SIZE - 1/4" (6)
H = NOMINAL DUCT SIZE - 1/4" (6)
Model D1200
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AIRFOIL BLADE FIRE DAMPERS
Model Series D1200 dampers with duct heights less than 8" (203) require a type 'B' sleeve enclosure
(Models D1202/D1202-3). Units less than 8" (203) in width only, or in both width and height, require a Type
'C' enclosure (Models D1203/D1203-3).
Min. Duct Size: 8" x 4" (203 x 102)
(Overall damper height is 8" (203)).
Max. Duct Size: Single Section
Vertical mount: 36" x 7 1/2" (914 x 191).
Horizontal mount: 32" x 7 1/2" (813 x 191).
Multiple Section Assembly Model 1202
Vertical mount: 72" x 7 1/2" (1829 x 191).
Horizontal mount: 64" x 7 1/2" (1626 x 191).
Multiple Section Assembly Model 1202-3
Multiple Section Assemblies are not permitted.
Min. Duct Size: Vertical or Horizontal mount:
4" (102) diameter.
(Overall damper size is 8" x 8"
(203 x 203) min.).
Max. Duct Size: Single Section
Vertical mount: 34" (864) diameter.
Horizontal mount: 30" (762) diameter.
Multiple Section Assembly Model 1203
Vertical or
Horizontal mount: 46" (1168) diameter.
Multiple Section Assembly Model 1203-3
Multiple Section Assemblies are not permitted.
Min. Duct Size: Vertical or Horizontal mount:
4" x 4" (102 x 102).
(Overall damper size is 8" x 8"
(203 x 203) min.).
Max. Duct Size: Single Section
Vertical mount: 34" x 46" (864 x 1168).
Horizontal mount: 30" x 46" (762 x 1168).
Multiple Section Assembly Model 1203
Vertical mount: 70" x 46" (1778 x 1168) or
34" x 94" (864 x 2388).
Horizontal mount: 62" x 46" (1575 x 1168) or
30" x 94" (762 x 2388).
Multiple Section Assembly Model 1203-3
Multiple Section Assemblies are not permitted.
8" (203)
SLEEVE
DAMPER
16" (406) STANDARD
'B'
ENCLOSURE
BOTH ENDS
5" (127)
CCW
TO
OPEN
'C' ENCLOSURE BOTH ENDS
D –
1/8" (3)
(D –
1/4" (6)
OVER
36"
(914))
8" (203)
STANDARD
SLEEVE
DAMPER
16" (406) STANDARD
5" (127)
CCW
TO
OPEN
8"
(203)
OVERALL
H =
NOM.
DUCT
SIZE
W = NOM. DUCT SIZE
D + 2" (51)
D =
NOM.
DUCT
DIA.
D
+
2"
(51)
W + 2" (51)
W
H
H
+
2"
(51)
W = NOM. DUCT SIZE
W + 2" (51)
H =
NOM.
DUCT
SIZE
H
+
2"
(51)
8" (203)
SLEEVE
DAMPER
SLEEVE = NOMINAL DUCT SIZE
16" (406) STANDARD
5" (127)
1 7/8" (48) MAX.
CCW
TO
OPEN
WITH TYPE A SLEEVE: MODELS D1201/D1201-3 TYPE B SLEEVE ENCLOSURE: MODELS D1202/D1202-3
STYLE CR : FOR ROUND DUCT STYLE CO : FOR OVAL DUCT STYLE CSR : FOR SQUARE OR
RECTANGULAR DUCT
Standard factory sleeve
(caulked to UL
requirements) 16" long x
20 ga. (406 x 1.0).
Available up to 36" (914)
dependent upon wall
thickness and 10
through 20 ga. (3.5 - 1.0).
*or 8"
(203) min.
*
*or 8" (203) min.
**
TYPE C SLEEVE ENCLOSURES:
MODELS D1203/D1203-3
**
*
Wall Minimum
Thickness Sleeve
Length
4 (102) 16 (406)
8 (203) 20 (508)
12 (305) 24 (610)
16 (406) 28 (711)
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MULTI-BLADE FIRE DAMPERS
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MODELS: D1200/D1201/D1202/D1203 (1 1/2 HOUR LABEL)
D1200-3/D1201-3/D1202-3/D1203-3 (3 HOUR LABEL)
VARIABLES/ACCESSORIES
VARIABLES: CODE DESCRIPTION
MOUNTING: V Vertical Mount (wall)
H Horizontal Mount (floor)
MAXIMUM VELOCITY/ 24 2000 fpm @ 4" w.g.
PRESSURE RATING: 34 3000 fpm @ 4" w.g.
CLOSURE DEVICE: FL Fusible Link
CLOSURE TEMP.: 165 165°F (74°C)
212 212°F (100°C)
SLEEVE LENGTH: Specify Sleeve Length: 12" (305) to 36" (914)
SLEEVE GAUGE: 20 G 20 ga. (1.0 mm)
18 G 18 ga. (1.2 mm)
16 G 16 ga. (1.6 mm)
14 G 14 ga. (2.0 mm)
10 G 10 ga. (3.5 mm)
IF MODEL D1203 IS SELECTED, CR Round Type C Transitions
SPECIFY TYPE OF TRANSITION: CO Oval Type C Transitions
CSR Square/Rect. Type C Transitions
DAMPER LOCATION L8 8" (204) from Sleeve End
IN SLEEVE: L0 Specify Dimension from Sleeve End
OPTIONAL JAMB SEALS: JSM Flexible Metal Jamb Seals
ACCESSORIES: CODE DESCRIPTION
POSITION INDICATOR: 300 MLS-300 Switch Pack
SIDE MTG. PLATE: SMP Side Mounting Plate (required for
mounting of MLS-300 without sleeve)
RETAINING ANGLES: QS1 One "Quick Set" retaining angle
QS2 Set of two "Quick Set" retaining angles
FLANGED SLEEVE: TDF1 TDF Flange on One End
(MODELS D1201 AND D1201-3 ONLY) TDF2 TDF Flange on Both Ends
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AIRFOIL BLADE FIRE DAMPERS
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MULTI-BLADE FIRE DAMPERS
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Tested per AMCA standard 500-D, Fig. 5.3.
