RAPID RESPONSE ELECTRIC HEAT EXCHANGER
Compact, Rapid
Heating of Gases,
Vapors and Liquids for
Precision Applications
Features and Benefits
Compact size and lightweight design
Watlow has developed an innovative circulation heater solution
for applications that demand precise temperature control for
gases and other fluids. The RAPID RESPONSE Heat
Exchanger provides faster thermal response and higher power
in a smaller footprint when compared to most other
conventional circulation heaters. Add to this the value of high
pressure operating capabilities in custom formations and
integrated sensing with Watlow sensors and controllers and
you will quickly see the advantages of using the RAPID
RESPONSE Heat Exchanger.
• Reduces the physical space required by other
circulation heater technologies substantially
Fast thermal response
• Allows low flow conditions to be efficiently heated
High and low working pressure availability
• Provides a wide range of operating pressures
Low internal volume
• Increases heater efficiency significantly
• Minimizes overall system volumetric impact
This patent-pending product was developed around Watlow’s
high quality WATROD electric heating element placed inside
of a tube designed to specifically accommodate your process
pressure and temperature. A wide range of special fittings on
the ends of the outer tube facilitates transition of both the fluid
and WATROD electrical terminations.
Use with gases and liquids
• Assures effectiveness in all media states
Specifications
The intimate contact of the WATROD element with your fluid
and the low thermal mass of the overall system result in
high-energy efficiency and fast response. If needed,
appropriate molded insulation packages can be added for
efficiency improvements or touch-safe protection. The design
of this product tends to enhance the circulation of your gas or
fluid because of the excellent convective film coefficients
created, even at lower flow rates.
• Up to 30 amps in compact configurations
• Process temperatures up to 600°C (1200°F)
• Operating pressure up to 411 bar (6000 psi)
• Standard 208 Volt (120-480 Volt 1-phase and 3-phase
capability)
• Optional finishes include: electro polished, bright annealed,
passivated
• Integral inlet/outlet RTD or thermocouple sensors
• Standard 0.25 in. (6.35 mm) NPT low pressure fitting
(standard and specialized process fittings are available and
chosen by pressure and formation)
If your application demands precise temperature control, let
the RAPID RESPONSE Heat Exchanger provide the thermal
response, wattage and space savings you need. High
operating pressure will not be an issue. Add integrated
sensing with Watlow sensors and controllers and you will
have a complete thermal solution.
• Materials of construction – 304 and 316L Stainless Steel,
Incoloy®, Copper
• Outside tube diameters: 0.5 and 0.625 in. (13 and 16 mm)
• Trim length and electrical terminations consistent with
typical WATROD options
• Bend radii – 0.625 in. (16 mm) for flat bends, 2 in.(51 mm)
inside diameter for coiled bends
Applications
• Solvent replacement
• Fuel cell gas heating
• Parts cleaning
• Biomass extraction
• Refrigeration systems
• Epoxy resin
• Gas heating
• Supercritical fluids
• Humidity generation
• Bio reclamation
• Aerospace, food and
deionized water heating
• Insulation materials available – foam rubber, castable
ceramic and fiberglass
components
Patent Number: U.S. 6,944,394 B2
Incoloy® is a registered trademark of the Special Metals Corporation.
HAN-RRHE-0807
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