I'm looking for a Thermowell that will fit in a corny keg liquid out dip tube hole and is flared like the dip tube so I can install the post without the poppet and I can run my temp Probe in it and the keg will still be sealed and able to hold pressure. I didn't read this whole thread so if this has been cover already I apologize.
OK we can do this but you need to make sure your probe will fin down IN a dip tube, I believe the ID of those are 1/4" or maybe a TAD smaller.
What we would be doing is taking a NEW straight dip tube and cutting it to the length you tell me. TIG welding a cap on the end and drilling out a ball lock post connector so your probe will fit through the hole and down into the dip tube (now thermowell) using the post connect as your nut to hold the thermowell in place
Let me know if your probe will fit in your dip tube as it site right now and I will get you a price do do it all. Send me a PM with your answer and your Shipping address and I can get you a shipped quote.
Cheers
Jay