Greenheck DFD-150X series Specification Sheet page 3

DFD-150X Type B
Dampers larger than maximum single section size are supplied in 2 or more sections of equal size.
The following chart and illustrations show minimum and maximum damper section size and assembly configurations for
multi-section dampers.
1 Maximum Single Section Dimensions
32 in. (813mm) max.
36 in. (914mm) max.
2 MULTI-SECTION LIMITATIONS
Maximum height is 45 in. (1143mm) when width is 72 in.
(1829mm) or less.
45 in. (1143mm) max.
72 in. (1829mm) max.
Type B Overall
Damper Dimensions
H* O*
6 (152) 8 (203)
7 (178) 9 (229)
8 (203) 10 (254)
9 (229) 11 (279)
10 (254) 12 (305)
11 (279) 13 (330)
12 (305) 14 (356)
13 (330) 15 (381)
14 (356) 16 (406)
15 (381) 18 (457)
16 (406) 19 (483)
17 (432) 20 (508)
18 (457) 21 (533)
19 (483) 22 (559)
20 (508) 23(584)
21 (533) 24 (610)
22 (559) 26 (660)
23 (584) 27 (686)
24 (610) 28 (711)
25 (635) 29 (737)
26 (660) 30 (762)
27 (686) 31 (787)
28 (711) 32 (813)
29 (737) 33 (838)
30 (762) 34 (864)
31(787) 35 (889)
* These dimensions are furnished approximately 1/4 in. (6mm)
undersize. (All 'H' dimensions larger than single section height are
two sections high. Refer to chart. The top section is a Type B and
the bottom sections are Type A).
H* O*
W*
H* O*
32(813) 36 (914)
33 (838) 36 (914)
34 (864) 37 (940)
35 (889) 38 (965)
36 (914) 39 (991)
37 (940) 40 (1016)
38 (965) 41 (1041)
39 (991) 42 (1067)
40 (1016) 43 (1092)
41 (1041) 44 (1118)
42 (1067) 45 (1143)
43 (1092) 46 (1168)
44 (1118) 47 (1194)
45 (1143) 48 (1219)
46 (1168) 50 (1270)
47 (1194) 51 (1295)
48 (1219) 52 (1321)
49 (1245) 53 (1346)
50 (1270) 54 (1372)
51 (1295) 55 (1397)
52 (1321) 56 (1422)
53 (1346) 57 (1448)
54 (1372) 58 (1473)
55 (1397) 59 (1397)
56 (1422) 60 (1524)