Products
Heaters
Air Duct Heaters
Series DL Tubular
Heaters
Air Duct Heaters
Series DL Tubular
Series DL Tubular Air Duct Heaters feature stainless steel elements, stainless steel element support, painted steel support rods & flange, NEMA 1 terminal enclosure, and replaceable element design.
Low temperature (500° F max.)
Low cost
Features:
- 30 watts per sq. inch on sheath
- Stainless steel elements - 1200°F max. sheath temperature
- Stainless steel element support
- Painted steel support rods & flange
- NEMA 1 terminal enclosure
- Replaceable element design CSA certified with NEMA 1 Housing
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Recommended Operating Conditions
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Air Speed
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Max. Operating Temp.
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5
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300°F
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10
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400°F
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15
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500°F
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Volts
3-Phase |
#
Circuits |
KW
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A
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B
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C
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D
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E
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G
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Wt.
(lbs.) |
#
Elems. |
Catalog #
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240
480 |
1
1 |
4.5
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24 5⁄8
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20 3⁄8
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2 5⁄8
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4 5⁄8
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8
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4
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15
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3
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DL3-4-3
DL3-4-5 |
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240
480 |
1
1 |
9
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24 5⁄8
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20 3⁄8
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3 5⁄8
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5 5⁄8
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10
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2 1⁄2
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20
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6
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DL6-9-3
DL6-9-5 |
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240
480 |
1
1 |
18
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24 5⁄8
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20 3⁄8
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5 5⁄8
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7 5⁄8
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10
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3 1⁄2
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25
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12
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DL12-18-3
DL12-18-5 |
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240
480 |
2
1 |
27
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24 5⁄8
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20 3⁄8
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7 5⁄8
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9 5⁄8
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12
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3
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35
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18
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DL18-27-3
DL18-27-5 |
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240
480 |
2
1 |
36
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24 5⁄8
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20 3⁄8
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9 5⁄8
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11 5⁄8
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14
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2 3⁄4
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41
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24
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DL24-36-3
DL24-36-5 |
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240
480 |
2
2 |
45
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24 5⁄8
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20 3⁄8
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11 5⁄8
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13 5⁄8
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14
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3 1⁄4
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50
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30
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DL30-45-3
DL30-45-5 |
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240
480 |
3
2 |
54
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24 5⁄8
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20 3⁄8
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13 5⁄8
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15 5⁄8
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14
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3 1⁄4
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60
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36
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DL36-54-3
DL36-54-5 |
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240
480 |
2
1 |
63
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24 5⁄8
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20 3⁄8
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15 5⁄8
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17 5⁄8
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14
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41⁄4
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70
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42
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DL42-63-3
DL42-63-5 |
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240
480 |
4
2 |
72
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24 5⁄8
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20 3⁄8
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17 5⁄8
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19 5⁄8
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14
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43⁄4
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80
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48
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DL48-72-3
DL48-72-5 |
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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