Category Archives: Ball Lock

CMBecker Ball Lock QDs + Replacement O-Rings

cmbecker ball lock

There are at least a couple manufacturers of Ball Lock Quick Disconnects out there.  In my book there is… CMBecker and everyone else.  With orders over the years, I have mostly received CMB brand QDs, but periodically, I’ll get an off brand.  Don’t get me wrong, all of the off brands I’ve received have worked fine.  They just don’t look or feel as well made and they don’t seem to engage and disengage quite a smoothly.

With all that being said, I prefer CMBecker QDs.

I placed a recent RiteBrew order and the pictured QDs appeared to be CMB although the product description didn’t specifically mention the manufacturer.  I’m happy to report they are the real deal.

Check out RiteBrew’s Full Lineup of Keg Couplers – ball lock QDs from… $4.29

Here’s a quick look at CMB’s ball lock QDs with some thoughts about barb vs MFL and a look at the o-ring.

cln_img_9682Top down look – You can see the NSF Certification Seal

cln_img_9683Gas QD side view shows CMB

cln_img_9684Liquid QD side view shows CMB

MFL vs Barb.  My guess is that, generally, people prefer MFL flavors of QDs.  The big advantage is being able to easily disconnect and reconnect tubing.  That’s nice.  I prefer those for the liquid side.  Although I have MFL gas QDs, I generally prefer barbed QDs for the gas side of things. If an MFL liquid line works it’s way loose, a slow leak or drip is visible.  That’s an easy fix.  That’s not the case with gas.  If an MFL gas line works it’s way loose leaks are, of course, invisible.  Although they are a little more work, I like barbed QDs for gas runs in my kegerator.

5442These QDs have an internal o-ring gasket that keeps liquid and gas from leaking out the top side.  Those are relatively expensive at about 50 cents each – [Here KEG700A from MoreBeer].  There is different (non-OEM) gasket available that works well…

cln_img_9695On the left is an OEM o-ring on the right is a dash-013 silicone oring.  As you can see the silicone o-ring is slightly larger.

cln_img_9697Here’s my attempt to show the difference in thickness.  Probably not a lot of help.  Sufficed to say the non-oem option is a little thicker.

cln_img_9699Silicone o-ring in the QD

cln_img_9701Finally with the cap tightened down.  Notice the cap is slightly above the QD body.

They aren’t exactly the same, but they have worked great for me for quite some time and they are generally less expensive (on a per piece basis) vs OEM.

Keg Couplers at RiteBrew

013 Silicone O-Ring, 70A Durometer, Red, 7/16″ ID, 9/16″ OD, 1/16″ Width (Pack of 100)

Keg Ball Lock or Pin Lock Quick Disconnect Replacement O-Ring Gasket KEG700A

Related:

Pinned: Whiskey Barrels · $7:Spoon · Hops · VT DIPA Yeast · 16 Gallon Kettle

Just Released: Thermapen MK4 Thermometer

Also from RiteBrewRecipe Kits from… $14.29 · Omega Yeast – Vermont DIPA – Conan, Heady Topper & More · Universal Poppets… $2.39 · Vanilla Beans · Great Prices on CO2 Manifolds · 8 LBs of PBW – $5.30/lb · Great Prices on Bags of Malt · Fresh Wyeast Pre-Order · Bargain Bin

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Recent RiteBrew Finds:

Great Deal: Ball Lock Carbonator Cap – $9.99

carbonator cap

Use to carbonate and pressurize 1L and 2L bottles for easy transport of your draft homebrew. Or use to quickly force carbonate in a 1L or 2L bottle. A ball lock gas quick disconnect fits onto this.  At $9.99 this is a great deal.  Compare at MoreBeer

Cap for soda bottles with Ball-Lock valve for force carbonating.

863259 – The Carbonater – $9.99

RelatedBall Lock Keg Roundup

Pinned: Whiskey Barrels · $7:Spoon · Hops · VT DIPA Yeast · 16 Gallon Kettle

Just Released: Thermapen MK4 Thermometer

Also from RiteBrewRecipe Kits from… $14.29 · Omega Yeast – Vermont DIPA – Conan, Heady Topper & More · Universal Poppets… $2.39 · Vanilla Beans · Great Prices on CO2 Manifolds · 8 LBs of PBW – $5.30/lb · Great Prices on Bags of Malt · Fresh Wyeast Pre-Order · Bargain Bin

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Recent RiteBrew Finds:

Ball Lock Keg Roundup – New and Used, 5 and 2.5 Gallon

Ball lock kegs are becoming more and more difficult to find. Here’s a roundup of some of the best available sources for these kegs. Got a great keg find?  Submit a Tip

Adventures in Homebrewing: Used 5 Gallon, Rubber Handles5 Gallon Cornelius Keg (Ball Lock) UsedAdventures in Homebrewing is one of the most reliable sources for used 5 gallon kegs. Their price of $59.99 is also one of the best out there.

