Can someone please take a look and let me know if I have the correct parts to attach a gas post to a drilled stopper?
First, the barbed end of this fitting is inserted into the drilled stopper:
Then, this piece screws on:
To which you can attach a type B keg post:
Will that work?
If I’m understanding what your looking to do those pieces should work. When you put the together you should be able to connect a gas side corny QD to one end and stuff the barbed connector into a drilled stopper.
Paul
You will want a nylon washer for the metal to metal flared fitting.
What is the goal here? I’ve never seen something like this…
I probably won’t do it, but I’m considering buying one of these:
Or maybe one of these:
http://www.ssbrewtech.com/products/the-brewmaster-bucket
I was thinking that if I could attach a corny gas post to the airlock stopper, I could pump in a few psi of CO2 prior to cold crashing to avoid air getting sucked into the fermentor (I’ve heard from other owners that the brewbuckets can hold about 4 psi before the lid seal begins to leak).
I was also thinking that I could do closed loop transfers to a purged serving keg by positioning the brewbucket above the keg, attaching a hose from the fermentor racking arm to the liquid out post on the receiving keg, and attaching a hose from the gas in post on the receiving keg to the airlock gas in post on the fermentor.
I ferment in 10 gallon corny kegs now which is nice because I can cold crash and transfer under pressure without exposure to air. The brewbuckets have a few advantages over fermenting in cornies, but I want to retain these abilities.
I’ve been fermenting in cornies too and don’t want to give up the luxury of transferring closed and under pressure. If you work this out, let us know, for sure! But I’ve been fermenting half of a 6 gallon batch in two 5 gallon cornies. Not ideal, but whatevs.
The gravity assisted closed loop transfer will definitely work. I think the success of the cold crashing regimen depends on whether or not a few psi will push the stopper out.
I think I might actually go through with this; I’m just trying to decide if I want to get the version with the thermowell or not.
How about something like this stuffed into the stopper hole with gas pushing in?
I do closed transfers with a simple inline gas QD system. If I understand what you’re doing, you likely don’t need all of the parts you’re going for but I guess I’m still a little unclear on what’s happening.
Something like that would work fine for transfering, but for cold crashing I want the vessel (provided it is up to the task) to be able to hold a small amount of pressure once I remove the gas line - hence the gas post with sealing poppet valve.
Well, those were definitely the right parts. Unfortunately, the hole in the stopper is a bit too large for the hose barb. I’ll have to buy a solid stopper and drill it myself.
Could you install the stopper from the inside to help prevent it from being pushed out?
That sounds crazy enough to work. Would mean removing the lid, but good idea!
I wonder if a threaded pipe, 2 washers, 2 o-rings and a burr on the side wouldn’t work better (now that I can visualize the end goal)? It would be permanent and no threat if it popping out.
Paul
On the off chance that anyone is actually interested, I’m happy to say that this worked really well.
I hit the fermentor with about 3 psi before cold crashing, and when I checked on it the next day, it was still holding pressure.
The closed loop transfer also went very smoothly.
This thing is so much easier to clean than a 10 gallon corny keg. I might buy a second one.
I used to use a spray bottle just like that one for starsan. It corroded a bit inside and the starsan felt funny. Keep an eye on it.