What is the primary function of a beer pump?

The primary function of a beer pump is to control the flow rate while maintaining the brewery-applied pressure. This is particularly important in ensuring that the beer is served at the correct carbonation levels and with the right amount of head, delivering a consistent and quality drinking experience. The pump is responsible for moving the beer from the keg to the tap while allowing for precise regulation of pressure, which affects how the beer is dispensed, ensuring that the flavors and aromas are preserved.

While dispensing beer directly from the keg is an essential aspect of a beer pump, it is the control of flow and pressure that plays a crucial role in overall quality. Similarly, chilling beer or filtering impurities are functions that may take place in different contexts or equipment but are not primarily associated with the beer pump itself. Thus, the ability to manage flow rate and maintain pressure highlights the beer pump's vital role in serving beer correctly and efficiently.