Pressure Pot Help

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BillyBoy63

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May 14, 2017
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Heyworth IL
IMG_20170822_124007413.jpg

IMG_20170822_124019751.jpgThinking about buying this pressure pot form TCP Global Corporation
in the product description it says 90 lb. max pressure
and the safety relief valve is set to 60 psi
what would you up grade the safety valve to
someone here said they use 70 psi to cure there pen blanks
I though about a 80 psi or 90 psi valve
what do you think
http://www.penturners.org/forum/attachment.php?attachmentid=167061&stc=1&d=1503424782
 

Dehn0045

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Wouldn't be a pressure pot thread without the "you'll blow yourself up" comments :)

I have the same pot with the Grizzly brand on it. That lid is SECURE. Much more secure than the lid they put on the HF ones.

And for the last time... a modification to the lid is what blew that pot up. Geeeez.

50 psi is plenty with Alumilite. Some might say you need more for casting worthless wood and other funky shapes but for the alumilite itself it gets the bubbles out just fine. Over all, I think those are well constructed for a Chinese made pot and it'll serve you well. I personally don't push the limits of the pressure because I don't see how I'd gain from it.
 

More4dan

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Mar 17, 2016
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Katy, TX
The 90psi is likely the pressure the pot was Hydro tested. You don't want to go higher than the 50 psi working pressure. While it worked once in initial testing to 90 psi, continued used will fatigue the material making it weaker through time as will any corrosion or other damage. Going above the designed working pressure (50 psi) will weaken the pot quicker.


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