14
L
D
W
ROUND LOW PRESSURE DAMPER
WIDTH (W)
6"
7"
8"
9"
10"
12"
14"
16"
SIZE DIAMETER (D) LENGTH (L)
10"
10"
10"
11"
12"
14"
16"
18"
9"
10"
11"
12"
13"
15"
17"
18 1/2"
TR06
TR07
TR08
TR09
TR10
TR12
TR14
TR16
PART #
6"
7"
8"
9"
10"
12"
14"
16"
ROUND MEDIUM PRESSURE DAMPER
WIDTH (W)
6"
8"
10"
12"
14"
16"
18"
SIZE DIAMETER (D) LENGTH (L)
10"
10"
12"
14"
16"
18"
20"
9"
11"
13"
15"
17"
19"
21"
PART #
STMPD06
STMPD08
STMPD10
STMPD12
STMPD14
STMPD16
STMPD18
6"
8"
10"
12"
14"
16"
18"
Nominal
CFM
Duct
Diameter
Duct Velocity
FPM
Damper
P " WC
∆
10"
12"
14"
16"
6"
8"
7"
9"
410
660
1450
1000
110
250
160
320
750
850
1070
925
540
700
600
725
.015
.022
.036
.035
.014
.015
.014
.015
18"
2000
1100
TYPICAL ROUND CAPACITIES*
* These air quantities were derived from a duct sizing chart .1” friction loss per 100’ of duct. All CFMs listed are
approximate. For accurate selection use duct sizing table or device.
ROUND LOW & MEDIUM PRESSURE DAMPER SIZES
ZONE DAMPERS
5"
10"
7"
TR05
5"
4"
10"
6"
TR04
4"
5"
70
525
.013
4"
40
450
.013
.036