PERFORMANCE DATA:
.40
(100.0)
.02
(5.0)
.01
(2.5)
.03
(7.5)
.04
(10.0)
.05
(12.5)
.06
(15.0)
.08
(20.0
.20
(50.0)
.5
(125.00)
.30
(75.0)
.1
(25.0)
300
(1.50) 3000 (15.24) 4000 (20.32)
700
(3.56)
500
(2.54) 2000 (10.16)
1000
(5.08)
Face AreaVelocity in feet per minute (m/s)
Static Pressure Drop in inches w.g. (Pa)
SIZE 24" x 24" (610 x 610) SIZE 36" x 36" (914 x 914)
PRESSURE DROP (damper fully open)
Imperial figures shown.
To convert to SI
(metric) system:
Multiply:
CFM x .4719 = liters per
second
inches w.g. x .2486
= kilopascals
fpm x .00508 = meters
per second
cfm per sq. ft. x 5.08 =
liters/second per
sq. meter.
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HOW TO SPECIFY OR TO ORDER
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AIRFOIL BLADE FIRE DAMPERS
MULTI-BLADE FIRE DAMPERS
MODELS: D1200/D1201/D1202/D1203 (1 1/2 HOUR LABEL)
D1200-3/D1201-3/D1202-3/D1203-3 (3 HOUR LABEL)
HOW TO ORDER:
Select model number and size, then select from each variable as applicable. Choose accessories as desired.
See previous page for description of variables and accessories.
Notes: 1. * Standard sleeve is 16" (406) long (suitable for 4" (102) thick wall) x 20 ga. (1.0).
MODEL
SIZE
(W X H)
MOUNTING
CLOSURE DEVICE
CLOSURE TEMP.
SLEEVE LENGTH
*
SLEEVE GAUGE
*
JAMB SEALS
(OPTIONAL)
DAMPER LOCATION
IN SLEEVE
TRANSITION TYPE
(MODEL 1203
ONLY)
D1200 ie: 36" x 24" V 24 FL 165 20G CR L8 NONE 300
D1201 or H 34 212 18G CO L0 JSM SMP
D1202 18" dia. 16G CSR QS1
D1203 14G QS2
D1200-3 10G TDF1
D1201-3 TDF2
D1202-3
D1203-3
ACCESSORIES
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MULTI-BLADE FIRE DAMPERS
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MAX. VELOCITY/
PRESSURE RATING
SPECIFY LENGTH
SUGGESTED SPECIFICATION:
Provide and install, as shown on plans and/or schedules, multi-blade Dynamic Fire Dampers, as manufactured by Nailor
Industries, meeting or exceeding the following criteria: Frame shall be constructed of 16 ga. (1.6) galvanized steel hat channel
with mitered corners reinforced with die-formed corner gussets for strength. Blades shall be 14 ga. (2.0) equivalent galvanized
steel formed double skin, airfoil design, on 5 1/2" (140) centers. Dampers shall be of opposed blade configuration with an
interlocking blade design that provides complete flame and smoke seal under fire conditions at an elevated temperature of 2000°F
(1093°C) when in closed position. Blade axles shall be plated steel, double bolted at each end of blade to provide positive locking
connection. Hex or square friction-fit, or press-fit axles are not acceptable. Bearings shall be self-lubricating oilite bronze type.
Blade linkage shall be zero-maintenance, concealed in frame, out of airstream.
Fire dampers shall meet the requirements of NFPA 90Aand shall be manufactured, tested and labeled in accordance with UL555
Safety Standard for Fire Dampers – Sixth Edition, June 1999, including Dynamic Closure Test. Dampers shall be classified for
dynamic closure against an airflow velocity of 2000 fpm (10.16 m/s) or 3000 fpm (15.24 m/s) (specifier select one) at 4" w.g.
(1 kPa) static pressure differential (across closed damper).
Each fire damper shall bear a UL 1 1/2 hour or 3 hour (specifier select one) fire resistance rating label, in addition to label
verifying the airflow and closure pressure ratings as established by the Dynamic Closure Test. Each fire damper shall also be
marked with the words "For use in dynamic systems". Dampers marked "For use in static systems only" are not acceptable.
Each fire damper shall be complete with a (specifier select one) 165°F (74°C) or 212°F (100°C) UL Listed fusible link that will
cause the damper to close and lock in closed position by means of an over center/knee lock linkage for assured closure. Fire
dampers shall each include a steel sleeve of appropriate length/gauge as field verified by contractor, and retaining angles,
supplied by damper manufacturer to ensure proper installation in accordance with damper manufacturer’s instructions. Each
damper shall be supplied with an internal manual quadrant(s) for setting and locking of blades in desired position. Contractor shall
provide and install an access door at each fire damper, of appropriate size to allow for inspection, testing and fusible link
replacement. Information submitted for approval shall include independent pressure drop data and confirmation of UL
qualifications in addition to manufacturer’s installation instructions. Each shipment of fire dampers shall include same installation
instructions. Dynamic rated fire dampers shall be Nailor Industries Model Series D1200 (1 1/2 hour label) or Model Series D1200-
3 (3 hour label), as indicated on plans.
Specification Text File
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MULTI-BLADE FIRE DAMPERS
• "OUT OF WALL"
MOUNTING
• AIRFOIL BLADE
• UL 555 CLASSIFIED
DYNAMIC FIRE DAMPER
The Model D1201-OW is an "out of wall" high performance fire damper. It is specifically designed for supply or return ducts that terminate
at a grille and provides through the grille access to the damper. Standard sleeve length accommodates most commercial supply and
return grilles/registers.
