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Selecting an Immersion Heater
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Bolt-On Immersion Heaters with Overheat Protection for Chemical Solutions
With One Heating Element and Adjustable Thermostat
With One Heating Element
With Three Heating Elements
5-15
A replaceable fuse cuts off power if the heating element reaches 190° F to prevent burnout and premature failure. Bolt the flange to the top of containers. Heaters make direct liquid contact for fast and efficient heating. The heating element is 304 stainless steel for good resistance to harsh chemicals.
Heaters without temperature control require a temperature switch or controller (sold separately) to regulate heat output.
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 digital keypad.
Optional 329° F fuse (sold separately) cuts off power if the heating element reaches 329° F.
Note: Immerse the heating element in liquid up to at least the minimum coverage level to prevent heater failure.
Heating Element | Flange Bolt Hole | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wattage, W | Watt Density, W/sq. in. | Current, A  | Lg. | Wd. | No. of | Min. Coverage | NEMA Style | Wire Lead Lg. | Dia. | No. of | For Use With | Each | |
Without Temperature Control—304 Stainless Steel Heating Element and 304 Stainless Steel Body | |||||||||||||
120V AC, Single Phase | |||||||||||||
| 1,000 | 35 | 8.3 | 11" | 1 1/4" | 1 | 9" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 0000000 |
240V AC, Single Phase | |||||||||||||
| 1,000 | 35 | 4.2 | 11" | 1 1/4" | 1 | 9" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
| 2,000 | 35 | 8.3 | 17" | 2" | 1 | 12" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
| 3,000 | 35 | 12.5 | 22" | 2" | 1 | 16" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
| 4,000 | 35 | 16.7 | 29" | 2" | 1 | 21" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
| 6,000 | 35 | 25 | 38" | 2" | 1 | 30" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
| 9,000 | 35 | 37.5 | 51" | 2" | 1 | 43" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
240V AC, Three Phase | |||||||||||||
| 3,000 | 35 | 7.3 | 11" | 1 1/4" | 3 | 9" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 00000000 | 000000 |
| 6,000 | 35 | 14.5 | 17" | 2" | 3 | 12" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
| 9,000 | 35 | 21.7 | 22" | 2" | 3 | 16" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 00000000 |
| 12,000 | 35 | 29 | 29" | 2" | 3 | 21" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 00000000 |
| 18,000 | 35 | 43.4 | 38" | 2" | 3 | 30" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 00000000 |
| 24,000 | 35 | 65.1 | 51" | 2" | 3 | 43" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 00000000 |
480V AC, Single Phase | |||||||||||||
| 2,000 | 35 | 4.2 | 17" | 2" | 1 | 12" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
| 3,000 | 35 | 6.3 | 22" | 2" | 1 | 16" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
| 4,000 | 35 | 8.3 | 29" | 2" | 1 | 21" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
| 6,000 | 35 | 12.5 | 38" | 2" | 1 | 30" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
| 9,000 | 35 | 18.8 | 51" | 2" | 1 | 43" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
480V AC, Three Phase | |||||||||||||
| 6,000 | 35 | 7.3 | 17" | 2" | 3 | 12" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 000000 |
| 9,000 | 35 | 10.9 | 22" | 2" | 3 | 16" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 00000000 |
| 12,000 | 35 | 14.5 | 29" | 2" | 3 | 21" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 00000000 |
| 18,000 | 35 | 21.7 | 38" | 2" | 3 | 30" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 00000000 |
| 27,000 | 35 | 32.6 | 51" | 2" | 3 | 43" | __ | 48" | 1/4" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 000000000 | 00000000 |
With Adjustable Thermostat (32° to 302° F)—304 Stainless Steel Heating Element and 304 Stainless Steel Body | |||||||||||||
120V AC, Single Phase | |||||||||||||
| 500 | 35 | 4.2 | 11" | 1 1/4" | 1 | 9" | 5-15 | __ | 1/2" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 0000000 | 000000 |
| 1,000 | 35 | 8.3 | 11" | 1 1/4" | 1 | 9" | 5-15 | __ | 1/2" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 0000000 | 000000 |
| 1,500 | 17 | 12.5 | 28" | 2" | 1 | 12" | 5-15 | __ | 1/2" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 0000000 | 000000 |
| 1,500 | 35 | 12.5 | 17" | 2" | 1 | 12" | 5-15 | __ | 1/2" | 2 | Ammonium Hydroxide (0-3%) Ammonium Hydroxide (3-6%) Deionized Water Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Nitric Acid (0-3%) Nitric Acid (3-6%) Phosphoric Acid (0-3%) Phosphoric Acid (3-6%) Propylene Glycol Salt Water Soap Solutions Sodium Hydroxide (0-3%) Sodium Hydroxide (3-6%) Water | 0000000 | 000000 |
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 without temperature control require a temperature switch or controller (sold separately) to regulate heat output.
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.
Incoloy heating elements are more corrosion resistant than steel heating elements.
Note: Fully immerse the heating element in liquid to prevent heater failure. These heaters install through threaded container openings or pipe couplings.
