High Pressure and Temperature Thermowells?
High Pressure and Temperature Thermowells?
(OP)
Hi all,
I need to measure the temperature of a process fluid that is under 15,000psi and 400°F. I am looking at using a thermocouple in a thermowell, but I am having trouble finding something that is rated to that high of pressure. Any suggestions? I am not too picky for connections as we can accommodate to what is available.
Thanks!
-Leo
I need to measure the temperature of a process fluid that is under 15,000psi and 400°F. I am looking at using a thermocouple in a thermowell, but I am having trouble finding something that is rated to that high of pressure. Any suggestions? I am not too picky for connections as we can accommodate to what is available.
Thanks!
-Leo





RE: High Pressure and Temperature Thermowells?
contact your local supplier.
RE: High Pressure and Temperature Thermowells?
RE: High Pressure and Temperature Thermowells?
RE: High Pressure and Temperature Thermowells?
Thank you for the responses.
Specifics are not all that important at this stage as we can design what the thermowell will be mounted into to meet the needs of what is available without any major setbacks.
As for the process fluid it is crude oil, and 3-5 gpm in a 1" diameter pipe (could be a bit smaller).
Can you recommend a supplier or brand that I should look into?
-Leo
RE: High Pressure and Temperature Thermowells?
Something like this http://www.omega.co.uk/pptst/SA1XL.html or this http://www.te-direct.com/products/thermocouples/su...
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: High Pressure and Temperature Thermowells?
Going to be almost impossible to buy a thermowell that short AND that tiny a diameter => The thermowell is going to be larger than the ID of the pipe.
RE: High Pressure and Temperature Thermowells?
RE: High Pressure and Temperature Thermowells?
I doubt that you can get a standard thermowell to fit into a 1" line. Our company standard only has thermo wells for 4" lines and larger. A common way of fitting thermowells into small bore lines is locally to increase the pipe bore to 4". A detail for that can be found in Norsok standard L-CR-003 which is available for free at this location:
https://www.standard.no/en/sectors/energi-og-klima...
Might look a bit over the top on a 1" line though, and would have to be locally supported. Alternatively use a surface mounted and insulated temperature probe as suggested by LittleInch. Some probes are designed to be screwed into a 1/2" boss welded to the surface of the pipe.
RE: High Pressure and Temperature Thermowells?
It overkill to reduce to 4"; ever walked through a plant with small bore piping (1/2" - 3"), and find these 'big zits' where thermowells are installed and the line locally increases to 4"?