Dittman & Greer, Inc.

Explosion-Proof Flanged Immersion Heaters

Indeeco’s explosion-proof flanged immersion heaters are one of the most widely used solutions for heating fluids and gases in hazardous locations.  CSA approved for Class 1, Division 1, Group B, C and D locations and/or approved for ATEX and IECEx Zone 1 and/or Zone 21 locations.  Indeeco's explosion-proof flange heaters are designed for use in tanks, vessels, and in-line heating.

Product Highlights

Wattages up to 8.5 megawatts

Watt densities up to 200 w/in2

Voltages up to 600V

Element sheath temperatures up to 1,500°F

Multiple flange and element materials

Flange sizes up to 30" and 2500# ASME B16.5

Standard Construction Features

• ANSI B16.5 150# or 300# flange 3" up to 30" (max flange size of 24" for div 1 applications)
• Designed to fit into schedule 40 or schedule STD pipe for the given flange size
• Flange material A105 carbon stl, A182 304/304L or 316/316L stainless steel
• Elements sheath materials available; steel, 304 SST, 316 SST, 321 SST, incoloy 800, incoloy 840, copper
• Epoxy or RTV sealed heating elements to prevent moisture absorption
• Stainless steel welded bussing to eliminate loose connections
• Heater circuits divided into 48A max as default
• Heavy duty, low pressure drop design, 304 SST element support spacers provided on 24" centers
• Spacer support rods provided for immersed length greater than 30"
• Lifting lugs for heaters 4" and larger
• Nitrile bonded fiber, or SST/graphite spiral flange gasket provided as standard