Products 
Heaters Air Duct Heaters Series DM Tubular
Heaters Air Duct Heaters Series DM Tubular
Series DM Tubular Air Duct Heaters feature 334 stainless steel elements, stainless steel element support, stainless steel support rods, painted flange, NEMA 1 terminal enclosure, and replaceable element design.
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Recommended Operating Conditions
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Air Speed
(ft. per second) |
Maximum
Operating Temp. |
|
6
|
650°F
|
|
9
|
700°F
|
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16
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750°F
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Moderate temperature (750° F max.)
Features:
- 20 watts per sq. inch on sheath
- 334 stainless steel elements - 1500°F max. sheath temperature
- Stainless steel element support
- Stainless steel support rods
- Painted steel flange
- NEMA 1 terminal enclosure
- Replaceable element design
- 1" insulation in terminal housing
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Volts
3-Phase |
#
Circuits |
KW
|
A
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B
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C
|
D
|
E
|
G
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Wt.
(lbs.) |
#
Elems. |
Catalog #
|
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240
480 |
1
1 |
6
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27 1⁄8
|
20 3⁄8
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3 5⁄8
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5 5⁄8
|
10
|
2 1⁄2
|
20
|
6
|
DM6-6-3
DM6-6-5 |
|
240
480 |
1
1 |
12
|
27 1⁄8
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20 3⁄8
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5 5⁄8
|
7 5⁄8
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10
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3 1⁄2
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26
|
12
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DM12-12-3
DM12-12-5 |
|
240
480 |
1
1 |
18
|
27 1⁄8
|
20 3⁄8
|
7 5⁄8
|
9 5⁄8
|
12
|
3
|
35
|
18
|
DM18-18-3
DM18-18-5 |
|
240
480 |
2
1 |
24
|
27 1⁄8
|
20 3⁄8
|
9 5⁄8
|
11 5⁄8
|
14
|
2 3⁄4
|
42
|
24
|
DM24-24-3
DM24-24-5 |
|
240
480 |
2
1 |
30
|
27 1⁄8
|
20 3⁄8
|
11 5⁄8
|
13 5⁄8
|
14
|
3 1⁄4
|
50
|
30
|
DM30-30-3
DM30-30-5 |
|
240
480 |
2
1 |
36
|
27 1⁄8
|
20 3⁄8
|
13 5⁄8
|
15 5⁄8
|
14
|
3 3⁄4
|
60
|
36
|
DM36-36-3
DM36-36-5 |
|
240
480 |
2
1 |
42
|
27 1⁄8
|
20 3⁄8
|
15 5⁄8
|
17 5⁄8
|
14
|
4 1⁄4
|
70
|
42
|
DM42-42-3
DM42-42-5 |
|
240
480 |
4
2 |
48
|
27 1⁄8
|
20 3⁄8
|
17 5⁄8
|
19 5⁄8
|
14
|
4 3⁄4
|
80
|
48
|
DM48-48-3
DM48-48-5 |
|
240
480 |
3
3 |
54
|
27 1⁄8
|
20 3⁄8
|
19 5⁄8
|
21 5⁄8
|
14
|
5 1⁄4
|
90
|
54
|
DM54-54-3
DM54-54-5 |
|
240
480 |
4
2 |
60
|
27 1⁄8
|
20 3⁄8
|
21 5⁄8
|
23 5⁄8
|
14
|
5 3⁄4
|
97
|
60
|
DM60-60-3
DM60-60-5 |
Item Menu
Certifications
Our heaters are currently UL recognized, CSA compliant and CE approved. We are ASME and National Board certified for Section VIII Div 1 Pressure Vessel Welding.
Additionally, we have built heaters to Military standards for the Army, Navy, Coast Guard and DCSC. We have designed and built systems to Canadian pressure vessel codes CRN, ABSA & TSSA. We also meet certain NSF, NACE and API standards.
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