JT valve 1

[sealion6100]

Dear all,
Could you pls send me the detail drawing (sketch) of a J-T valve?
Thanks alot!

 

[Montemayor]

sealion6100:

A sketch (& much less a detailed drawing) can't be sent you because you haven't furnished an address. Additionally, this site doesn't permit publishing addresses so don't even try.

However, your question is very simple: a JT (Joule-Thomson) valve is nothing more than an expansion valve - usually constructed very much in the style of a needle valve. You can achieve the Joule-Thomson effect (the free expansion of a compressed gas or gaseous mixture) using any throttling valve - but a needle valve has proven to furnish the operational control sought. In the "oil patch" this valve is usually called a "choke" or a choke valve and it usually is fabricated in the style of a 90^o (or angle) valve.

Hope this helps.

 

[JLSeagull]

Straight cage/globe valves can also function as a JT valve. I have selected cage style globe patterns for the JT around a turbo-expander compresser. I second Montemayor's choke suggestion too.

 

[sealion6100]

Thanks Montemayor, could u pls send me via sealion6100@yahoo.com.
Thanks and Regards!

 

[Ashereng]

Montemayour is correct, many chokes are 90° angle valves.

You can also get an "inline" choke valve style. If you need an inline valve, the same manufacturer of the angle valve will also usually carry the inline style.

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