SCHEDULE TYPE:
PROJECT:
ENGINEER:
CONTRACTOR:
DATE
B SERIES
SUPERSEDES DRAWING NO.
5 - 7 - 12
1200
3 - 21 - 11
1210SS-1
STAINLESS STEEL SMOKE DAMPER
AIRFOIL BLADE • HIGH PERFORMANCE
ULTRA-LOW LEAKAGE • LOW PRESSURE DROP
MODELS: 1210SS AND 1211SS (TYPE A)
Nailor Industries Inc. reserves the right to change any information concerning product or pricing without notice.
For installation instructions, see IOM-SDINST.
Dimensions are in inches (mm).
The 1210SS Series dampers are ideal for high humidity, mildly
corrosive or, with optional Type 316 construction, more severe
environments where building codes require a leakage rated smoke
damper as part of a static smoke control or dynamic smoke
management system.
The 1210SS Series has been especially designed and tested to
offer premium performance. The 1210SS Series provides the
lowest leakage class available and is qualified for vertical or
horizontal installation with airflow in either direction. Airfoil blade
design and elimination of blade sills, top and bottom, provide
lowest pressure drop. Unique inter-locking double skin blade
design eliminates combustible blade seals and provides flame and
smoke seal under fire conditions.
STANDARD SPECIFICATION:
Frame:
5" x 7/8" x 16 ga. (127 x 22 x 1.6) stainless steel
hat channel.
Blades:
14 ga. (2.0) equivalent stainless steel formed airfoil on
5 1/2" (140) centers. Opposed action.
Linkage:
Concealed in frame. 12 ga. (2.7) stainless steel.
Bearings:
1/ 2" (13) dia. sintered stainless steel.
Axles:
1/ 2" (13) dia. stainless steel double bolted to blades.
Jackshaft:
1/2" (13) dia. stainless steel.
Jamb Seals:
Cambered stainless steel.
Sizes (Damper W x H):
Note:
Dampers with duct heights less than 8" (203) require a Type ‘B’
sleeve enclosure (Model 1212SS). Units less than 8" (203) in width only, or
in both width and height, require a Type ‘C’ enclosure (Model 1213SS).
BASE MODEL SELECTION:
❑
1210SS
With side actuator mounting plate
❑
1211SS
Standard factory sleeve (caulked to UL requirements)
16" long x 20 ga. (406 x 1.0) (18 ga. for dampers over
84" [2134] in width).
❑
1211SS
Non-standard sleeve.
Specify _______ length _____ ga.
Available up to 36" (914) in length and 10 through
20 ga. (3.5 through 1.0).
7 3/4"
(197) MAX.
10 3/4"
(273) MAX.
JACKSHAFT
3 15/16"
(100)
CONSTRUCTION TYPE:
❑
304
Type 304 Stainless Steel construction (Standard).
❑
316
Type 316 Stainless Steel construction (Optional).
LEAKAGE CLASS/ELEVATED TEMPERATURE:
❑
I
❑
II @ 250°F
DYNAMIC VELOCITY/PRESSURE RATING:
24
2000 fpm @ 4" w.g.
ACTUATOR SELECTION:
❑
Electric
❑
Pneumatic
ACTUATOR LOCATION:
❑
External
(std.)
❑
Internal
(in the airstream)
ACTUATOR FAIL POSITION:
❑
Normally Closed
(std.)
❑
Normally Open
OPTIONS:
❑
MLS-300
Position indicator switch pack
CCW
TO
OPEN
5"
(127)
W = NOMINAL
DUCT
SIZE - 1/4"
(6)
H = NOMINAL
DUCT
SIZE - 1/4" (6)
QUALIFICATIONS:
• UL 555S CLASSIFIED SMOKE DAMPER (File # R9492)
Leakage Class I or II at 250°F elevated temperature.
• Meets NFPA 90A, 92A, 92B, 101 and 105 as well as IBC and
NBC (Canada) Building Code requirements.
• California State Fire Marshal Listing No. 03230-0935:107.
• City of New York MEA# 366-03-M.
• Maximum velocity: 2000 fpm@ 4" w.g.
Velocity/
Pressure
Rating
Elevated
Temp.
°F
Minimum
Maximum
Single Section
Single Section
Multiple Section
Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal
24
250
8" x 8" (203 x 203)
36" x 48"
(914 x 1219)
144" x 96"
(3658 x 2438)
