Transcript
DAMPERS
BDD BACKDRAFT DAMPERS
Custom Fan SolutionsTM
•
Low air leakage design
•
Aluminum butterfly damper blades
•
Stainless steel collar available - consult factory
•
Heavy gauge steel housing
•
Suitable for supply or exhaust applications
•
Designed for vertical or horizontal mount
•
Spring loaded dampers in 4”, 5”, 6”, 8”, 10” & 12”
•
Gravity operated dampers in 7”, 14” & 16”
BDD BACKDRAFT DAMPERS SPRING LOADED DAMPERS • • • • • • • •
Neoprene damper seal to minimize air leakage Steel housing, aluminum butterfly damper blades Gasket designed to withstand temperatures from -22 F to 180 F Requires from 0.04 to 0.08 in. wg pressure to open Simple installation in any position - entire assembly inserts into duct Exterior foam gasket assures a tight seal against duct 4”, 5”, 6” & 8” sizes include stamped metal sleeve with center pin design 10” & 12” sizes include rolled metal sleeve with center post design
GRAVITY OPERATED DAMPERS • • • • • •
Low air leakage design Galvanized steel housing, aluminum butterfly damper blades Gravity operated closure Install in horizontal or vertical (upblast only) position Suitable for supply or exhaust applications Available in 7”, 14” & 16” sizes
Note: BDD backdraft dampers are not recommended for clothes dryer exhaust.
2200
2.0
2000
4
20
BDD125
2.0
2.5
5
20
BDD150
2.5
3.0
6
20
BDD200
2.8
3.8
8
20
BDD250
4.8
6.0
10
20
BDD300
6.3
6.8
12
20
1800 1600 1400
7.0
-
7
28
BDD355
12.0
-
14
24
BDD400
14.0
-
16
22
00
1000
BDD250
800 600
BDD175
400
0
BDD150 BDD125
00
BDD2
200
*Specifications may change without notice.
SPRING LOADED DAMPERS 4”, 5“, 6” & 8”
BD
1200
GRAVITY OPERATED DAMPERS BDD175
D3
55
1.8
AIRFLOW (CFM)
BDD100
D3
Gauge
BD
B
SPRING LOADED DAMPERS
400
A
2400
BDD
MODEL
C (Nominal)
AIRFLOW CHARACTERISTICS
2600
DIMENSIONS IN INCHES*
0
0.05
SPRING LOADED DAMPERS 10” & 12”
0.10
0.15
PRESSURE (IN. WG)
0.20
BDD100 0.25
0.30
GRAVITY OPERATED DAMPERS 7”, 14“ & 16” A
C
C C
A B
A B
USA - Continental Fan Manufacturing Inc. Inc
Canada - Continental Fan Canada Inc.
203 Eggert Road, Buffalo, NY 14215 T: 716-842-0670 • 800-779-4021 • F: 716-842-0611
12-205 Matheson Blvd E, Mississauga, ON L4Z 3E3 T: 905-890-6192 • 800-779-4021 • F: 905-890-6193
BDD BACKDRAFT DAMPERS
BDD-1110
www.continentalfan.com
