The beer Pressure-reducing-valve is used in conjunction with the beer faucet, beer tower, wine spear and wine label. The beer is fed into the chiller by the action of the keg connector and the wine spear After the chiller is cooled, the mixing valve valve is opened. The CO2 pressure gauge is turned on so that CO2 is pressed into the keg and the beer is released from the outlet tap.
| CGA320 connector | 1 |
| Outair 5/16 straight-through connector | 1 |