With the development of craft beer, there are various packaging methods available, such as glass bottles, cans, PET bottles, wine bottles, and beer kegs. Packaging craft beer in beer kegs is a great way to maintain its freshness, and it has gained significant popularity. Typically, the beer is unfiltered when it is filled into beer kegs, making it an ideal option for parties.
When it comes to beer kegs, there are three standards: EURO, US, and DIN. Here, I am referring to stainless steel beer kegs. However, in addition to stainless steel kegs, you may also come across plastic beer kegs. While plastic beer kegs provide insulation, stainless steel beer kegs are more widely preferred internationally.
One crucial component of the beer keg is the spear, also known as the beer outlet valve. It is used for dispensing beer, and it works in conjunction with the screw seal on the keg’s neck. The spear also connects with the keg filling line and keg couplers. By injecting CO2 into the keg, you can easily fill and dispense the beer.
Based on the shape of the spear, there are types A, G, M, H, as well as S and D. Among the D type spears, the Sankey D spear is particularly renowned in the US.
From a structural standpoint, there are types A, G, S, D, U, M, H, Brazil D, and US Sankey D.
In terms of thread number, there are options with three threads and double threads.
Regarding the connection type with the keg, there are threaded options (A, G, S, D, U, M, Brazil D), options without threads (mainly A, G, and Sankey D), as well as welded options (H).
Lastly, there are both locked and unlocked varieties available.