O-rings and poppets are check and replaced, if needed. These are pressure tested and guaranteed to hold pressure.

5 Gallon Cornelius Keg (Ball Lock) Used – $59.99

More Beer: Refurbished 5 Gallon, Rubber Handles

Cornelius Keg - Pressure Tested w/o Gaskets Replaced (Ball Lock)

Reconditioned 5 gallon ball lock kegs with rubber tops and buttons.  Washed and rinsed inside and out.  No soda syrup or residue is left behind.  These are also pressure tested and guaranteed to hold pressure.  These are marked down $11 per keg and ship for free.
Washed inside and out and all gaskets are replaced. Pressure tested and guaranteed to hold pressure.

Cornelius Keg – Pressure Tested w/o Gaskets Replaced (Ball Lock) KEG423 – $68.99 + Free Shipping

Adventures in Homebrewing: Low Profile, Ball Lock, No PRV

5 Gallon Cornelius Keg (Ball Lock) Used no PRV

Low Profile Ball Lock Kegs.  These are converted Pin Locks.  The lids on these kegs are pin lock style, meaning they do not have a manual pressure relief valve. The do have a safety pressure relief vale. These are the same type of lids that pin lock keg users use every day. If you need to relieve gas pressure, just depress the gas post.

5 Gallon Cornelius Keg (Ball Lock) Used no PRV – $49.99

Adventures in Homebrewing: Low Profile Ball Lock, with PRV

5 Gallon Low Profile Keg Used

Converted Pin Lock Kegs similar to the previous offering, with the exception that the lid has a manual PRV (ball lock style).  That means everything about these kegs is ball lock except the height and diameter (22-23″ tall and 9.5″ diameter)

5 Gallon Low Profile Keg Used – $59.99

Adventures in Homebrewing: Loose Handle and/or Base Ball Locks

Loose Handle or Base Ball Lockes

Available on these is sporadic.  When they show up, they generally sell out in short order.  As the name suggests they have loose handle and/or bases.  They are pressure tested and guaranteed to hold pressure.  Comes with a PRV (pressure relief valve) lid.  O-rings and poppets are replaced, as needed, to get these kegs to hold pressure.  At $39.99 this is generally the cheapest price you’ll find on a ball lock keg.

See our Tips Page (#19) for a step by step on repairing loose handles and bases.

Loose Handle/Bottom Ball Lock keg w/PRV Lid – $39.99

eBay – Various Offerings
eBay can be a good source for used kegs.  Standard eBay caveats apply.  Look at seller’s feedback and total cost delivered.  Also look for listings that offer eBay’s money back guarantee.  Search eBay for Ball Lock Kegs.  Our eBay tag may also have some recent offerings.

Your Local Homebrew Shop
I’ve heard ups on downs on this.  Some local shops are expensive and some have great availability and great prices.

New Kegs.  This post was originally published in 2012.  Since then availability of used kegs has dwindled and new keg offerings have come down in price.  Sometimes a brand new keg may be your best bet.

Adventures in Homebrewing: Brand New, NSF Certified Ball Lock Kegs

AIH New 5 Gallon Corny Keg Ball Lock

Brand New 5 Gallon Gallon Ball Lock Kegs.  These are… New, ISO 9001 Certified, NSF Certified, Ball Lock 5 Gallon Capacity and Have double rubber handles.  Typically double rubber handle kegs cost more compared to single strap handle kegs.  Dimensions – 25″ tall and 8.5″ diameter.

I own this keg and it’s great.  Check out my Hands on Review.  At the current sale price of $75, these are one of the best value in ball lock kegs on the market.

AIH New 5 Gallon Corny Keg Ball Lock – $75

A 2.5 Gallon Version is also available…
AIH New Double Rubber Handle 2.5 Gal Keg – $75

MoreBeer: New, Italian Made 5 Gallon Ball Lock Keg

Cornelius Keg - Brand New (5 Gallon)

from the Description: “We import these from Italy from long time manufacturer AEB. Attention to detail is perfect. Laser welds are perfect so it will always be easy to sanitize.” (keep reading)

Italian made kegs are generally thought to be the highest quality new kegs available.  MoreBeer’s offering is the best every day value in new Italian made ball lock kegs that I’m aware of.  They also ship for free.

