For those using a 100lb recovery tank and an ice bath, not dry ice. What type of container do you put the tank in to cool it?
For those using a 100lb recovery tank and an ice bath, not dry ice. What type of container do you put the tank in to cool it?
32 gallon trash can wrapped in insulation. Takes about 60-80#of ice. I used a rain barrel once in a pinch. Also installed a PVC ball valve on the bottom to drain so you don't have to take the whole tank out.
What are you operating procedures for the mkiv? Do you flood a few times or one long one like RB does? I'm assuming the long flood time is a multiple of the time it takes to feel the cold at the vent tube.
The Mk IV kit comes with two 100 psi sight glasses, but as an option , we offer a 316SS 720 psi sight glass at the top of the column, protected with Swagelok, vacuum check and pressure relief valve #SKUPHA-001.
WolfWurx can supply them with or without certificates of conformance and stainless wire certification tag.
The combination check valve and pressure relief can be obtained directly from Swageloc, who has assigned Skunk Pharm Research part number SKUPHA-001. They automatically come with a certificate of conformance and stainless wire tag.
How much do those run? Could you possibly provide a picture? Thanks GW.
And in regards to Swageloc pressure relief valves, if I remember correctly they are hundreds of dollars. What's wrong with something like this? http://www.amazon.com/Control-Devic...9959630&sr=8-4&keywords=pressure+relief+valve
Looks awfully similar to the one found on a BHOgart recovery tank, although I have not taken more than a glance.
You will have to get pricing from WolfWurx. Like the Swageloc valve assembly coming with certifications, the cost of a certified sight glass makes a tender soul yelp with pain.
In perspective, consider that WolfWurx only builds commercial industrial grade equipment, which must meet all the federal, state, and local codes, including OSHA.
We treat extraction system and aerospace system design the same and choose reliability and function over price, when we have to certify it. We are after all dealing with pharmaceutical extraction, using pressurized flammable gases.
Potentially explosive gases if enough oxygen is aspirated through leaky valves.
The simple pop off valve pictured is not rated for both pressure and vacuum, nor does it come with confirmation papers for the factory preset, as well as a wire locked stainless tag.
I added a check valve in front of the pressure relief valve, so that the pressure relief valve only saw pressure.
I don't have to certify the Swageloc to the state agencies, because Swageloc already has.
If you tested them, you would find that the cheap relief valves may pop off somewhere close to set pressure, but they don't reliably for long, as the springs soften through use, and reset pressure may be excessively low.
You might also take a look at where that one is venting the flammable gases. WolfWurx's attaches a hose to the relief valves and either vents it to a recovery tank under vacuum, or to a safer location.
Having said all that, I am only showing ya'll a way, and I have no doubt that it will stir the creative juices in enough brothers and sisters, that they will start adding cheaper alternatives.
What I am also doing, by posting the design solutions on public forum, is preventing anyone else from patenting the principles. That leaves open the window for everyone to branch out in all directions.
GW, my hat goes off to everything about you and the way you operate. As well as to WolfWurx. You are truly an incredible innovator in this industry, I don't know where we would be without you.
That being said, a Terpenator running a lower grade pressure relief valve following a check valve, and possible excess pressure safely vented 15+ feet away surely must be safer than no pressure relief valve at all? Or does the chance of oxygen being aspirated into the system still remain a looming danger?