nasty_rabbit
Well-Known Member
I picked up an inexpensive regulator from Harbor Freight for my back up CO2 tank but the low pressure gauge reads in Litre/min(Cuft/hour). Is there a conversion to psi for this or do I need to replace the gauge.
It sounds like you have a flow meter, not a regulator.
No there is no conversion.
If it is a flow gauge it will not function properly as you intend. If you change the gauge To psi and set it for 10 psi, it will come out at 10 psi but never stop flowing. You will probably blow up a keg if it's left attached.
If it is a flow gauge it will not function properly as you intend. If you change the gauge To psi and set it for 10 psi, it will come out at 10 psi but never stop flowing. You will probably blow up a keg if it's left attached.
i have three of the same regulators from harbor freight. the gauges are mislabled- the inner ring of numbers on the low pressure gauge is actually PSI. the outter ring is MPA or BAR (forget which). no idea why they printed flow rate on a pressure gauge... thats china for you.
And here are some measurements. I just hooked a psi gauge to my regulated line and got
11 liters per min. = 10psi
14 liters per min. = 20psi
18.5 liters per min. = 30psi
Just useful info
onthekeg said:My local brewery carbonates with a flow meter instead of a psi gauge into their carbonation tank. I have never understood how that works but it does. I believe it will flow at a faster rate and once it becomes carbed up the tank will slowly stop absorbing the carbonation at the setting they have on the gauge. Different.
There is no correlation between flow rate and psi.
There is no correlation between flow rate and psi.
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