Kegs in Series
Busy accounts may connect kegs in a series or in a chain to meet peak capacity demands. Chaining two or three kegs of the same product together allows all of the chained kegs to be emptied before beer stops flowing.
The first keg in the series will be tapped with a normal coupler. The second (and subsequent) kegs in the series require that the Thomas valve be removed from the gas side of the coupler.
Tap the first keg with the normal coupler. Instead of sending the beer line from this first coupler to the bar faucet, connect it to the CO2 inlet on the second keg’s coupler. Subsequent kegs can be attached the same way.
When pressurized and pouring, beer flows from the first keg to the second and on to the third before it travels to the faucet. Once set, this arrangement will pour the contents of all the chained kegs before it runs empty.
A series arrangement should only be used in accounts that will “turn,” or empty kegs rapidly. The account needs to completely empty the entire series on a regular basis. Failure to empty the series completely leaves old beer in the system. The diagrams below illustrate the progressive emptying of chained kegs.