I would have only been able to fit 6 if i had gone pin lock.
Difference between ball lock and pin lock.
This diagram is from an older issue of zymurgy magazine and i think it not only shows where the differences between ball pin lock kegs lie but also just an overview of all the keg components.
Apart from the price difference this may be the most important point depending on your keezer fridge.
Pin lock cornelius kegs.
A description of the differences between a pin lock and ball lock corny kegs.
A big difference are the prv pressure relief valve functions between the two styles.
Both have automatic safety prv valves.
Created on february 13 2012 using flipshare.
You can use a ball lock lid on a pin lock keg and vice versa.
Generally speaking both ball lock and pin lock style lids are the same dimension and are interchangeable.
This is the main argument against ball lock fittings but the problem is easily avoided if you know about the difference between the two fittings that at first look to be the same.
Pin lock systems use a style of fitting in which the gas in and liquid out fittings are also different.
I might add that pin locks are slightly larger and a little shorter than ball locks.
I thought this was worth sharing since we get a lot of questions at the aha about the differences between ball lock and pin lock kegs.