The D1201-OW is ideal for applications where building codes require a fire damper for the protection of ductwork penetrations in walls or
floors that have a fire resistance rating of up to 2 hours.
The D1201-OW offers premium performance and a low pressure drop well suited to the majority of commercial applications. Unique,
inter-locking double skin blade design eliminates combustible seals and provides flame protection under fire conditions at temperatures
up to 2000°F.
The D1201-OW is supplied as standard with an internal locking quadrant which holds the damper in the fully open position, but may also
be used for system balancing if required.
Model D1201-OW
OUT OF WALL MULTI-BLADE FIRE DAMPERS
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MULTI-BLADE FIRE DAMPERS
MODEL: D1201-OW
AIRFOIL
CONSTRUCTION DETAILS:
Frame: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) galvanized steel hat channel.
Blades: 14 ga. (2.0) equivalent galvanized steel formed airfoil on 5 1/2"
(140) centers. Opposed action.
Sleeve: 16" x 20 ga. (406 x 1.0) galvanized steel with 3/4" (19) flange on
one end standard.
Insulation: Intumescent thermal insulation on four sides.
Linkage: Concealed in frame. 12 ga. (2.7) plated steel.
Bearings: 1/2" (13) dia. self-lubricating oilite bronze.
Axles: 1/2" (13) dia. plated steel double bolted to blades.
Jackshaft: 1/2" (13) dia. cadmium plated steel.
Internal locking quadrant is factory installed.
Fusible Link: 165°F (74°C) standard.
212°F (100°C) available.
Minimum Size: Vertical or Horizontal mount: 8" W x 8" H (203 x 203).
Maximum Size: Single Section
Vertical mount: 36" W x 48" H (914 x 1219).
Horizontal mount: 32" W x 48" H (813 x 1219).
Multiple Section Assemblies are not permitted.
5"
(127)
W = NOMINAL DUCT SIZE - 1/4" (6)
H = NOMINAL DUCT SIZE - 1/4" (6)
MODEL D1201-OW
(DAMPER ONLY SHOWN)
QUALIFICATIONS:
• UL 555 CLASSIFIED DYNAMIC FIRE DAMPER • 1 1/2 hr. Label
(File # R9492).
• CAN/ULC-S112 CLASSIFIED FIRE DAMPER (File # R19569).
• Meets NFPA 80, 90A and 101 as well as IBC and NBC (Canada) and
associated local building code requirements.
• Maximum velocity 2000 fpm @ 4" w.g. (10 m/s @ 1 kPa) (up to 3000 fpm
with size limitations).
• For use in vertical or horizontal concrete partitions and vertical steel stud
partitions only.
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OUT OF WALL MULTI-BLADE FIRE DAMPERS
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MULTI-BLADE FIRE DAMPERS
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16" (406) MAX.
GRILLE/REGISTER
(BY NAILOR
OR OTHERS)
DRYWALL PARTITION
HAND
LOCKING
QUADRANT
STANDARD DEPTH
FOR GRILLE
CLEARANCE IS
3 1/4" (83)
16" (406) STD.
INSULATION
SLEEVE I.D. = NOMINAL DUCT SIZE
OVERSIZE WALL
OPENING
AS FOLLOWS:
NOM. DAMPER
SIZE + 1/2" (13).
CONCRETE PARTITION
MODEL: D1201-OW
NOTES:
1. IMPORTANT: DAMPERS ARE FURNISHED FULL ORDERED SIZE TO FACILITATE GRILLE INSTALLATION.
OPENING SIZE IN PARTITION SHOULD BE SIZED 1/2" (13) LARGER IN ALL DIRECTIONS TO ALLOW FOR
SLEEVE THICKNESS.
2. FOR PERFORMANCE DATA SEE MODEL D1200.
MODEL D1221-OW
‘OUT OF WALL’ MOUNTING
ATypical 2 hour rated vertical
concrete or steel stud construction
and horizontal concrete fire partition.
BDuct connection.
CIntumescent material (insulation).
D#10 sheet metal screws or concrete
anchors.
EManual Locking Quadrant
FGrille/Diffuser
GRear retaining angle
(required for horizontal mounting).
16" (406) MAX.
3/4" (19)
MIN. FLANGE
A
BC
D
F
E
CONCRETE PARTITION
16"
(406)
MAX.
3/4" (19)
MIN. FLANGE A
B
C
G
F
ED
VERTICAL MOUNT HORIZONTAL MOUNT
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MODEL
SIZE
(W X H)
MOUNTING
CLOSURE DEVICE
CLOSURE TEMP.
JAMB SEALS
(OPTIONAL)
ACCESSORIES
D1201-OW ie: 32" x 24" V FL 165 NONE 300
H 212 JSM QS1
VARIABLES/ACCESSORIES
VARIABLES: CODE DESCRIPTION
MOUNTING: V Vertical Mount (wall)
H Horizontal Mount (floor)
CLOSURE DEVICE: FL Fusible Link
CLOSURE TEMP.: 165 165°F (74°C)
212 212°F (100°C)
OPTIONAL JAMB SEALS: JSM Flexible Metal Jamb Seals
ACCESSORIES: CODE DESCRIPTION
POSITION INDICATOR: 300 MLS-300 Switch Pack
RETAINING ANGLES: QS1 One "Quick Set" retaining angle
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OUT OF WALL MULTI-BLADE FIRE DAMPERS
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MULTI-BLADE FIRE DAMPERS
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HOW TO ORDER
MODEL: D1201-OW
MODEL: D1201-OW
HOW TO ORDER:
Select model number and size, then select from each variable as applicable. Choose accessories as desired.
See above for description of variables and accessories.
