Category Archives: Keg Parts

Update: Orings and Keg Repair Part Numbers – now Includes Perlick 525 Parts

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

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:

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:

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

Back in Stock… Replacement Keg Lids – $13.79

Replacement Homebrew Keg Lids

Replacement Keg Lids via RiteBrew.  Includes Pressure Relief Valve/PRV and O-Ring.  This is a great deal on replacement lids.

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

843331 – Replacement Keg Lid – $13.79

Related: Keg Repair Parts · Tips and Gear for your Kegerator

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:

Reader Tip: 5 Universal Poppets

Thanks to Twitter Follower Daniel for this tip!  Connect with HBF on Twitter – Here

universal keg poppets

Universal Keg Poppets

5 universal keg poppets by Happybrew

I use universal poppets exclusively when rebuilding kegs.

Tip: These fit the vast majority of kegs without issue.  I have had a couple kegs that ended up being a bit too tight with these.  It’s an easy fix.  Use a pair of wire cutters or Nipper Pliers to trim the universal poppet.  I suggest taking off about half of a coil and testing.  You want the QD to slide on easily and for it to reliably hold pressure when the QD is off.  Taking off a half of a coil and testing helps you make sure you don’t end up making the poppet too loose.

5 pieces / lot,Universal Poppet Valve for Cornelius Keg

Also ConsiderUniversal Poppet – $2.19 – via RiteBrew

RelatedBulk Keg Orings and Keg Repair Part Numbers · Tips and Gear for your Kegerat

Great Deal: Universal Poppets – $2.19 + Tip

843332 - Universal Poppet

RiteBrew has Universal poppets for $2,19 each.  This is the best price I’m aware of for universal poppets.  Use to replace leaky gas and liquid poppets.  I use universal poppets exclusively when rebuilding kegs.

Tip: These fit the vast majority of kegs without issue.  I have had a couple kegs that ended up being a bit too tight with these.  It’s an easy fix.  Use a pair of wire cutters or Nipper Pliers to trim the universal poppet.  I suggest taking off about half of a coil and testing.  You want the QD to slide on easily and for it to reliably hold pressure when the QD is off.  Taking off a half of a coil and testing helps you make sure you don’t end up making the poppet too loose.

Check out Recent RiteBrew Finds along with the “picks” section below for more great deals from RiteBrew.

843332 – Universal Poppet – $2.19

RelatedBulk Keg Orings and Keg Repair Part Numbers · Tips and Gear for your Kegerator

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: