Accutherm offers high quality circulation heaters, suitable for heating liquids and gases. A wide selection of tubular elements in stock provide quick delivery of our catalog heaters.

Application

Circulation heaters heat flowing liquids and gases. Accutherm offers a wide selection of vessel material, housings, sensors and temperature controls. Accutherm has HOT IDEAS for all your tubular element needs.

Standard Features

UL & CSA recognition on elements.
334 stainless steel sheath (equivalent to Incoloy 840) standard for most applications and temperatures.
Type 'A' 80/20 resistance wire sized to provide low wire watt density for maximum life.
Fusion welded junction between pin and resistance wire for superior strength.
High purity MgO compacted to provide maximum heat conductivity and optimum dielectric integrity.
Recompacted bends on hairpin end of elements to restore MgO density.
Terminal ends moisture sealed against the entrance of contaminants during storage and service.
#10-32 terminals with screw lug line connectors.
Welded construction between elements and screwplugs or flanges; silver braze construction on non ferrous materials.
ALL joints between elements and screwplug or flange pressure tested for leaks.
Spacer supports on units where immersed length exceeds 18".
NEMA 1 housings; seamless and deep drawn on all screwplug heaters and flange heaters 8" and under, to provide accessibility to wiring, plus afford a degree of protection against splashing or dripping liquids.
1/2" O.D. thermowell for existing or optional thermostat.
100% inspected for:

Dielectric or Hi-Pot between conductors and sheath of element.

Insulation resistance.

Wattage

Optional Features

ASME Section VIII , Div. 1, design and code stamp available.
NEMA 4 moisture or NEMA 7 explosion resistant enclosures available on all screwplug and flange sizes.
Standoff housing design for high temperature applications.
Thermostat controls available in three temperature ranges, inside NEMA 1, 4, or 7 housings.
MgO filled type J or K thermocouples for control or high limit protection.
NOTE: Hi-limit thermocouples welded to element sheath provides positive sensing protection for over heat situations. Thermocouple junction should be at area of highest operating temperature.
Various selection of sheath materials... Monel 400, Inconel 600, Hastelloy, Carpenter 20, and Titanium.
Vessels, flanges and screwplugs are also available in a wide variety of materials, some of these include Steel, 304 Stainless Steel, and 316 Stainless Steel.
Passivation or Electropolishing on elements, plugs, flanges and vessels for pure and deionized water, photo chemicals and special processes.
Baffle assembly between elements to direct flow through the vessel.
Special lengths, wattage's and voltages... consult factory.
Solid state digital controls available for thermocouple inputs.