Notes:
1. Important: Damper is furnished full ordered size to facilitate grille installation.
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E12
OUT OF WALL MULTI-BLADE FIRE DAMPERS
E
MULTI-BLADE FIRE DAMPERS
E12
HOW TO SPECIFY
MODEL: D1201-OW
SUGGESTED SPECIFICATION:
Provide and install, as shown on plans and/or schedules, multi-blade "Out of Wall" Dynamic Fire Dampers, as manufactured by
Nailor Industries, meeting or exceeding the following criteria: Frame shall be constructed of 16 ga. (1.6) galvanized steel hat
channel with mitered corners reinforced with die-formed corner gussets for strength. Blades shall be 14 ga. (2.0) equivalent
galvanized steel formed double skin, airfoil design, on 5 1/2" (140) centers. Dampers shall be of opposed blade configuration with
an interlocking blade design that provides complete flame and smoke seal under fire conditions at an elevated temperature of
2000°F (1093°C) when in closed position. Blade axles shall be plated steel, double bolted at each end of blade to provide positive
locking connection. Hex or square friction-fit, or press-fit axles are not acceptable. Bearings shall be self-lubricating oilite bronze
type. Blade linkage shall be zero-maintenance, concealed in frame, out of airstream.
Fire dampers shall meet the requirements of NFPA 90Aand shall be manufactured, tested and labeled in accordance with UL555
Safety Standard for Fire Dampers – Sixth Edition, June 1999, including Dynamic Closure Test. Dampers shall be classified for
dynamic closure against an airflow velocity of 2000 fpm (10.16 m/s) at 4" w.g. (1 kPa) static pressure differential (across closed
damper).
Each fire damper shall bear a UL 1 1/2 hour fire resistance rating label, in addition to label verifying the airflow and closure
pressure ratings as established by the Dynamic Closure Test. Each fire damper shall also be marked with the words "For use in
dynamic systems". Dampers marked "For use in static systems only" are not acceptable.
Each fire damper shall be complete with a (specifier select one) 165°F (74°C) or 212°F (100°C) UL Listed fusible link that will
cause the damper to close and lock in closed position by means of an over center/knee lock linkage for assured closure. Fire
dampers shall be supplied with factory installed sleeves of 20 ga. (1.0) galvanized steel with 3/4" (19) flange on one end. Sleeves
shall be factory insulated on all four sides with intumescent thermal insulation. Each damper shall be supplied with an internal
manual quadrant for setting and locking of blades in desired position. Contractor shall provide and install an access door at each
fire damper, of appropriate size to allow for inspection, testing and fusible link replacement. Information submitted for approval
shall include independent pressure drop data and confirmation of UL qualifications in addition to manufacturer’s installation
instructions. Each shipment of fire dampers shall include same installation instructions. Dynamic rated "Out of Wall" fire dampers
shall be Nailor Industries Model D1201-OW.
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AIRFOIL BLADE FIRE DAMPERS
E
MULTI-BLADE FIRE DAMPERS
E13
• PREMIUM
PERFORMANCE
• AIRFOIL BLADE
• UL 555 CLASSIFIED
FIRE DAMPER
• FOR USE IN STATIC
SYSTEMS
Nailor’s 1200 Series multi-blade fire damper is classified for use only in static "fans off" systems where the HVAC system is
automatically shut down in the event of a fire alarm. The 1200 Series utilizes an innovative inter-locking double skin airfoil blade
design that maintains a complete barrier throughout the fire test with absolutely no visible through-gaps. Amazingly, the 1200
Series fire damper gets tighter as it gets hotter! Ideal for use where building codes require a fire damper for the protection of
ductwork penetrations in walls or floors, Model Series 1200 has a 1 1/2 hour UL label suitable for use in separations with fire
resistance ratings of less than 3 hours. Features include a unique airfoil blade design and maintenance-free concealed blade
linkage for extremely low pressure drop and minimal turbulence and noise. Rugged hat-channel frame is reinforced with die-
formed corner gussets for superior rigidity. Industry proven high torque spring/fusible link with over-center knee lock design
provides the security of assured closure under fire condition. Supplied as standard with an internal hand locking quadrant to hold
blades in open position or balance the system, the 1200 Series is available with factory fitted sleeve ready for installation and
choice of transition styles to suit duct size and type.
MODELS:
1200 TYPE A
1201 TYPE A IN SLEEVE
1202 TYPE B
1203 TYPE C
AIRFOIL
TYPE A: MODEL 1200
CONSTRUCTION DETAILS:
FRAME: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) galvanized steel hat channel.
BLADES: 14 ga. (2.0) equivalent galvanized steel formed airfoil on 5 1/2"
(140) centers. Opposed action.
LINKAGE: Concealed in frame. 12 ga. (2.7) plated steel.
BEARINGS: 1/2" (13) dia. self-lubricating oilite bronze.
AXLES: 1/2" (13) dia. plated steel double bolted to blades.
JACKSHAFT: 1/2" (13) dia. cadmium plated steel.
Internal locking quadrant is factory installed.
FUSIBLE LINK: 165°F (74°C) standard. 212°F (100°C) available.
Minimum Size: Vertical or Horizontal mount: 8" W x 8" H (203 x 203).
Maximum Size: Single Section
Vertical mount: 36" W x 48" H (914 x 1219).
Horizontal mount: 32" W x 48" H (813 x 1219).
Multiple Section Assemblies
Vertical or Horizontal mount: 144" W x 96" H (3658 x 2438).
5"
(127)
W = NOMINAL DUCT SIZE - 1/4" (6)
H = NOMINAL DUCT SIZE - 1/4" (6)
QUALIFICATIONS:
• UL 555 & CAN/ULC-S112 CLASSIFIED FIRE DAMPER • 1 1/2 hr. Label.
(File #’s R9492 & R19569).
