needle valve

[ciscube]

However, I noticed a slight change in bubble count over the months, probably due to heat expansion and contraction of the knob on the needle valve. So just check regularly.

I suspect this is due to the pressure in the CO2 decreasing over time, usually when it is going to be finished, causing the CO2 count to drop.

[|squee|]

Er no, that change occured in my CO2 tank, no change in pressure of gas in the cylinder so far

[cutenk]

No idea there. So far it's been consistant, much much better than my previous manual regulator. However, I noticed a slight change in bubble count over the months, probably due to heat expansion and contraction of the knob on the needle valve. So just check regularly.

from my last experience, try to change the o ring in the nedle valve with new and better quality,
perhaps if you can find teflon o ring it will cause a better result.


about my last post. i already connected them to divide 1 co2 tank tao suplly 3 of my plant tank
the interesting one using this precision needle valve is;
you can see the different between 1 bps, 1,5bps. etc.

regards,
yudy