Duotight Push-In Fitting - 8 mm (5/16 in.) Check Valve
Duotight Push-In Fitting - 8 mm (5/16 in.) Check Valve
SKU: DUO110
$4.99
SKU: DUO110
$4.99
I got these like others to prevent beer going back into the gas system when a keg is filled to the top. However this one failed in its duties. Or am I using it wrong?
Great insurance for back flow
I got these, like others, to prevent beer going back into the gas system when a keg is filled to the top. However, this one failed in its duties. Or am I using it wrong?
I have one of these on my continuous carbonated water keg's input water line. That works fine with just a very faint hum when the water flows. Installed on my CO2 lines, they made an embarrassing and annoying loud squeal with every pour. I removed them and replaced them with stainless check valves on each CO2 line - no more squeal. I have seen that Duotight makes a similar check valve specifically for gas lines that might work better for CO2, but I've only seen it for sale at one vendor in Canada, so haven't tried it.
As with all DuoTight Fittings, this check valve works perfectly.
I inserted these when I added a second keg to my kegerator. They are doing their job and prevent liquid from back flowing into my co2 regulator but the reason I gave only a 3 star rating is because I now have an annoying whistling sound when I pour. Still searching for a solution but I may have to switch to a double feed regulator.
Works great. Great for keeping beer out of the gas line
No problems so far. Seems to work.
Bought to go in-line on gas manifold
Love them. Keeping my gas line clean of liquid due to pressure equalizing.
No leaks, easy to hook up lines
Not much to say...it's a good check valve :)
I'm using the mini regulators for each of my kegs. Where would I put the check valve? {CO2 Tank Reg} > {Mini Reg} > {Check Valve} > {Keg} {CO2 Tank Reg} > {Check Valve} > {Mini Reg} > {Keg}
Either way as long as the check valve arrow points to the keg. Cheers!
I’d go check valve right before the keg. This way you prevent any back flow from the keg (liquid) into your gas line.
Correction to my previous answer. I initially didn't notice that this check valve is not rated for liquids like beer. That being the case the check valve needs to go between the CO2 tank regulator and the mini regulator.
I would put it between the keg and the gas regulator to avoid beer to get into the regulator
Always put a check valve between your liquid and your regulator. You never want to rebuild a regulator which has been flooded with beer.
Where do I connect it?
I installed check valves in the CO2 lines between the kegs and the manifold of regulators.
Between the ball lock and manifold or tank on the gas side. Make sure the arrow is going toward the keg so gas can flow to the keg.