Easy to install:
Screw the fitting onto the disposable CO2 cylinder. Connect the pressure reducer with a hose to the diffuser in the aquarium. Adjust the CO2 bubble count with the fine needle valve. The two pressure gauges indicate the cylinder and the working pressure.
The pressure reducer is equipped with an excess pressure safety valve. This ensures a safe release if the working pressure is set too high, without damaging the fitting. The diaphragm control of the pressure reducer ensures absolute reliability. Tip: With the purchase of the adapter JBL ProFlora Adapt u-m the fitting can be converted to a refillable cylinder system.
Function of the pressure reducer:
To reduce the pressure from the pressurised gas cylinder, a pressure reducer is screwed on (JBL PROFLORA u001 or m001). It reduces the 50-60 bar cylinder pressure to a working pressure of approx. 1.5 bar. This 1.5 bar is then dosed so precisely by a small hand wheel (fine needle valve) that individual CO2 bubbles are visible and countable in the connected bubble counter. On some pressure reducers the cylinder pressure and the working pressure are displayed on manometers. Strictly speaking, these displays are not absolutely necessary because the cylinder pressure does not slowly drop as with diving cylinders with compressed air and one would thus be warned when the cylinder is running low. Instead, the pressure stays at its maximum pressure and then drops to zero in no time. So unfortunately there is no slow decrease of the cylinder filling pressure. The working pressure would only be important if it had to be adjusted. But this is normally not necessary. But somehow, most people feel better if the two pressure gauges provide them with pressure indications.