2" vs. 4" RTD probe

[beeguy]

I will be using it in a T pipe coming out from the coil. My concern is that with the 2" it won't stick in enough after I add the 1/4" to 1/2" NPT adaptor while the 4" would give a better reading? But then the 4" would have more flow restriction. Which do you guys use? Does the 2" still go into enough wort with the adaptor?

 

[IrregularPulse]

My thermocouple I'll be using is only about 1/4" long into the keg. It's the same one Pol used on his first electric build and it seemed to work fine. On the other hand, I don't think I'd be worried about a thermometer probe causing any flow issues if you went the with 4"

 

[marnel]

I will be using it in a T pipe coming out from the coil. My concern is that with the 2" it won't stick in enough after I add the 1/4" to 1/2" NPT adaptor while the 4" would give a better reading? But then the 4" would have more flow restriction. Which do you guys use? Does the 2" still go into enough wort with the adaptor?

Is this for a rims chamber? If so I ended up using a 4inch after using 2 reducers from the T.

 

[DeeDub76]

As you may already know... approx. 1/4" of the end of the RTD is the only place where the platinum resistence element is affected by temperature. The remaining length is just a sheath.

 

[beeguy]

It is for a HERMS system. The T will be placed after the coil and before the MLT. Good to know only the tip reads. How much "blockage" do you guys feel the probe puts in the pipe?