... water, oil, heat transfer fluid, and corrosive solutions), and for heating gases (steam, vapors etc.). Available special sizes, wattages, and ... When you order ,please specify:• Flange size and pressure ratings• Heating element watt density• Sheath material (corrosive or non corrosive)a.Temperature ... Degree of aeration of exposed liquidc. Velocity of the liquid Air electric heating tube,heating element