Reddit reviews Control Devices CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT
We found 9 Reddit comments about Control Devices CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT. Here are the top ones, ranked by their Reddit score.
Relief pressure adjustable from 0 to 100 psi1/4" male NPT threaded inlet connectionBrass construction and stainless steel spring for corrosion resistanceSilicon O-ring provides leak-proof seal to within 10 percent of set pressureMicrometer-style nylon knob for pressure relief adjustment
If you do make a spunding valve I recommend this pressure relief valve. I bought a pre-built spunding valve off of homebrewing.org and the pressure relief valve it came with sucked. I saw this on brulosophy I believe and swapped it out. My current fermentation is the first I've used the new one, but so far it is MUCH better.
OP, I found out what you were looking for is called a spunding valve. It's essentially used to brew beer under a fixed pressure. I found this on amazon , how you'd fix that to a lid is beyond me tho.
​
Edit : Also to note: mason jars cannot hold pressure anyhow, you'd have to bottle your kombucha first and fix on the valve to the bottle cap/cork and set it fro like 30-40 psi beyond which the bottle will explode anyway.
I use this.
I had to dial it in a bit but using a decent gauge it's not too difficult. When I have it turned to 60PSI it'll hold 20 perfectly, I have a bunch of stuff noted at home from my ~5mins of testing it took to dial it in.
It has held (and allowed to build) pressure on my Flanders Red for a couple months now awesomely.
No need to go insane on pricepoint for something like this, but if you want the kind of precision you got without having to trial and error shit, then go nuts.
This is a pretty common item. You will have an easier time finding an adjustable pressure relief valve than a set 3 psi, but even that isn't too uncommon.
I found this one on Amazon
Funny this comes out the day all the parts for my spund build arrive. Good stuff! Got the parts in question from the chi company, valve and gauge off amazon.
spunding valve
1/4” NPT male x 1/4” JIC female
Nylon Flare Fitting Washers (1/4”)
Stainless Tee 1/4” x 1/4” x 1/4” NPT
Quick Disconnect - gas MFL
Pressure Relief Valve Adjustable Pressure 0-100psi 1/4” NPT
Pressure Gauge 60psi 1/4” NPT
I ferment in 10 gallon cornies and I just built myself a spunding valve to use as a test. Wasn't that hard the main bit is the valve itself, which I got off Amazon.
http://www.amazon.com/gp/product/B007GDY3CU/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1
http://www.amazon.com/gp/product/B002FYI58S/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1
http://www.amazon.com/gp/product/B000BQUTBS/ref=oh_aui_detailpage_o08_s01?ie=UTF8&psc=1
And then some fiddly bits to go from the Tee to the QD for the keg.
What if you did this:
Fermenting keg > pressure relief valve (set to say 22psi for spunding purposes at room temperature) > oversized tubing that could fit over the pressure relief valve > check valve > co2 keg > spunding valve (like 120-130psi).
Then you could use the co2 keg as a co2 tank.
Pressure relief valve: https://www.amazon.com/gp/product/B007GDY3CU/ref=as_at/?imprToken=9h1Z-UNJjbEBc2vuAiG75A&slotNum=0&ie=UTF8&camp=1789&creative=390957&creativeASIN=B007GDY3CU&linkCode=w61&tag=hombrefin-20&linkId=CNQ6I4IKSFEAO43T
Would this work? It's rated to 30psi and just needs to be capped on the male end.
http://www.amazon.com/Apollo-Valve-10-400-Series-Pressure/dp/B008835NQC/ref=sr_1_12?ie=UTF8&qid=1412969259&sr=8-12&keywords=pressure+valve
This one is adjustable, but needs to be adapted to 3/4".
http://www.amazon.com/Control-Devices-Series-Pressure-Adjustable/dp/B007GDY3CU/ref=sr_1_1?ie=UTF8&qid=1412969259&sr=8-1&keywords=pressure+valve
This is basically what I'm referring to.
You know, like this.