Circulation and Process Heaters
Watlow's circulation heaters are compact heating solutions for fluids such as purified and inert gases, supercritical fluids and liquids like de-ionized water for use in semiconductor and electronics industries as well as for general liquid and gas heating applications.
Watlow's industrial process heater lines of immersion, circulation and duct heaters are used to heat a myriad of high and low viscosity fluids ranging form de-ionized and process water, oils, solvents, rinse agents, caustic solutions, etc. to process gases like air, nitrogen, purified and inert gases as well.
| STARFLOW Circulation Heater | 316LSS | 316L |
Inert gases, liquids 3.9 - 5.4 W/cm² (25 -35 W/in²) |
| Immersion Heaters | Inconel®, Incoloy®, 304SS, 316SS, Steel, Copper | Plugs - 1 to 2 1/2 in. NPT; Brass, Steel, 304SS, 316SS Square Flange - 2 1/2, 3 1/8, 4 1/2; in.: Brass, Steel, 304SS, 316SS, Inconel® materials ANSI flange - Class 150 to 1200 lb., 2 - 36 in. size; Steel, 304SS, 316SS, Inconel® materials |
Oils to 4.6 W/cm² (30 W/in²) Water to 15.5 W/cm² (100 W/in²) Gases to 4.6 W/cm² (30 W/in²) Other liquids 1.2 -4.7 W/cm² (8 - 30 W/in²) |
| ASME Immersion Heaters | Inconel®, Incoloy®, 304SS, 316SS, Steel, Copper | ANSI flange - Class 150 to 2500 lb., 2 in - 48 in. size; Steel, 304SS, 316SS, 321SS, titanium, Incoloy®, Inconel® materials |
Oils to 4.6 W/cm² (30 W/in²) Water to 15.5 W/cm² (100 W/in²) Gases to 4.6 W/cm² (30 W/in²) Other liquids 1.2 -4.7 W/cm² (8 - 30 W/in²) |
| Circulation Heaters | Inconel®, Incoloy®, 304SS, 316SS, Steel, Copper | Vessel - Steel, 304SS, 316SS, Inconel® 1 to 2½ in. NPT Screw Plugs; ANSI flange - Class 150 to 1200 lb., 2 - 36 in. size; Steel, 304SS, 316SS, Inconel® materials |
Oils to 4.6 W/cm² (30 W/in²) Water to 15.5 W/cm² (100 W/in²) Gases to 4.6 W/cm² (30 W/in²) Other liquids 1.2 -4.7 W/cm² (8 - 30 W/in²) |
| Engine Preheaters | Copper, Steel, Incoloy® | Vessel - Steel | Up to 210°F (100°C) Up to 13.9 W/cm² (90 W/in²) |
| Over the Side Heaters | Incoloy®, Steel | L-shaped, O-shaped, Drum, Vertical loop |
Viscous fluids, freeze protection 1.2 - 9.3 W/cm² (8 - 60 W/in²) |
| Duct Heaters | Incoloy® | Steel mounting flange/terminal box (insulated): Modular duct 6kW to 2.2 MW (uninsulated) |
Air to 1200°F (650°C) Up to 6.2 W/cm² (40 W/in²) |
For more information on cast-in heaters that use Watlow heating elements, such as the CAST-X® family of heaters, contact Cast Aluminum Solutions, LLC.
Applications
- Oil and gas field equipment
- Refineries and petrochemical plants
- Chemical and industrial gas plants
- HVAC duct heating
- Open tanks and heat treat baths
- Textile drying
- Heat transfer and lube oil systems
- Semiconductor processing equipment
- Precision cleaning equipment
- Power generation systems
- Emissions control systems
- Supercritical fluid heating
- In-line water boilers
Watlow manufactures a variety of tubular heaters and process assemblies including screw plug heaters, flange heaters, circulation heaters, duct heaters, drum heaters, immersion heaters, screw plug immersion heaters and tubular heaters. For more information about tubular heaters and process assemblies consult your local Watlow sales representative.
Related Literature, News and Downloads
Click on the below links for more product information. PDF documents require Adobe® Reader® version 7 or higher for viewing.
| Specification Sheets & Brochures | Size/Pages |
|---|---|
| Circulation Heaters | 97K / 3 (PDF) |
| Starflow Circulation Heaters | 45K / 2 (PDF) |
| Engine Heaters and Systems | 178K / 4 (PDF) |
| BABY-O Engine Preheater | 39K / 2 (PDF) |
| Process Heating and Control | 2,982K / 16 (PDF) |
| EHG SL10 Process Controller and Safety Limit | 2,037K / 4 (PDF) |
| Modular Duct Heater | 124K / 4 (PDF) |
| Cable/Coil Heaters | 84K / 2 (PDF) |
| Related News Releases and Newsletters | Date |
|---|---|
| Watlow Offers Immersion and Circulation Heaters Compliant to ATEX Directive | 11-Oct-2006 |
| Related Technical Documents | Size/Pages |
|---|---|
| FIREBAR Circulation Heater Installation & Maintenance Manual | 64K / 7 (PDF) |
| ISO 9001:2000 Certification - Hannibal | 130K / 1 (PDF) |
| Product Case Histories | SIC Code |
|---|---|
| Car Manufacturer Heats with Watlow Circulation Heater | 3714 |
| Watlow Circulation Heater Hands Fruit Processing a Better Deal. | 2891 |
PDF documents require Adobe® Reader® version 7 or higher for viewing.
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