[DW]

What's the difference between a firestone and cornelius keg?  They look the same, but the posts are different. 

[Jimmy K]

Edit: Pay no attention, the following answer is mostly wrong... Read down

Different manufacturers. Corny kegs were mostly used by Pepsi. Firestone were prefered by Coke.  The Corny kegs have ball locks and are generally more popular and a little more expensive (because supplies are running out and these are what many people have).  Both work just fine, but you'll want to pick one style and stick with it for your homebrewery.

Firestone kegs are also called pin locks - although since ball locks are more popular some companies are replacing the posts with ball lock posts.

Other differences - Corny kegs have a pressure relief valve in the lid. On pin lock you must press the gas valve.
Pin lock kegs are slightly shorter and wider than corny kegs.

My LHBS owner loves pin lock kegs because the gas and liquid posts are easier to distinguish. On ball locks they are different diameters, but very close.

[denny]

I'll have to check, but I think I've got some Firestone ball locks.

[a10t2]

Both work just fine, but you'll want to pick one style and stick with it for your homebrewery.

Given the prices of kegs nowadays, it's probably less expensive to put threaded fittings on all your lines and buy whichever you can get for less at the time.

[The Professor]

I'll have to check, but I think I've got some Firestone ball locks.

I definitely have some Firestone ball locks...they were some of the first kegs I acquired 20 some odd years ago.

[Jimmy K]

I'll have to check, but I think I've got some Firestone ball locks.

I definitely have some Firestone ball locks...they were some of the first kegs I acquired 20 some odd years ago.

Maybe Firestone made both

[euge]

I also have some firestone ball-locks. Always wondered if some of them were originally pin-locks that have been converted?

[Jimmy K]

I also have some firestone ball-locks. Always wondered if some of them were originally pin-locks that have been converted?

There are lots of 'converted' ball locks on the internet. I've seen pallets of them at homebrew shops, but that's a recent response to the short supply of ball lock kegs. I'm not sure about ones purchased 5 or more years ago.

[hopfenundmalz]

What's the difference between a firestone and cornelius keg?  They look the same, but the posts are different.

I think you mean that these are ball locks, but the posts have detail differences.

For ball locks, you need to know that there were several manufactures, Firestone (I know I have some of those), Spartanberg, Cornelius and John Wood (never seen those). There are at least 3 different posts designs for corny kegs, Northern Brewer calls those A,B,C type. Williams Brewing also has a breakdown by manufacturer.

http://www.northernbrewer.com/connect/2011/08/choosing-the-correct-keg-parts/
Pictures
http://www.northernbrewer.com/shop/catalogsearch/result/?q=keg+post+assembly
http://www.williamsbrewing.com/MALE-POSTS-POST-PARTS-C297.aspx



Pin locks are shorter and wider, I do have one that was converted to ball lock.

[Joe Sr.]

Jeff is correct.  There are different manufacturers of ball locks.

The posts will be different in the threading as it attaches to the keg, the poppets are different, the pressure relief valves are also different in some cases.

The posts have different overall heights, but the ball lock fittings are all the same.

Nowadays, with the universal poppet, some of the differences are less important.  But, if you take them all apart at once you need to get the right posts and poppets back to the right kegs or they don't fit and seal correctly.  I know from experience.

Converted pin-locks will be a different height and width from ball lock kegs.  I believe shorter and squatter.

[euge]

I only do one keg at a time!

[hopfenundmalz]

I only do one keg at a time!

From learning the hard way, me too.

Euge - like the tagline from Feynman.

[denny]

If you're thinking about switching posts, Mike Dixon has some excellent info about thread sizes here...

http://www.ipass.net/mpdixon/KegThreadSizes.htm

[DW]

I got my kegs from kegconnection.com.  As I was looking at replacement post parts I noticed that they sale two types of "ball locks", which are firestone and cornelius.  But you guys are mostly saying that only cornelius makes ball locks.  Check out this website:          http://stores.kegconnection.com/Categories.bok?category=*Parts%3AKeg+Parts%3APosts%2FPoppets%3APosts%2C+Ball+Lock           

One of my posts, which I'm assuming is Firestone has 12 points.  My other keg looks to be cornelius.  But the pressure relief valves are the same, as are the lids.  Maybe I have keg that was converted and still using firestone posts.  I really don't understand this stuff very well. 

[villagebrewer]

What do most homebrewers use... ball or pin lock soda kegs?  What would you recommend I purchase?