Incoloy Heating Element with 304 Stainless Steel Body
Without Temperature Control —Incoloy Heating Element
With Adjustable Thermostat—Incoloy Heating Element
Heating Element | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wattage, W | Watt Density, W/sq. in. | Current, A | Lg. | Wd. | Pipe Size | Thread Type | Gender | Wire Connection Type | For Use With | Each | |
Without Temperature Control | |||||||||||
120V AC, Single Phase | |||||||||||
| 475 | 22 | 4 | 12 9/16" | 15/16" | 1 | NPT | Male | Screw Terminals | Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Propylene Glycol Water | 00000000 | 0000000 |
| 1,100 | 21 | 9.2 | 28 7/16" | 15/16" | 1 | NPT | Male | Screw Terminals | Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Propylene Glycol Water | 00000000 | 000000 |
| 1,325 | 20 | 11 | 34 7/8" | 15/16" | 1 | NPT | Male | Screw Terminals | Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Propylene Glycol Water | 00000000 | 000000 |
With Adjustable Thermostat (60° to 250°F) | |||||||||||
120V AC, Single Phase | |||||||||||
| 475 | 22 | 4 | 12 9/16" | 15/16" | 1 | NPT | Male | Screw Terminals | Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Propylene Glycol Water | 00000000 | 000000 |
| 1,100 | 21 | 9.2 | 28 7/16" | 15/16" | 1 | NPT | Male | Screw Terminals | Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Propylene Glycol Water | 00000000 | 000000 |
| 1,325 | 20 | 11 | 34 7/8" | 15/16" | 1 | NPT | Male | Screw Terminals | Ethylene Glycol Hydraulic Oil Machine Oil Motor Oil Propylene Glycol Water | 00000000 | 000000 |
| Replacement Thermostat (60° to 250°F) | 0000000 | Each | 0000000 |
Compact Screw-Plug Immersion Heaters for Oil and Coolant
Heat oil or coolant inside small containers to reduce the viscosity of the liquid and improve flow. These heaters fit in compact openings that are 1 NPT or smaller. With a low-watt density, these heaters operate efficiently and won’t burn out when used with a wide range of oils and coolants. The heating element is made of stainless steel, so it resists corroding when exposed to chemicals.
Both ends of these heaters are threaded, so one side fits into your tank and the other can be threaded into a conduit to protect the wiring. For the most evenly distributed heating, choose the largest length of heater that will fit in your container. To control the settings of the heater, they must be connected to a temperature switch or controller (required but not included).
Note: Fully submerge the heating element in liquid to prevent heater failure.
Heating Element | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wattage, W | Watt Density, W/sq. in. | Current, A | Lg. | Wd. | Pipe Size | Thread Type | Gender | Wire Lead Lg. | For Use With | Each | |
316 Stainless Steel Heating Element with 316 Stainless Steel Body | |||||||||||
120V AC, Single Phase | |||||||||||
| 25 | 20 | 3.5 | 1 5/8" | 1/4" | 1/8 | NPT | Male | 6" | Ethylene Glycol, Hydraulic Oil, Propylene Glycol, Water | 0000000 | 0000000 |
| 35 | 20 | 6 | 1 9/16" | 3/8" | 1/4 | NPT | Male | 6" | Ethylene Glycol, Hydraulic Oil, Propylene Glycol, Water | 0000000 | 000000 |
| 70 | 20 | 3.5 | 4 5/8" | 1/4" | 1/8 | NPT | Male | 6" | Ethylene Glycol, Hydraulic Oil, Propylene Glycol, Water | 0000000 | 000000 |
| 100 | 20 | 6 | 4 9/16" | 3/8" | 1/4 | NPT | Male | 6" | Ethylene Glycol, Hydraulic Oil, Propylene Glycol, Water | 0000000 | 000000 |
| 100 | 20 | 10 | 2 7/16" | 5/8" | 1/2 | NPT | Male | 6" | Ethylene Glycol, Hydraulic Oil, Propylene Glycol, Water | 0000000 | 000000 |
| 165 | 20 | 15 | 3 3/8" | 3/4" | 3/4 | NPT | Male | 6" | Ethylene Glycol, Hydraulic Oil, Propylene Glycol, Water | 0000000 | 000000 |
| 215 | 20 | 10 | 5 7/16" | 5/8" | 1/2 | NPT | Male | 6" | Ethylene Glycol, Hydraulic Oil, Propylene Glycol, Water | 0000000 | 000000 |
| 285 | 20 | 25 | 4 5/16" | 1" | 1 | NPT | Male | 6" | Ethylene Glycol, Hydraulic Oil, Propylene Glycol, Water | 0000000 | 000000 |
| 300 | 20 | 15 | 6 3/8" | 3/4" | 3/4 | NPT | Male | 6" | Ethylene Glycol, Hydraulic Oil, Propylene Glycol, Water | 0000000 | 000000 |
| 470 | 20 | 25 | 7 5/16" | 1" | 1 | NPT | Male | 6" | Ethylene Glycol, Hydraulic Oil, Propylene Glycol, Water | 0000000 | 000000 |