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Adjustable Pressure Relief Valve

Adjustable Pressure Relief Valve

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We developed this product to relieve pressure when we transferred or filtered beer from one keg to another. This connects to the keg you are filtering into and has adjustable relief valve for letting pressure off as the keg fills up.

Notes: The very end of the pressure relief valve can be adjusted by unscrewing to adjust the pressure. If tight, and not adjustable by hand, it needs to be loosened with pliers. Wrap a towel around the end piece of the pressure relief valve (about  the last 1/4 in) and loosen with pliers. Then finger tighten or loosen to desired pressure.

California Recipients: WARNING: Cancer and Reproductive Harm -
Item # FIL42
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.50 LBS
Community Q&A

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Why did you choose this?
MoreFlavor Store
closed fermentation adjustable pressure control
adam paterson on Jan 3, 2020
Clean keg-to-keg transfers.
Brett Binns on Jun 11, 2019
closed fermentation adjustable pressure control
adam paterson on Jan 3, 2020
counter-pressure filling corny kegs from brite tank
Kiel M on Oct 9, 2019
Clean keg-to-keg transfers.
Brett Binns on Jun 11, 2019
For filtering between kegs
Jennifer W on Jan 28, 2019
Price Performance
mark a on Jan 7, 2019
I need this to transfer to smaller kegs.
Gary A J on Dec 6, 2018
This is the only decently rated adjustable pressure relief valve. We'll see how it performs.
Michael D on Nov 20, 2018
counter-pressure filling corny kegs from brite tank
Kiel M on Oct 9, 2019
For filtering between kegs
Jennifer W on Jan 28, 2019

4.2 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Starting to experiment
Experimenting with different fermentation techniques. I ferment in a keg with the dip tube cut 2" short - 4.5 gallon in FV and 4.2 gallons out. Did a Special Bitter - let ferment for 3 days with blowoff then put on the valve set to 13psi. Let it rip for another 4 days, transferred to serving keg, carbonated and drank it on day 8. Beer was great. Trying a lager at room temp next week under 13 psi for 7 days.

Valve doesn't have a gauge but it was easy to adjust to 13psi using the CO2 tank gauge.
September 22, 2019
6 months ago
Faulty Gas Ball Lock Valve
The Ball Lock Valve that came with this item seems faulty. It was leaking air even with the relief valve closed. I tightened it etc., but still nothing, so I replaced it with one of my old ones and boom no more issues.
January 10, 2019
1 year ago
Response from MoreFlavor
Hey so sorry about your experience. We try very hard to create the best experience for our customers and provide quality products. Please give us a call at 1-800-600-0033 or email us at so that we can assist you. We are here to help. Cheers!
January 11, 2019
Tyler W Staff
Does what it says. If you can, spend the extra $ for the gauge model!
This does what it says. I wanted the model with the gauge but it was out of stock and I was impatient. Quick tip to set pressure without the gauge: Close the valve. Set your regulator to the pressure you want. Fill the keg/vessel to the psi you want. Then pop this thing on,, and slowly open valve until you hear the C02 escape. Not a precise method, but probably gets you within a few psi of where you want to be. Also, I am sure you cam build this cheaper (even with parts from MoreBeer) but again- I'm impatient.
September 25, 2018
1 year ago
OK but could be better
I have the deluxe version and the gauge is great. The pressure control is rough at best. Needle valve would work much better and I will add one to mine
February 1, 2016
Works, but adjustments are fairly crude
Having an adjustable pressure relief valve is great for closed environment CO2 transfers, and especially helpful for keg to keg transfers of carbonated beer. The adjustment to the pressure relief is fairly crude (tends to jump with little adjustments). A tighter tolerance for the threads would probably help. That said, it's better than not having one, and beats the hell out of the old process of pulling the pressure relief valve to stay all the way open, or burping it. I wish I would have opted for the more expensive one with the gauge. My only suggestion for improvement is a tighter tolerance on the threads for the adjustment for the pressure.
May 27, 2015
Awesome product
I use this every time I transfer from one keg to another. Works very well and cant complain. Easy to clean.
May 28, 2014