10PSI == 69kPa == 0.69 Bar
12PSI == 83kPa == 0.83 Bar
20PSI == 138kPa == 1.38 Bar
So with the KK spundie, I could pressurise an empty keg, then attach the valve, and twiddle the knob until it slowly (over say an hour) drops back to where I want it ?
Based on very limited experience, you...