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| 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 myrid 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. |
| Product |
Heater Element Sheath Materials |
Body and Vessel Materials |
Typical Applications and Watt Densities |
| RAPID RESPONSE Heat Exchanger |
Incoloy®, Copper, 304SS and 316LSS |
Incoloy®, Copper, 304SS and 316LSS |
Gases, vapors, liquids, supercritical fluids; Up to 15kW in compact configurations, process temperatures up to 600°C (1112°F) |
| CAST-X SERIES 1000 Circulation Heater |
Copper coated steel |
Cast aluminum |
Liquid heating - paint, food, solvents, glycol |
| Universal Solvent Circulation Heater |
304SS |
Cast aluminum, Teflon® coated |
Low flash point liquids, gases up to 1500 psi |
| STARFLOW Circulation Heater |
316LSS |
316L |
Inert gases, liquids
3.9 - 5.4 W/cm2
(25 -35 W/in2) |
| VERSALINE Circulation Heater |
Incoloy®, 316SS, 304SS |
316SS, 304SS |
Fluids, vapors and gases
Depending on the application, up to 31 W/cm2 (200 W/in2) |
| Immersion Heaters |
Inconel®, Incoloy®, 304SS, 316SS, Steel, Copper |
Plugs - 1 to 2½ in. NPR; Brass, Steel, 304SS, 316SS
Square Flange - 2½, 318, 4½ 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) |
| 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 100°C (210°F)
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)
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| Duct Heaters |
Incoloy® |
Steel mounting flange/terminal box (insulated): Modular duct 6kW to 2.2 MW (uninsulated) |
Air to 650°C (1200°F)
Up to 6.2 W/cm2 (40 W/in2) |
| 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
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- Semiconductor processing equipment
- Precision cleaning equipment
- Power generation systems
- Emissions control systems
- Supercritical fluid heating
- In-line water boilers
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| Rapid Response Heat Exchanger |
| The Rapid Response Heat Exchanger quickly and effectively heats gases and fluids as they circulate through the unit's tubular design. It offers users a quick response rate and peak performance in high-pressure conditions, making it ideal for precision applications. In addition, the exchanger's design enhances circulation and provides excellent convective film coefficients, even under low flow conditions.
The unit can be custom-configured - allowing it to fit into small areas without sacrificing wattage. It also boasts integral temperature sensing to help users optimize their systems and refine processes.
The heat exchanger is also extremely energy efficient. Since the entire heater is immersed in the circulated chemistry, it virtually eliminates heat loss to the surrounding environment. In some applications, heat loss can be reduced further through the use of molded insulation surrounding the heating element.
Specifications
Up to 15 kW in compact configurations
Process temperatures up to 260°C (500°F)
Operating pressure up to 411 bar (6000 psi)
Standard 208 Volt (120-480 Volt capability)
Electro polished to SEMI standards optional
Integral inlet/outlet RTD or thermocouple sensor
Fluid connections - high pressure VCR-type fittings
Material - 316L standard, consult factory for other material types
Applications
Photoresist material
Solvent replacement
Purification
Parts cleaning
Biomass extraction
Bio reclamation
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. |
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Product Information
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Inconel® and Incoloy®are registered trademarks of Special Metals Corporation.
Teflone® is a registered trademark of E.I. du Pont Nemours & Company.
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Heaters
