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Mineral Insulated ThermocouplesMineral Insulated Thermocouples

Durex' TDC style mineral insulated thermocouple probes are manufactured with compacted magnesium oxide (MgO)  insulation housed in a stainless steel or alloy sheath that protects the thermocouple element from the application's environment. This construction provides an incredibly durable design that can be adapted to a wide variety of applications.

The compacted MgO construction offers superior life compared to other types of thermocouple probes due to its ability to withstand extreme thermal shock and prevent contamination of the element itself. Mineral insulated thermocouples can be constructed to operate at temperatures up to 2400°F. Termination options for these sensors are wide ranging and include plugs mounted directly to the sheath, cast aluminum or iron terminal heads, and flexible lead wires.

Typical industrial process applications include chemical & petrochemical processing, metal treating, power generation, waste treatment, and diesel engine testing.  Mineral Insulated thermocouple assemblies are also commonly included in Durex' process heater and skid systems.

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MgO Thermocouple with Stripped End TDC2 Style

MgO Thermocouple with Stripped End

The TDC2 style thermocouple temperature sensor features a mineral insulated (MgO) element which is junctioned and terminated with a standard 1" long stripped end. This style thermocouple is designed for field replacement or addition of other termination options.

MgO Thermocouple with Plug TDC3 Style

MgO Thermocouple with Plug

The TDC3 style thermocouple temperature sensor features a mineral insulated (MgO) element with universal disconnect plug for reliable connections. Plugs are available in standard (400ºF), high temperature (800ºF), and ceramic (1200ºF) materials.

MgO Thermocouple with Process Head TDC4 Style

MgO Thermocouple with Process Head

The TDC4 style thermocouple temperature sensor features a mineral insulated (MgO) element with a protective terminal housing and process connector. This style thermocouple can be manufactured as spring loaded for direct field replacement into existing thermowells.

MgO Thermocouple with Open Terminal Disc TDC5 Style

MgO Thermocouple with Open Terminal Disc

The TDC5 style thermocouple temperature sensor features a mineral insulated (MgO) element with an open terminal disc design. This thermocouple design allows greater accessibility in wiring for space restricted areas.

MgO Thermocouple with Insulated Leadwire TDC6 Style

MgO Thermocouple - Insulated Leadwire - Straight Sheath

The TDC6 style thermocouple temperature sensor features a mineral insulated (MgO) element that is terminated to an insulated extension wire and straight sheath.  An optional terminal connector can be added to the thermocouple extension wire.

MgO Thermocouple with Insulated Leadwire TDC7 Style

MgO Thermocouple - Insulated Leadwire - 45° Bent Sheath

The TDC7 style thermocouple temperature sensor features a mineral insulated (MgO) element that is terminated to an insulated extension wire and a 45° bent sheath.  An optional terminal connector can be added to the thermocouple extension wire.

MgO Thermocouple with Insulated Leadwire TDC8 Style

MgO Thermocouple - Insulated Leadwire - 90° Bent Sheath

The TDC8 style thermocouple temperature sensor features a mineral insulated (MgO) element that is terminated to an insulated extension wire and a 90° bent sheath.  An optional terminal connector can be added to the thermocouple extension wire.

MgO Thermocouple with Injection Molded Transition TDC9 Style

MgO Thermocouple with Injection Molded Transition

The TDC9 style thermocouple temperature sensor features a mineral insulated (MgO) element that is terminated to an insulated extension wire and encapsulated in a plastic injection molded "mini" transition using insert mold technology and a Liquid Crystal Polymer. The transition can withstand continuous exposure to temperatures up to 562°F.

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