Cornelius Keg – Brand New (5 Gallon) KEG418 – $119.99 + Free Shipping  Note: These were selling for $139 back when this post was first published in October of 2012

Adventures in Homebrewing: Single Handle New, Italian Made Ball Lock Kegs

NEW 5 Gallon Cornelius Keg Single metal handle (Ball Lock) (Rubber Bottom)

This offering is really just a point of reference for the previous keg.  This has a single handle.  I prefer double handles because they are easier to carry and you can invert this to drain and dry.  Along those lines double handle are usually more expensive.  This is on sale for $139.99.

Brand NEW 5 Gallon Cornelius Keg (Ball Lock) AEB Keg – $139.99

RiteBrew: New 5 Gallon NSF Certified Keg


AMCYL Brand New Ball Lock Kegs via RiteBrew.  NSF Approved.

5 Gallon Ball-Lock Keg, NSF Certified – $84.99

2.5 and 3 Gallon Kegs and smaller.  These are nice for serving your homebrew on the go.  Splitting 5 gallon batches for different treatments (yeast, wood and flavoring additions), for small batch kegging and for small space kegging.

Other options also pop up.  Check out our 5 Most Recent Keg Finds for recent finds.  Got a great keg find?  Submit a Tip

Although this is a Ball Lock Roundup.  I’ll also mention two pin lock options…

Related:

Pinned: Whiskey Barrels · $7:Spoon · Hops · VT DIPA Yeast · 16 Gallon Kettle

Just Released: Thermapen MK4 Thermometer

Recent Great Deals:

toppost:balllockkegroundup

100 Keg Dip Tube O-rings – $2.21 – 2 Cents Each

109 Buna-N O-Ring, 70A Durometer, Black, 5/16" ID, 1/2" OD, 3/32" Width (Pack of 100)

Dash 109 are the size for dip tube gaskets for both pin and ball lock kegs

109 Buna-N O-Ring, 70A Durometer, Black, 5/16″ ID, 1/2″ OD, 3/32″ Width (Pack of 100)

Keg O-Rings: [Dip Tube – Silicone] · [Post – Silicone] · [Lid – Silicone]

Related: Keg Repair Part Numbers · 5 Most Recent Keg Finds

Pinned: Whiskey Barrels · $7:Spoon · Hops · VT DIPA Yeast · 16 Gallon Kettle

Just Released: Thermapen MK4 Thermometer

More Amazon Finds:

Reconditioned 5 Gallon Ball Lock Kegs – $68.99 + Free Shipping

Cornelius Keg - Pressure Tested w/o Gaskets Replaced (Ball Lock)

Reconditioned 5 gallon ball lock kegs with rubber tops and buttons.  Washed and rinsed inside and out.  No soda syrup or residue is left behind.  These are also pressure tested and guaranteed to hold pressure.  These are marked down $11 per keg and ship for free.

Cornelius Keg – Pressure Tested w/o Gaskets Replaced (Ball Lock) KEG423 – $68.99 + Free Shipping

Related5 Most Recent Keg Finds

Also Consider… All Sale and Clearance Items – Selection Changes Regularlymorebeer.com homebrew and winemaking supplies

Pinned: Whiskey Barrels · $7:Spoon · Hops · VT DIPA Yeast · 16 Gallon Kettle

Just Released: Thermapen MK4 Thermometer

Recent More Beer Finds:

More Beer Picks:

New 2.5 Gallon Ball Locks… $75 – Back in Stock

These have been sold out for a while.  They are back in stock as of this posting…

AIH New Double Rubber Handle 2.5 Gal Keg

New NSF Certified 2.5 Gallon Ball Lock Keg

Brand new, double rubber handle 2.5 gallon ball lock kegs.  ISO 9001 and NSF Certified via Adventures in Homebrewing.  The double rubber handles are preferably to single metal strap handles – you have.. two handles vs one and they allow the keg to be inverted for draining.  14.5″ Tall x 8.25″ in diameter.

I have the 5 gallon version of this keg (See: Review) and like it very much.

