Tubeskin thermocouple assembly, extractable

The eTEFRACTO-PAD^® model TC59-E is a product developed at the WIKA Houston R&D center. Taking into account the knowledge of customer applications, needs and requirements, extensive testing was done to ensure the product addresses proven accuracy and ease of installation.

This unique thermocouple design allows for the weldable parts (guide channel, thermal shield, and tube clips) to be installed by the manufacturer of the heater / boiler or even by the tube manufacturer in the case of specialty furnace tubes. A proprietary moldable shield is placed over the guide channel and sheathed cable. This shield and insulation is a key component for the eTEFRACTO-PAD^®, providing accurate temperature measurement and is a patent-pending WIKA innovation in several countries (patent pending, property right: US 17/554,754, EP 21215402.5 and CN 202111548816.4).

Sensor design
The eTEFRACTO-PAD^® is a thermocouple design utilizing a guide channel and optimized thermal shield which combine to provide a single one-step process of welding to the tube.

Inside the guide channel, an extractable thermocouple sensor is made from a mineral-insulated metal-sheathed cable. It contains the insulated internal leads compressed within a high-density ceramic composition. At the hot end, the internal leads are welded together to form an insulated (ungrounded) or non-insulated (grounded) measuring location. At the cold end, the ends of the leads are hermetically sealed and connected to lead ends that form the platform for the electrical connection. Cables, plug-in connectors or connector sockets can be connected to them.

This revolutionary sensor is an engineered solution for the tubeskin industry and will be designed for each application and installation. The materials of each component can be selected to match the application. By utilizing these engineered components you can be confident the eTEFRACTO-PAD^® design will provide accurate measuring results.