What Keg Connector Do I Need?
One of the most common questions people ask when setting up a beer dispense system is:
“Which keg coupler do I need?”
Different breweries use different keg connection systems, and using the wrong coupler means the keg simply won’t connect to your dispense setup.
This guide explains the most common coupler types used in the UK and Europe, and which kegs they are typically used with.
What Is a Keg Coupler?
A keg coupler is the connector that attaches your beer line and gas line to the keg.
Once connected, the coupler allows gas pressure to push beer from the keg through the beer line and out through the tap.
Each coupler type is designed to fit a specific keg valve system, so it’s important to choose the correct one.
Common Keg Coupler Types
The most common keg coupler systems are:
- A Type
- D Type
- S Type (Sankey)
- G Type (Grundy)
- M Type
- U Type
- KeyKeg coupler
Below is a quick overview of which couplers are typically used with different keg brands.
Keg Coupler Compatibility Guide
Coupler Type |
Commonly Used With |
|---|---|
| A Type | Guinness (UK), Camden Hells |
| D Type | Some American and international breweries such as Anchor |
| S Type (Sankey) |
Common on European lager brands and UK breweries such as Fosters, John Smiths, Strongbow, San Miguel, Birra Moretti, Peroni, Cruzcampo, Kopparberg |
| G Type (Grundy) | Coors, Carling, Staropramen, Madri, Becks, Thatchers, Stella Unfiltered |
| M Type | Used by a small number of German breweries such as Schneider and Veltins |
| U Type |
Stella Artois (UK) Guinness (Ireland) |
| KeyKeg Coupler | Designed specifically for KeyKeg disposable keg systems |
Coupler Quality – Why It Matters
Not all keg couplers are manufactured to the same standard.
Lower-priced couplers are often produced using cheaper components and lighter materials. While they may appear similar, they can wear more quickly or fail to seal properly over time.
Higher-quality couplers are typically manufactured with stronger components and more precise fittings, which helps ensure reliable performance and a longer service life.
When choosing equipment for your beer dispense system, reliability and durability are important factors to consider.
Couplers and Cleaning Bottles
If you use beer line cleaning bottles, it’s worth noting that not all couplers will fit every cleaning bottle.
Some couplers are manufactured with slightly different fittings or dimensions, which means they may not connect securely to the cleaning bottles.
If you plan to use your coupler with a cleaning system, it’s always best to ensure the fittings are compatible.
Need Help Choosing the Right Coupler?
If you’re unsure which coupler fits your keg, it’s always best to check the keg valve type or ask for advice before ordering.
Choosing the correct coupler ensures your dispense system works safely and reliably.