Process Air Heaters
Installed in forced air ducts, these units supply constant heat for industrial processes requiring air temperatures up to 750°F / 400°C. Construction features include heavy gauge mounting flange, insulated terminal enclosure and easily replaced heating elements. Typical uses include forced air dryers, core drying, heat treating, annealing and other high temperature applications.
Options:
 Special ratings and/or sizes
Moisture resistant/explosion resistant terminal enclosure
All stainless steel frame construction
Thermowell
Replacement element part number J4W-0110
Thermocouple welded to sheath for high-limit protection
Solid State controls/control panels. |
Guidelines:
Maximum Sheath Temperature: 1150°F/620°C
Maximum Outlet Air Temperature: The guideline
 is based on 22 watts per square inch.
 |
Unit should not be energized in air with a velocity less than 60FPM.
| Air Velocity |
Max Output Air Temperature |
| 360 feet/min. |
650°F / 345°C |
| 540 feet/min. |
700°F / 370°C |
| 960 feet/min. |
750°F / 400°C |
| A |
B |
D |
X |
kw |
No. of
Element |
No. of
Mtg. Hole |
Catalog Number |
| 240V |
480V |
| 5-5/8 |
20-3/8 |
4 |
2-1/2 |
6 |
6 |
10 |
ODH-6A-0001 |
ODH-6B-0002 |
| 7-5/8 |
20-3/8 |
6 |
3-1/2 |
12 |
12 |
10 |
ODH-12A-0003 |
ODH-12B-0004 |
| 9-5/8 |
20-3/8 |
8 |
3 |
18 |
18 |
12 |
ODH-18A-0005 |
ODH-18B-0006 |
| 11-5/8 |
20-3/8 |
10 |
2-3/4 |
24 |
24 |
14 |
ODH-24A-0007 |
ODH-24B-0008 |
| 13-5/8 |
20-3/8 |
12 |
3-1/4 |
30 |
30 |
14 |
ODH-30A-0009 |
ODH-30B-0010 |
| 15-5/8 |
20-3/8 |
14 |
3-1/4 |
36 |
36 |
14 |
ODH-36A-0011 |
ODH-36B-0012 |
| 17-5/8 |
20-3/8 |
16 |
4-1/4 |
42 |
42 |
14 |
ODH-42A-0013 |
ODH-42B-0014 |
| 19-5/8 |
20-3/8 |
18 |
4-3/4 |
48 |
48 |
14 |
ODH-48A-0015 |
ODH-48B-0016 |
| 21-5/8 |
20-3/8 |
20 |
5-1/4 |
54 |
54 |
14 |
ODH-54A-0017 |
ODH-54B-0018 |
| 23-5/8 |
20-3/8 |
22 |
5-3/4 |
60 |
60 |
14 |
ODH-60A-0019 |
ODH-60B-0020 |
HIGH TEMPERATURE PROCESS AIR HEATERS
High Temperature Process Air Heaters provide process temperatures up to 1200°F / 650°C for many oven and forced air applications. Typical applications are recirculating ovens, converting ovens from gas or oil combustion, drying or curing ovens, heat treating, annealing and dehumidification.
Options:
Special ratings or sizes
Moisture resistant/explosion resistant
terminal enclosure
All Stainless Steel frame construction
Thermowell
Thermocouple welded to sheath for
high-limit protection
Solid state controls/control panels
 (PDF file – 75k) |
Guidelines:
Maximum Sheath Temperature:
1500°F / 815°C
Maximum Process Temperature: This
guideline is based on 20 watts per square inch.
|
| Air Velocity |
Max Outlet
Air Temperature |
| 240 feet/minute |
1050°F / 565°C |
| 540 feet/minute |
1100°F / 595°C |
| 960 feet/minute |
1150°F / 620°C |
| 1500 feet/minute |
1200°F / 650°C |
| 2160 feet/minute |
1200°F / 650°C |
FINNED TUBULAR PROCESS AIR HEATERS
Finned tubular process air heaters are designed to provide air temperatures to 500°F (260°C). Typical applications include comfort heating, drying, fruit and produce ripening rooms, forced air dryers, recirculating ovens, heating of cryogenic exhaust gas and other air heating applications with a maximum sheath temperature of 850°F (455°C). Included with each unit is an instruction manual with wiring and installation information.
 |
Options:
 Special ratings and/or sizes
Moisture resistant/explosion
 resistant terminal enclosure
All Stainless Steel construction
Thermowell
Thermocouple welded to sheath
for high-limit protection
Solid state controls/control panels
(PDF file – 7k)
 |
Guidelines:
Maximum Sheath Temperature: 850°F / 450°C
Air
Velocity |
Maximum Outlet Air Temperature |
| 38 watts/Sq.In. |
50 watts/Sq.In. |
67 watts/Sq.In. |
| 450FPM |
200°F (95°C) |
75°F (25°C) |
— |
| 700FPM |
325°F (165°C) |
200°F (95°C) |
75°F (25°C) |
| 1000FPM |
400°F (205°C) |
275°F (135°C) |
175°F (80°C) |
| 1400FPM |
425°F (220°C) |
375°F (190°C) |
250°F (120°C) |
| 1700FPM |
500°F (260°C) |
400°F (205°C) |
300°F (150°C) |
|