• Meets NFPA 80, 90A and 101 as well as IBC and NBC (Canada) and
associated local building code requirements.
• California State Fire Marshal Listing No. 03225-0935:101.
• City of New York. MEA # 366-03-M.
Model 1200
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AIRFOIL BLADE FIRE DAMPERS
E
MULTI-BLADE FIRE DAMPERS
E14
Model Series 1200 dampers with duct heights less than 8" (203) require a type 'B' sleeve enclosure (Model
1202). Units less than 8" (203) in width only, or in both width and height, require a Type 'C' enclosure (Model
1203).
Min. Duct Size: 8" x 4" (203 x 102)
(Overall damper height is 8" (203)).
Max. Duct Size: Single Section
Vertical mount: 36" x 7 1/2" (914 x 191).
Horizontal mount: 32" x 7 1/2" (813 x 191).
Multiple Section Assembly Model
Vertical or
Horizontal mount: 144" x 7 1/2" (3658 x 191).
Min. Duct Size: Vertical or Horizontal mount:
4" (102) diameter.
(Overall damper size is 8" x 8"
(203 x 203) min.).
Max. Duct Size: Single Section
Vertical mount: 34" (864) diameter.
Horizontal mount: 30" (762) diameter.
Multiple Section Assembly
Vertical or
Horizontal mount: 94" (2388) diameter.
Min. Duct Size: Vertical or Horizontal mount:
4" x 4" (102 x 102).
(Overall damper size is 8" x 8"
(203 x 203) min.).
Max. Duct Size: Single Section
Vertical mount: 34" x 46" (864 x 1168).
Horizontal mount: 30" x 46" (762 x 1168).
Multiple Section Assembly Model 1203
Vertical or
Horizontal mount: 142" x 94" (3658 x 2388).
8" (203)
SLEEVE
DAMPER
16" (406) STANDARD
'B'
ENCLOSURE
BOTH ENDS
5" (127)
CCW
TO
OPEN
'C' ENCLOSURE BOTH ENDS
D –
1/8" (3)
(D –
1/4" (6)
OVER
36"
(914))
8" (203)
STANDARD
SLEEVE
DAMPER
16" (406) STANDARD
5" (127)
CCW
TO
OPEN
8"
(203)
OVERALL
H =
NOM.
DUCT
SIZE
W = NOM. DUCT SIZE
D + 2" (51)
D =
NOM.
DUCT
DIA.
D
+
2"
(51)
W + 2" (51)
W
H
H
+
2"
(51)
W = NOM. DUCT SIZE
W + 2" (51)
H =
NOM.
DUCT
SIZE
H
+
2"
(51)
8" (203)
SLEEVE
DAMPER
SLEEVE = NOMINAL DUCT SIZE
16" (406) STANDARD
5" (127)
1 7/8" (48) MAX.
CCW
TO
OPEN
WITH TYPE A SLEEVE: MODEL 1201 TYPE B SLEEVE ENCLOSURE: MODEL 1202
STYLE CR : FOR ROUND DUCT STYLE CO : FOR OVAL DUCT STYLE CSR : FOR SQUARE OR
RECTANGULAR DUCT
Standard factory sleeve
(caulked to UL
requirements) 16" long x
20 ga. (406 x 1.0).
Available up to 36" (914)
dependent upon wall
thickness and 10
through 20 ga. (3.5 - 1.0).
*or 8"
(203) min.
*
*or 8" (203) min.
**
TYPE C SLEEVE ENCLOSURES:
MODEL 1203
**
*
Wall Minimum
Thickness Sleeve
Length
4 (102) 16 (406)
8 (203) 20 (508)
12 (305) 24 (610)
16 (406) 28 (711)
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AIRFOIL BLADE FIRE DAMPERS
E
MULTI-BLADE FIRE DAMPERS
E15
MODELS: 1200/1201/1202/1203
VARIABLES/ACCESSORIES
VARIABLES: CODE DESCRIPTION
MOUNTING: V Vertical Mount (wall)
H Horizontal Mount (floor)
CLOSURE DEVICE: FL Fusible Link
CLOSURE TEMP.: 165 165°F (74°C)
212 212°F (100°C)
SLEEVE LENGTH: Specify Sleeve Length: 12" (305) to 36" (914)
SLEEVE GAUGE: 20 G 20 ga. (1.0 mm)
18 G 18 ga. (1.2 mm)
16 G 16 ga. (1.6 mm)
14 G 14 ga. (2.0 mm)
10 G 10 ga. (3.5 mm)
IF MODEL 1203 IS SELECTED, CR Round Type C Transitions
SPECIFY TYPE OF TRANSITION: CO Oval Type C Transitions
CSR Square/Rect. Type C Transitions
DAMPER LOCATION L8 8" (204) from Sleeve End
IN SLEEVE: L0 Specify Dimension from Sleeve End
OPTIONAL JAMB SEALS: JSM Flexible Metal Jamb Seals
ACCESSORIES: CODE DESCRIPTION
POSITION INDICATOR: 300 MLS-300 Switch Pack
SIDE MTG. PLATE: SMP Side Mounting Plate (required for
mounting of MLS-300 without sleeve)
RETAINING ANGLES: QS1 One "Quick Set" retaining angle
QS2 Set of two "Quick Set" retaining angles
FLANGED SLEEVE: TDF1 TDF Flange on One End
(MODELS 1201 AND 1201-3 ONLY) TDF2 TDF Flange on Both Ends
Tested per AMCA standard 500-D, Fig. 5.3.
