Project Update
Added 2019-10-02 19:55:06 +0000 UTCFor a new project I'm currently working on, I had to make a homemade CO2 canister that can be charged with dry ice.
Edit: It is made entirely of high pressure 316 stainless steel and is rated to take pressures that are way higher than CO2. I was planning to empty it within an hour after filling it and so I didnt think i needed a pressure relief valve. There would be no reason for it to ever increase in pressure unless it fell into a fire or something. However, after reading your comments, I've decided to add one just in case and to do things properly.
Comments
Have you tried a grocery store? I'm not familiar with Canadian grocery stores, but I can pick up dry ice, by the pound, at several of my neighborhood grocery stores.
2019-10-13 19:16:52 +0000 UTCGlad to hear it! I'm glad you're being safe <3.
Chrys A Lis
2019-10-04 02:58:16 +0000 UTCAll of the connectors are the same rating as the main pieces.
Nile Red
2019-10-04 02:57:12 +0000 UTCThis may be a dumb question, but are the connections and seals also rated to take the pressures? You may have parts rated to 3k+ psi, but if the seals aren't up to spec you can still get a critical failure where one part meets another.
Chrys A Lis
2019-10-04 01:27:56 +0000 UTCI'll post more details when I actually finish. It's kind of a silly project, but it has been really fun to get it all working.
Nile Red
2019-10-04 01:27:41 +0000 UTCOoh a tease!
Silviu T
2019-10-03 21:02:16 +0000 UTCYeah, that's not a bad idea. I think I'll modify it if I need it in future projects. For now though, its use is very temporary.
Nile Red
2019-10-03 13:23:50 +0000 UTCIt's being done for a very specific purpose. I didnt make it just to have a little co2 canister
Nile Red
2019-10-03 13:22:53 +0000 UTCI dont plan to hold pressure in here for too long. It's mostly temporary. Also, all the parts are rated for 3k+ psi and I'm never going to be putting it above about 700. Putting a relief valve definitely wouldn't have hurt though
Nile Red
2019-10-03 13:22:17 +0000 UTCHe's doing some extractions with supercritical liquids.
Mike Z.
2019-10-03 11:58:00 +0000 UTCThat's easy to do. A few bucks worth of parts from the hardware store. I've done similar things in the past.
Silviu T
2019-10-03 11:21:14 +0000 UTCI mean, really? There was no easiest way to this?
Mono Keras
2019-10-03 08:15:38 +0000 UTCYou may want to put another valve between the canister and the gauge.
Silviu T
2019-10-02 22:52:08 +0000 UTCI assume there really isnt any commercial purchasing options for dry ice in eastern Canada?
Aaron Aitken
2019-10-02 21:34:59 +0000 UTCsharp cut threads are stress raisers i would do a pressure test before loading a working high pressure charge
2019-10-02 20:44:52 +0000 UTCEdible chem: pop rocks
2019-10-02 20:09:30 +0000 UTCI'm sure you know what you're doing. My only concern would be, as with all high pressure containers, an emergency pressure relief valve. I know that operating well within design limits is probably fine, but pressure vessels are terrifying.
Kris Pockell
2019-10-02 20:03:02 +0000 UTCInteresting Indeed.
Daniel Blake Shoemaker
2019-10-02 20:01:20 +0000 UTCHmm Dry Ice projects. Well what would you use the Ice for? Slowing down reactions with dangerous reactions??
Daniel Blake Shoemaker
2019-10-02 20:01:11 +0000 UTC
