Durex Industries has expanded its line of immersion heaters for process solutions. Immersion heaters from Durex are now available in screw-plug, flange and over-the-side styles to suit most applications in the process industries. Virtually any solution, from acids to plating chemicals to food products and even molten salt baths, where a reliable source of immersed heat is required, can be accommodated by a Durex heater. Standard features include heavy-duty MgO heating elements made entirely by Durex; NEMA moisture- or explosion-resistant enclosures; copper, steel or Incoloy sheath; welded construction and operating temperatures to 863C. Optional features include thermostatic controls; other sheath materials such as Carpenter 20, Monel, Inconel or titanium; passivated elements and plugs/flanges for pure or deionised water, photochemicals and other special processes.