PERFORMANCE DATA:
.40
(100.0)
.02
(5.0)
.01
(2.5)
.03
(7.5)
.04
(10.0)
.05
(12.5)
.06
(15.0)
.08
(20.0
.20
(50.0)
.5
(125.00)
.30
(75.0)
.1
(25.0)
300
(1.50) 3000 (15.24) 4000 (20.32)
700
(3.56)
500
(2.54) 2000 (10.16)
1000
(5.08)
Face AreaVelocity in feet per minute (m/s)
Static Pressure Drop in inches w.g. (Pa)
SIZE 24" x 24" (610 x 610) SIZE 36" x 36" (914 x 914)
PRESSURE DROP (damper fully open)
Imperial figures shown.
To convert to SI
(metric) system:
Multiply:
CFM x .4719 = liters per
second
inches w.g. x .2486
= kilopascals
fpm x .00508 = meters
per second
cfm per sq. ft. x 5.08 =
liters/second per
sq. meter.
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AIRFOIL BLADE FIRE DAMPERS
E
MULTI-BLADE FIRE DAMPERS
E16
HOW TO SPECIFY OR TO ORDER
MULTI-BLADE FIRE DAMPERS
MODELS: 1200/1201/1202/1203
HOW TO ORDER:
Select model number and size, then select from each variable as applicable. Choose accessories as desired.
See previous page for description of variables and accessories.
Notes: 1. * Standard sleeve is 16" (406) long (suitable for 4" (102) thick wall) x 20 ga. (1.0).
MODEL
SIZE
(W X H)
MOUNTING
CLOSURE DEVICE
CLOSURE TEMP.
SLEEVE LENGTH
*
SPECIFY LENGTH
SLEEVE GAUGE
*
JAMB SEALS
(OPTIONAL)
DAMPER LOCATION
IN SLEEVE
TRANSITION TYPE
(MODEL 1203
ONLY)
1200 ie: 36" x 24" V FL 165 20G CR L8 NONE 300
1201 or H 212 18G CO L0 JSM SMP
1202 18" dia. 16G CSR QS1
1203 14G QS2
10G TDF1
TDF2
ACCESSORIES
SUGGESTED SPECIFICATION:
Provide and install, as shown on plans and/or schedules, multi-blade fire dampers, as manufactured by Nailor Industries, meeting
or exceeding the following criteria: Frame shall be constructed of 16 ga. (1.6) galvanized steel hat channel with mitered corners
reinforced with die-formed corner gussets for strength. Blades shall be 14 ga. (2.0) equivalent galvanized steel formed double
skin, airfoil design, on 5 1/2" (140) centers. Dampers shall be of opposed blade configuration with an interlocking blade design
that provides complete flame and smoke seal under fire conditions at an elevated temperature of 2000°F (1093°C) when in closed
position. Blade axles shall be plated steel, double bolted at each end of blade to provide positive locking connection. Hex or
square friction-fit, or press-fit axles are not acceptable. Bearings shall be self-lubricating oilite bronze type. Blade linkage shall be
zero-maintenance, concealed in frame, out of airstream.
Fire dampers shall meet the requirements of NFPA 90A and shall be manufactured, tested and labeled in accordance with UL
555 Safety Standard for Fire Dampers – Sixth Edition, June 1999 and shall have a 1 1/2 hour fire resistance rating.
Each fire damper shall bear a UL label verifying fire resistance rating in addition to the intended mounting position.
Each fire damper shall be complete with a (specifier select one) 165°F (74°C) or 212°F (100°C) UL Listed fusible link that will
cause the damper to close and lock in closed position by means of an over center/knee lock linkage for assured closure. Fire
dampers shall each include a steel sleeve of appropriate length/gauge as field verified by contractor, and retaining angles,
supplied by damper manufacturer to ensure proper installation in accordance with damper manufacturer’s instructions. Each
damper shall be supplied with an internal manual quadrant(s) for setting and locking of blades in desired position. Contractor shall
provide and install an access door at each fire damper, of appropriate size to allow for inspection, testing and fusible link
replacement. Information submitted for approval shall include independent pressure drop data and confirmation of UL
qualifications in addition to manufacturer’s installation instructions. Each shipment of fire dampers shall include same installation
instructions. Standard of acceptance: Nailor Industries Model Series 1200.
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• VEE-GROOVE BLADE
• UL 555 CLASSIFIED
DYNAMIC FIRE DAMPER
• 1 1/2 HOUR LABEL
The Nailor Series D1250 multi-blade fire damper, with sturdy vee-groove style blades and rugged mitered corner hat channel frame
design that virtually eliminates racking, provides 1 1/2 hour UL labeled fire protection suitable for use where ductwork penetrates
a wall or floor with a fire resistance rating of up to 2 hours. The over-center/knee lock with high torque spring fusible link assures
fail-safe closure during fire conditions. The D1250 series is also approved for use in static or dynamic HVAC system designs.
Available with factory fitted sleeve Model D1251, and choice of transition styles, the D1250 Series is supplied as standard with an
internal hand locking quadrant, and is a versatile and economical performer suitable for use in the majority of today's applications.
MODELS:
D1250 TYPE A
D1251 TYPE A IN SLEEVE
D1252 TYPE B
D1253 TYPE C
Model D1250
VEE-GROOVE BLADE FIRE DAMPERS
E17
E
MULTI-BLADE FIRE DAMPERS
5"
(127)
W = NOMINAL DUCT SIZE - 1/4" (6)
H = NOMINAL DUCT SIZE - 1/4" (6)
QUALIFICATIONS:
• UL 555 CLASSIFIED DYNAMIC FIRE DAMPER • 1 1/2 hr. Label.
(File # R9492).
• CAN/ULC-S112 CLASSIFIED FIRE DAMPER (File # R19569).
• California State Fire Marshal: Fire Damper Listing No. 3225-0935:101
• City of New York Board of Standards and Appeals. Cal. No.
460-88-SA.
• Meets NFPA 80, 90A and 101 as well as IBC and NBC (Canada)
and associated building code requirements.
