Tubular Heater
12Pages

TUBULAR HEATERS MARATHON HEATER

Tubular HEATERS MARATHON HEATER Marathon tubular elements are the most versatile of all metal sheathed heaters. They can be supplied in many lengths, diameters, sheath materials, and electrical ratings. Inherent mechanical flexibility permits forming and bending into many shapes and sizes providing unique adaptability for the process engineer or product designer. Various sheath material selections are available to provide suitable operation from liquid immersion service through high temperature (1600°F) radiant heating service. TYPICAL APPLICATIONS Mica Terminal Insulator •  Liquid...

Thread Size (Custom lengths per request) Threaded Stud Screw Lug-Flag Right Angle 1/4” Quick Disconnect Wire size by amps. Lead Wires, Welded Stud ( 5-40, 6-32), 1/4” quick connects Rubber Overmold Threaded Stud with Silicone Boot Threaded Stud High Voltage Construction Hermetic Seal Silicone Rubber

END SEALS Tubular heaters use Magnesium Oxide (MgO) as an insulator between the heating coil and the sheath. MgO is hygroscopic, and will absorb and retain water molecules from its surroundings. This is an undesired characteristic as any humidity inside the heater will corrode the resistance wire, degrade the resistance of the heater, and even allow an arc between the sheath and the resistance wire. To prevent moisture from affecting the performance of the heater, a variety of end seals are available. Listed below are our standard recommendations. Combinations of these end seals are...

Immersion Heaters All HEATER DIAMETERS ARE AVAILABLE FOR Immersion APPLICATIONS Screw PluG Available with High Temp Cut-out Available with NEMA IV Terminal Housing Flange Heaters

Bend formations When possible, please provide a drawing to our design department to insure that heaters are manufactured to your specifications. If you do not have a drawing, you may choose one of the following standard configurations and supply us with the dimensions shown. Please see page 2 for minimum bending radiuses.

L Type A (horizontal view) A Type B (horizontal view) Type 26 Type 26 Phone: 830-775-1417 Type 27 Type 27 sales@marathonheater.com

Stock List 60W per square inch, 316SS Heated Length Unheated Length (in.) (in.) (in., each end) 23W per square inch, Incoloy Heated Length Unheated Length (in.) (in.) (in., each end) 23 W per square inch, Steel Heated Length Unheated Length (in.) (in.) (in., each end) 60W per square inch, 316SS Heated Length Unheated Length 120V (in.) (in., each end)

Stock List Watts 48W per square inch, Incoloy Heated Length Unheated Length 120V (in.) (in., each end) 23W per square inch, Incoloy Heated Length Unheated Length 120V (in.) (in., each end) 23W per square inch, Steel Heated Length Unheated Length 120V (in.) (in., each end) 15W per square inch, Steel Heated Length Unheated Length 120V (in.) (in., each end) 8W per square inch, Steel Heated Length Unheated Length 120V (in.) (in., each end) 28

Starflex BAND REFRACTORY Strip MICA STRIP CERAMIC STRIP SILICONE RUBBER REFRACTORY DISC Drum Heater Your Authorized Marathon Heater Representative is: Marathon Heater 808 Hackberry Ln., Del Rio, TX 78840. Phone: (830)-775-1417 FAX: (830)-775-4379 www.marathonheater.com Download our latest brochures at http://www.marathonheater.com BR-TUB-12 Revised 20 November 2012 © Marathon Heater Inc. All Rights Reserved. CERAMIC BAND OTHER PRODUCTS MICA BAND