Milled Groove Tubular Heaters

Milled Groove Tubular Heaters

Detail Watlow manufactures high-temperature tubular heaters to bridge the gap between standard tubular heaters and Watlow MULTICELL™ heaters. This high temperature heater is well suited for process air heating applications in excess of 1300˚F (704˚C), resulting in a maximum sheath temperature of 1800˚F (983˚C). Controlled lab testing between the new design and current tubular designs shows an increase in life of approximately 50 percent.
  The high-temperature heaters consist of an engineered tubing with an outer sheath of Alloy 600 and a special internal construction. The outer sheath offers high temperature capabilities, reduced oxidation as well as corrosion resistance.
  The tubular heater offering is available in 0.430 and 0.375 inch diameters that are configurable either as formed tubulars or process heaters. The tubular heaters can also be welded to flanges and plates for mounting purposes. Maximum sheath length available is 275 inches for the 0.430 inch and 0.375 inch diameters. The factory should be contacted for longer sheath lengths.
  Watlow not only delivers the heat fast to the process with efficient heat transfer, but guarantees the heater’s fast delivery, too. While Watlow guarantees standard delivery within three to four weeks, tough delivery schedules are Watlow’s specialty.
Features & Benefits Precise conformity to customer specifications ensures easy installation
  Alloy 800 sheath material are corrosion resistant and capable in high-temperature environments
  304 stainless steel features excellent pliability – best choice for small bend radii
  Superior resistance coil design produces even heating
  Threaded stud or lead wire termination as required provides robust options for challenging environments

 

Material Maximum Operating Temperatures Maximum Watt Densities
  F° W/in2 W/cm2
304 Stainless Steel 1200 650 60 9.3
Alloy 800 1600 870 60 9.3