In order to replace an XTRACTO-PAD® (model TC59-X) assembly do I need to buy all the accessories?
No. The tube clips, guide tube with weld-pad and the heat shield will be reused. Only the sensor element needs to be replaced. No welding is required.
Why would I use a tubeskin thermocouple?
Temperature measurement in heaters or furnaces is extremely important and the tubeskin thermocouple is one of the best ways to determine if the temperature is in the right range.
Do I need expansion loops?
If you anchor a tubeskin thermocouple outside the furnace (fixed exit) and have any furnace tube movement you will need expansion loops. There are various expansion loops used such as S-loop, multiple coil, single coil and spiral loop.