IN-LINE BACK BLAST DAMPER* |
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DIA. (D) IN |
PART NO. |
LENGTH IN |
GAUGE |
3” |
SAI-219-03 |
17.5 |
18 |
4" |
SAI-219-04 |
18.5 |
18 |
5" |
SAI-219-05 |
19.5 |
18 |
6" |
SAI-219-06 |
20.5 |
18 |
7" |
SAI-219-07 |
21.5 |
18 |
8" |
SAI-219-08 |
22.5 |
18 |
9" |
SAI-219-09 |
23.5 |
18 |
10" |
SAI-219-10 |
24.5 |
18 |
11” |
SAI-219-11 |
25.5 |
18 |
12" |
SAI-219-12 |
26.5 |
18 |
13” |
SAI-219-13 |
32.5 |
18 |
14" |
SAI-219-14 |
33.5 |
18 |
15” |
SAI-219-15 |
34.5 |
18 |
16" |
SAI-219-16 |
43.5 |
18 |
17” |
SAI-219-17 |
44.5 |
18 |
18" |
SAI-219-18 |
45.5 |
18 |
20" |
SAI-219-20 |
47.5 |
16 |
22" |
SAI-219-22 |
49.5 |
16 |
24" |
SAI-219-24 |
51.5 |
16 |
26" |
SAI-219-26 |
57.5 |
16 |
28" |
SAI-219-28 |
59.5 |
16 |
30" |
SAI-219-30 |
61.5 |
16 |
32" |
SAI-219-32 |
63.5 |
16 |
34” |
SAI-219-34 |
65.5 |
16 |
BACK BLAST DAMPER![]() ![]() Used to reduce backward airflow in the line. Can be mounted vertically if airflow is upward: should be specified when ordered. |