AiH New Double Rubber Handle 2.5 Gal Keg – $119.99  $75

RelatedBrand New 5 Gallon Ball Locks… $75 · Hands On: Brand New, 5 Gallon Keg from AIH

Pinned: Whiskey Barrels · $7:Spoon · Hops · VT DIPA Yeast · 16 Gallon Kettle

Just Released: Thermapen MK4 Thermometer

Also from AIH… over 70 sale items including Perlick Faucets, Deals on kegs – new and used, pin lock and ball lock, recipe kits, kettles, pumps, jockey boxes, grain mill, taps, tower

Pinned: Whiskey Barrels · $7:Spoon · Hops · VT DIPA Yeast · 16 Gallon Kettle

Just Released: Thermapen MK4 Thermometer

Recent AIH Finds:

Bulk Keg Orings and Keg Repair Part Numbers

You can save a bunch by buying keg o-rings in bulk.  Here are some part numbers, background and tips on keg gaskets along with some part numbers and sources for additional keg repair parts.

Ball and Pin Lock Orings and Repair Parts

Silicone vs Buna-N
Silicone is softer than Buna-N.  Silicone also remains softer at cool temperatures.  Because of this, silicone is supposed to provide a better seal.

I use use Buna-N on my liquid posts because they are cheaper and I figure a leak is going to be very evident – Beer is… visible.  I use silicone on my gas posts because they seal better.  You cannot see leaking CO2, so I want these to seal as well as possible.  This also color codes posts for easy identification.  Black o-rings are liquid and orange o-rings are gas.

A Note on Gas O-rings I am quick to replace gas o-rings.  This leak is difficult to test for.  I lost an entire CO2 tank because of a bad gas o-ring.  In bulk, these are cheap, replace them liberally.

Dip Tube O-rings
Buna-N: 109 Buna-N O-Ring, 70A Durometer, Black, 5/16″ ID, 1/2″ OD, 3/32″ Width (Pack of 100)

Silicone: 109 Silicone O-Ring, 70A Durometer, Red, 5/16″ ID, 1/2″ OD, 3/32″ Width (Pack of 100)

Post O-Rings
Buna-N: 111 Buna-N O-Ring, 70A Durometer, Black, 7/16″ ID, 5/8″ OD, 3/32″ Width (Pack of 100)

Silicone: 111 Silicone O-Ring, 70A Durometer, Red, 7/16″ ID, 5/8″ OD, 3/32″ Width (Pack of 100) – use silicone for pin lock kegs

Lid O-Ring
Buna-N: 417 Buna-N O-Ring, 70A Durometer, Round, Black, 3-1/2″ ID, 4″ OD, 1/4″ Width (Pack of 10)

Silicone: 417 O-Ring, Silicone, 70A Durometer, 3-1/2″ ID, 4″ OD, 1/4″ Width, Red (Pack of 5)

Internal Ball Lock Quick Disconnect O-Rings
Silicone: 013 Silicone O-Ring, 70A Durometer, Red, 7/16″ ID, 9/16″ OD, 1/16″ Width (Pack of 100)

Theses o-rings aren’t exactly the same as the standard square sided o-ring that comes in quick disconnects, but they do work well for me and this is certainly more economical than buying a whole new quick disconnect.  Here is an exact replacement for CM Becker Ball Lock Quick Disconnects.

Pin and Ball Lock
I only use ball lock kegs, but it’s my understanding that pin locks and ball locks use the same o-rings.  On the post o-rings, the silicone seems to be the best choice.  The flexibility of silicone makes them work better than the Buna-N version on pin lock kegs.

Other Keg and Kegerator Rebuild & Replacement Parts

McMaster Carr is also a good source for bulk o-rings.  McMaster does charge an additional shipping fee.  Their website does not show that.  It’s added on after you place your order.  To get exact shipping charges you need to call or email McMaster for a quote.

McMaster Carr Part Numbers

  • Dip Tube O-rings Buna-N – 9452K172
  • Dip Tube O-rings Quad Sealing Buna-N – 90025K368
  • Post O-rings Buna-N- 9452K23
  • Post O-rings Silicone – 9396K24
  • Lid O-rings Buna-N – 9452K218
  • Lid O-rings Silicone – 9396K926
  • Internal Quick Disconnect O-rings Silicone – 9396K18

RelatedTips & Gear for Your Kegerator · 5 Most Recent Keg Finds

Pinned: Whiskey Barrels · $7:Spoon · Hops · VT DIPA Yeast · 16 Gallon Kettle

Just Released: Thermapen MK4 Thermometer

Recent Great Deals:

toppost:kegoringsandparts