otuatail said:
from pjbiker
Then just get 2x CO2 and not N2, with a standard CO2 regulator
Is this not defeating the object here. What I wanted was both Co2 and N2. I was wondering if the bottles would empty together and other problems. You are sugesting just to use two Co2 and not N2
Is this because N2 is no good?
Are the fittings on my barrel even a standard?
CO2 is what most of us use, as it both carbonates and pressurises. I meant get 2x CO2 bottles and use 1 at a time, so you can exchange 1 while using the other.
If you really want to use Nitrogen, to give the 'smoothflow' then get it as a 'mixed' gas bottle. The fitting for mixed gas is different so you will need either a different regulator, or a converter for a standard CO2 regulator.
I don't know what the fitting is on a pure N2 bottle but it would never be used for dispensing beer anyway. N2 does not dissolve to create carbonic acid, so the beer would taste flat.
Someone posted in the last couple of weeks stating what was available from BOC in terms of CO2, N2 mixes by percentage.
There would be little point trying to attach both a CO2 and N2 to the same keg and adjusting their partial pressures. You would need 2 seperate regulators anyway.
I don't know what keg you have but most have an 'S30' valve to attach a 'hambleton bard' cylinder to. I know that a 3/8" HDPE plastic beer line can be shaved down to fit in one of these and used to top up pressure from a cylinder. The other common type of valve is a 'pin valve' or 'S20' I think. This looks the same but has a central 'pin' tube to pierce 8g CO2 bulbs. 3/8" pipe (shaved down a bit) work in these too.
Perhaps the term 'pub gas' should ring a bell with your supplier.