• Maximum velocity 2000 fpm @ 4" w.g. (10 m/s @ 1 kPa) (up to
3000 fpm with size limitations).
CONSTRUCTION DETAILS:
FRAME: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) galvanized
steel hat channel.
BLADES: 6" (152) wide on 5 1/2" (140) centers. 16 ga. (1.6)
galv. steel vee-groove design. Parallel action.
LINKAGE: Concealed in frame. 12 ga. (2.7) plated steel.
BEARINGS: 1/2" (13) dia. self-lubricating oilite bronze.
AXLES: 1/2" (13) dia. plated steel double bolted to blades.
JACKSHAFT: 1/2" (13) dia. cadmium plated steel.
Internal locking quadrant is factory installed.
FUSIBLE LINK: 165°F (74°C) standard. 212°F (100°C) available.
MINIMUM SIZE: Vertical or Horizontal mount: 8" x 8" (203 x 203).
MAXIMUM SIZE: Single Section
Vertical mount: 36" x 48" (914 x 1219).
Horizontal mount: 30" x 40" (762 x 1016).
Multiple Section Assembly
Vertical mount: 72" x 48" (1829 x 1219) or
36" x 96" (914 x 2438).
Horizontal mount: 60" x 40" (1524 x 1016) or
30" x 80" (762 x 2032).
TYPE A: MODEL D1250
TYPE A WITH SLEEVE: MODEL D1251
Wall Minimum
Thickness Sleeve
Length
4 (102) 16 (406)
8 (203) 20 (508)
12 (305) 24 (610)
16 (406) 28 (711)
8" (203)
SLEEVE
DAMPER
SLEEVE = NOMINAL DUCT SIZE
16" (406) STANDARD
5" (127)
1 3/4" (44) MAX.
CCW
TO
OPEN
Standard factory sleeve (caulked to UL requirements) 16" long x 20 ga.
(406 x 1.0). Available up to 36" (914) dependent upon wall thickness.
Revised April 15, 2005
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E18
VEE-GROOVE BLADE FIRE DAMPERS
Min. Duct Size: Vertical or Horizontal mount:
4" x 4" (102 x 102).
(Overall damper size is 8" x 8" [203 x 203] min.).
Max. Duct Size: Single Section
Vertical mount: 34" x 46" (864 x 1168).
Horizontal mount: 28" x 38" (711 x 965).
Multiple Section Assembly
Vertical mount: 70" x 46" (1176 x 1168)
or 34" x 94" (864 x 2388).
Horizontal mount: 58" x 38" (1473 x 965)
or 28" x 78" (711 x 1981).
Model Series D1250 dampers with duct heights less than 8" (203) require a Type 'B' sleeve enclosure (Model D1252).
Units less than 8" (203) in width only, or in both width and height, require a Type 'C' enclosure (Model D1253).
Min. Duct Size: 8" x 4" (203 x 102).
(Overall damper H is 8").
Max. Duct Size: Single Section
Vertical mount: 36" x 7 1/2" (914 x 191).
Horizontal mount: 30" x 7 1/2" (762 x 191).
Multiple Section Assembly
Vertical mount: 72" x 7 1/2" (1829 x 191).
Horizontal mount: 60" x 7 1/2" (1524 x 191).
Min. Duct Size: Vertical or Horizontal mount:
4" (102) diameter.
(Overall damper size is 8" x 8" [203 x 203] min.).
Max. Duct Size: Single Section
Vertical mount: 34" (864) diameter.
Horizontal mount: 28" (711) diameter.
Multiple Section Assembly
Vertical mount: 46" (1168) diameter.
Horizontal mount: 38" (965) diameter.
8"
(203)
OVERALL
H =
NOM.
DUCT
SIZE
W = NOM. DUCT SIZE
D + 2" (51)
D =
NOM.
DUCT
DIA.
D
+
2"
(51)
SLEEVE
DAMPER
CCW
TO
OPEN
'C' ENCLOSURE BOTH ENDS
D –
1/8" (3)
(D –
1/4" (6)
OVER
36"
(914))
8" (203)
16" (406) STANDARD
5" (127)
W + 2" (51)
H =
NOM.
DUCT
SIZE
H
+
2"
(51)
W = NOM. DUCT SIZE
W + 2" (51)
W
H
H
+
2"
(51)
TYPE B SLEEVE ENCLOSURE
MODEL: D1252
STYLE CR: FOR ROUND DUCT STYLE CO: FOR OVAL DUCT
STYLE CSR : FOR SQUARE
or RECTANGULAR DUCT
TYPE C SLEEVE ENCLOSURES
MODEL: D1253
TYPE C SIDE VIEW
300 400 600 800 15001000 400030002000
.40
.02
.03
.04
.05
.06
.07
.08
.09
.20
.50
.60
.70
.80
.90
1.0
.30
.10
.25
.15
500
.015
.01
5000
Static Pressure Drop in inchesw.g.
Air Velocity in Feet Per Minute
36" x 36" (914 x 914)
24" x 24" (610 x 610)
12" x 12" (305 x 305)
Tested per AMCA standard 500-D, Fig. 5.3.
PERFORMANCE DATA: PRESSURE DROP (damper fully open)
*
*
*
*
* or 8" (203) min.
* or 8" (203) min.
*
*
Imperial figures shown.
To convert to SI
(metric) system:
Multiply:
CFM x .4719 = liters per
second
inches w.g. x .2486
= kilopascals
fpm x .00508 = meters
per second
cfm per sq. ft. x 5.08 =
liters/second per
sq. meter.
E
MULTI-BLADE FIRE DAMPERS
E18 Revised September 20, 2004
8" (203)
SLEEVE
DAMPER
16" (406) STANDARD
'B'
ENCLOSURE
BOTH ENDS
5" (127)
CCW
TO
OPEN
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MULTI-BLADE FIRE DAMPERS
MODELS: D1250/D1251/D1252/D1253
VARIABLES/ACCESSORIES
VARIABLES: CODE DESCRIPTION
MOUNTING: V Vertical Mount (wall)
H Horizontal Mount (floor)
MAXIMUM VELOCITY/ 24 2000 fpm @ 4" w.g.
