What is the difference between a ball lock and a standard keg?

Answered by Rodney Landry

When it comes to kegs, there are two main types: ball lock kegs and pin lock kegs. Each has its own unique features and characteristics that distinguish them from one another.

1. Size and Shape:
Ball lock kegs are slightly taller and skinnier compared to pin lock kegs. This means they can be easier to fit into tight spaces or kegerators with limited room. On the other hand, pin lock kegs are slightly shorter and fatter, which can make them a bit more stable and less prone to tipping over.

2. Connectors:
One of the key differences between ball lock and pin lock kegs is the type of connectors used. Ball lock kegs require ball lock specific liquid and gas disconnects, whereas pin lock kegs require pin lock specific disconnects. This means that the connectors are not interchangeable between the two types of kegs. It's important to use the correct disconnects to ensure a proper seal and prevent leaks.

3. O-Rings:
Both ball lock and pin lock kegs have O-rings that help create a tight seal between the keg and the connectors. However, the O-rings used in ball lock kegs are slightly different from those used in pin lock kegs. It's important to regularly check and replace these O-rings to prevent any leaks or loss of carbonation. In my experience as a brewer, I've found that O-ring maintenance is crucial to maintaining the integrity of the keg.

4. Availability:
In terms of availability, ball lock kegs are generally more common and easier to find than pin lock kegs. This is mainly due to the fact that ball lock kegs have been more widely used in the homebrewing community. However, pin lock kegs can still be found, especially if you're willing to search online or check with local homebrew supply stores.

5. Personal Preference:
Ultimately, the choice between a ball lock keg and a pin lock keg often comes down to personal preference. Some brewers may have a preference for one type over the other based on factors such as ease of use, availability, or even aesthetics. In my own journey, I have used both ball lock and pin lock kegs and found that they both have their advantages and disadvantages. It really depends on what works best for your specific brewing setup and preferences.

To summarize, the main differences between ball lock and pin lock kegs lie in their size and shape, the type of connectors they require, the O-rings used, availability, and personal preference. Both types of kegs can be used effectively for homebrewing, so it's important to choose the one that suits your needs and preferences best.