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CIRCULATION HEATERS
Circulation Heater for
3” - 8“ units. Inlet - outlet
connections are NPT pipe
threads (flanged connections
are optional). Standard
inlet - outlet connections on
10” and larger units are
150 lb. rated flanges.
OPTIONAL FEATURES
Weather proof insulated shroud
All stainless steel construction
ASME section 8 construction on
vessel.
Other sheath materials:
Carpenter 20, Model 400,
Inconel 600, Hastelloy,
and Titanium
High pressure construction
High temperature ceramic fiber
insulation
Passivation on all wetted surfaces
THREADED MOUNTING
LUGS WELDED TO
HEATING CHAMBER
FIBERGLASS INSULATION IS
STANDARD BETWEEN HEATING
CHAMBER AND OUTER JACKET
SEDIMENT
DRAIN
HEATING CHAMBER
PAINTED STEEL SHROUD
BULB AND CAPILLARY
THERMOSTATS OR SOLID
STATE CONTROLS
APPLICATION FACTORS
Heater selection is influenced by the
following parameters:
NEMA 1, NEMA 4, AND
NEMA 7 TERMINAL HOUSINGS
150 LB. FORGED
STEEL FLANGE
WITH BOLT
CONSTRUCTION
The heated medium, viscosity, specific
heat, density and corrosive properties
The presence of contaminants in the medium
The corrosion resistant properties of
the heated medium
The sheath watt density of the
heating elements (the watts/in²) and
the flow rate of the heated medium
The vessel design and materials of
construction
Times, temperature, and pressure
190 Detroit Street • Cary, Illinois 60013 • Phone: 847-639-5600 • Fax: 847-639-2199 • Web: www.durexindustries.com • TOLL FREE: 800-762-3468
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