A tool used to determine the appropriate length of tubing required to deliver draft beer from the keg to the faucet at a desired pressure and flow rate. This calculation accounts for factors such as the beer’s carbon dioxide volume, the dispensing pressure, the resistance offered by the tubing material, and any elevation changes in the system. For example, a system maintaining 12 PSI of pressure and using standard 3/16″ inner diameter beer line may require a significantly different line length than a system at the same pressure utilizing a wider diameter line.
Properly balancing a draft beer system is crucial for preventing issues like foamy beer or flat beer. Accurate determination of the correct line length ensures that the pressure applied to the keg is sufficient to maintain the beer’s carbonation level, while also allowing the beer to flow at a controlled rate, minimizing turbulence and preventing excessive foaming. Historically, achieving this balance required trial and error, but such tools now streamline the process, saving time and reducing waste.