Co2 Working Pressure

[Aronnie]

Hi

I have a dual stage regulator from co2 Art with adjustable working pressure but whenever I adjust the needle valve to get more bubbles per second my working pressure decreases meaning I have to increase the working pressure again. Is this correct?

Thanks

Aron

 

[xim]

It is called "droop".

It's normal for it to decrease a little bit in the injection period.
And it should increase back up when the solenoid is closed.

My Azoo reg drops about perhaps 1-2 PSI (not sure I just see the
needle is not at the same place as when the solenoid shuts),
30 PSI working pressure.

meaning I have to increase the working pressure again. Is this correct?

I don't know, try reading this http://www.pacetoday.com.au/features/how-to-read-a-regulator-flow-curve .

 

[Andy Thurston]

depends on the regulator. If its a regulator aimed at the aquatic market then yes its fairly normal. If its a good quality reg used for a custom build then no its not normal. I can open my needle valve fully without the tubing, bubble counter, and diffuser connected. and my pressure does not drop when i open the solenoid, it stays exactly where i set it.
Does it matter when your adding co2 to a fishtank? probably not as long as it remains constant while the solenoid is open. and the pressure is the same everyday

 

[Aronnie]

Thanks for all your replies! Mine is around 43psi and bubble count is around 2 so I'll wait a few days and see if the working pressure is the same everyday. If not, I'll start worrying!! Ha