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Selecting an Immersion Heater
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Screw-Plug Immersion Heaters for Oil and Coolant
To heat oil and coolant without creating hot spots and damaging the heating element, these heaters have a lower watt density than heaters for water or chemicals. They install into threaded container openings or pipe couplings to quickly and efficiently heat liquid through direct contact.
Heaters with an adjustable thermostat automatically turn on when the temperature drops below the set temperature and off when it rises above the set temperature. Adjust the set temperature with the dial.
Note: Fully immerse the heating element in liquid to prevent heater failure. These heaters install through threaded container openings or pipe couplings.
For technical drawings and 3-D models, click on a part number.
Steel Heating Element with Steel Body
With Adjustable Thermostat—Steel Heating Element
Heating Element | With Adjustable Thermostat (60° to 250°F) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wattage, W | Watt Density, W/sq. in. | Current, A  | Lg. | Wd. | Pipe Size | Thread Type | Gender | Wire Connection Type | For Use With | Body Material | Each | |
120V AC, Single Phase | ||||||||||||
| 475 | 21 | 4 | 12 9/16" | 1 1/8" | 1 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 0000000 |
| 1,000 | 23 | 8.3 | 12 3/4" | 1 3/8" | 1 1/4 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 000000 |
| 1,100 | 20 | 9.2 | 28 7/16" | 1 1/8" | 1 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 000000 |
| 1,325 | 19 | 11 | 34 7/8" | 1 1/8" | 1 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 000000 |
| 1,500 | 23 | 12.5 | 18 1/2" | 1 3/8" | 1 1/4 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 000000 |
240V AC, Three Phase | ||||||||||||
| 3,000 | 21 | 7.2 | 18" | 2 1/4" | 2 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 000000 |
| 5,000 | 21 | 12 | 29" | 2 1/4" | 2 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 000000 |
| 7,500 | 20 | 18.1 | 43 1/2" | 2 1/4" | 2 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 000000 |
| 10,000 | 21 | 24.1 | 57 1/2" | 2 1/4" | 2 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 000000 |
480V AC, Three Phase | ||||||||||||
| 5,000 | 21 | 6 | 29" | 1 1/8" | 2 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 000000 |
| 7,500 | 21 | 9 | 43 1/2" | 1 1/8" | 2 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 000000 |
| 10,000 | 21 | 12 | 57 1/2" | 2 1/4" | 2 | NPT | Male | Screw Terminals | Ethylene Glycol Water | Steel Body | 00000000 | 000000 |