PRESSURE RATING: 34 3000 fpm @ 4" w.g.
CLOSURE DEVICE: FL Fusible Link
CLOSURE TEMP.: 165 165°F (74°C)
212 212°F (100°C)
SLEEVE LENGTH: Specify Sleeve Length: 12" (305) to 36" (914)
SLEEVE GAUGE: 20 G 20 ga. (1.0 mm)
18 G 18 ga. (1.2 mm)
16 G 16 ga. (1.6 mm)
14 G 14 ga. (2.0 mm)
10 G 10 ga. (3.5 mm)
IF MODEL D1253 IS SELECTED, CR Round Type C Transitions
SPECIFY TYPE OF TRANSITION: CO Oval Type C Transitions
CSR Square/Rect. Type C Transitions
DAMPER LOCATION L8 8" (204) from Sleeve End
IN SLEEVE: L0 Specify Dimension from Sleeve End
OPTIONAL JAMB SEALS: JSM Flexible Metal Jamb Seals
OPTIONAL BLADE SEALS: BPV PVC Blade Seals
ACCESSORIES: CODE DESCRIPTION
POSITION INDICATOR: 300 MLS-300 Switch Pack
SIDE MTG. PLATE: SMP Side Mounting Plate (required for
mounting of MLS-300 without sleeve)
RETAINING ANGLES: QS1 One "Quick Set" retaining angle
QS2 Set of two "Quick Set" retaining angles
FLANGED SLEEVE: TDF1 TDF Flange on One End
(MODEL D1251 ONLY) TDF2 TDF Flange on Both Ends
E19
VEE-GROOVE BLADE FIRE DAMPERS
E
MULTI-BLADE FIRE DAMPERS
E19
Revised September 23, 2004
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HOW TO ORDER:
Select model number and size, then select from each variable as applicable. Choose accessories as desired.
See previous page for description of variables and accessories.
Notes: 1. * Standard sleeve is 16" (406) long (suitable for 4" (102) thick wall) x 20 ga. (1.0).
HOW TO SPECIFY OR TO ORDER
E20
VEE-GROOVE BLADE FIRE DAMPERS
MULTI-BLADE FIRE DAMPERS
MODELS: D1250/D1251/D1252/D1253
MODEL
SIZE
(W X H)
MOUNTING
CLOSURE DEVICE
CLOSURE TEMP.
SLEEVE LENGTH
*
SPECIFY LENGTH
SLEEVE GAUGE
*
JAMB SEALS
(OPTIONAL)
BLADE SEALS
(OPTIONAL)
DAMPER LOCATION
IN SLEEVE
TRANSITION TYPE
(MODEL 1253
ONLY)
D1250 ie: 36" x 24" V 24 FL 165 20G CR L8 NONE NONE 300D
D1251 or H 34 212 18G CO L0 JSM BPV SMP
D1252 18" dia. 16G CSR QS1
D1253 14G QS2
10G TDF1
TDF2
ACCESSORIES
E
MULTI-BLADE FIRE DAMPERS
E20 Revised September 23, 2004
SUGGESTED SPECIFICATION:
Provide and install, as shown on plans and/or schedules, multi-blade Dynamic Fire Dampers, as manufactured by Nailor
Industries, meeting or exceeding the following criteria: Frame shall be constructed of 16 ga. (1.6) galvanized steel hat channel
with mitered corners reinforced with die-formed corner gussets for strength. Blades shall be of vee-groove design 16 ga. (1.6)
galvanized steel on 5 1/2" (140) centers and shall be parallel configuration. Blade axles shall be 1/2" (13) dia. plated steel,
double bolted at each end of blade to ensure positive locking connection. Hex or square friction-fit, or press-fit axles are not
acceptable. Bearings shall be self-lubricating oilite bronze type. Blade linkage shall be zero-maintenance, concealed in frame,
out of airstream.
Fire dampers shall meet the requirements of NFPA 90A and shall be manufactured, tested and labeled in accordance with UL
555 Safety Standard for Fire Dampers – Sixth Edition, June 1999, including Dynamic Closure Test. Dampers shall be classified
for dynamic closure against an airflow velocity of 2000 fpm (10.16 m/s) or 3000 fpm (15.24 m/s) (specifier select one) at 4"
w.g. (1 kPa) static pressure differential (across closed damper).
Each fire damper shall bear a UL 1 1/2 hour fire resistance rating label, in addition to label verifying the airflow and closure
pressure ratings as established by the Dynamic Closure Test. Each fire damper shall also be marked with the words "For use
in dynamic systems". Dampers marked "For use in static systems only" are not acceptable.
Each fire damper shall be complete with a (specifier select one) 165°F (74°C) or 212°F (100°C) UL Listed fusible link that
will cause the damper to close and lock in closed position by means of an over-center/knee lock linkage for assured closure.
Fire dampers shall each include a steel sleeve of appropriate length/gauge as field verified by contractor, and retaining angles,
supplied by damper manufacturer to ensure proper installation in accordance with damper manufacturer’s instructions. Each
damper shall be supplied with an internal manual quadrant(s) for setting and locking of blades in desired position. Contractor
shall provide and install an access door at each fire damper, of appropriate size to allow for inspection, testing and fusible link
replacement. Information submitted for approval shall include independent pressure drop data and confirmation of UL
qualifications in addition to manufacturer’s installation instructions. Each shipment of fire dampers shall include same
installation instructions. Standard of acceptance: Nailor Industries Model Series D1250.
MAX. VELOCITY/
PRESSURE RATING
Specification Text File
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