System Overview
A tank beer installation may be a new concept to you, but it is an efficient way of storing and serving draft beer. On this page, we briefly explain how this system is installed.
Below, we outline the main components of a tank beer installation and how they work together. The schematic drawing clearly shows how each part is connected within the system. Together, these elements form a reliable installation designed for optimal performance and perfectly served beer.
What is a tank beer system?
A tank beer system is a way of storing and serving beer in bulk instead of using traditional kegs. The beer is delivered directly from the brewery to a hospitality venue and transferred into specially designed beer tanks. From these tanks, the beer is supplied directly to the bar and beer taps.
Tank beer systems are particularly suitable for bars, restaurants, stadiums, event venues and other locations with a high beer volume. By replacing multiple individual kegs with one larger beer tank, the system simplifies beer handling, reduces packaging and provides an efficient way to store and serve large volumes of beer.
Schematic installation
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Components
1. Insulated tank
2. Beerliner
3. Pressure regulator
4. Safety valve
5. Piercing unit
6. Air compressor
7. Cooling pump
8. Cooler
9. Python
10. Frame
11. DSO
12. Beer distributor
Why tank beer?
Higher efficiency
Thanks to reduced handling when moving and connecting kegs
More efficient beer storage
By requiring less space for larger volumes
Less beer waste
as you no longer need to tap a new keg every 50 litres
Consistent beer quality
ensured by continuously cooled tanks and an inliner that prevents air contact
More sustainable solution
by eliminating the need for CO₂ usage
Boosting Sales
Visible beer tanks create a strong visual impact, deliver ultra-fresh beer, and boost sales
How does a tank beer system work?
A modern Duotank tank beer system consists of one or more beer tanks, typically with capacities of 250, 500 or 1,000 litres. Inside each tank is a flexible, airtight beer inliner in which the beer is stored.
The beer itself does not come into contact with the tank wall. Instead, it remains completely enclosed inside the inliner. Compressed air is introduced into the space between the stainless-steel tank and the inliner. The air gently compresses the inliner and pushes the beer through the beer line towards the tap.
Because the compressed air never comes into direct contact with the beer, no additional CO₂ is required to push the beer from the tank to the tap. The beer remains separated from outside air throughout the process, helping to preserve the quality and characteristics intended by the brewery.
When the tank is empty, the used inliner is removed and replaced with a new one, preparing the tank for the next delivery.
Tank Beer Installation Guide
Watch the demonstration video to see how to set up a tank beer system from start to finish.
Need clarification?
Do you need to hire a specialist to install a tank beer system?
Our advice is to contact Duotank or a company that specializes in connecting keg and tank installations. If you have the necessary knowledge, materials, and tools yourself, you can also make use of this instructional video.
When purchasing a tank beer system, do you need to buy the cooler and compressor from Duotank?
No, the Duotank cooler and compressor are not mandatory. The cooler itself is a standard water bath cooler, and the air compressor simply needs to operate oil‑free. Duotank even recommends sourcing these components from a local supplier to ensure faster and easier service.
What is the operating pressure of the system?
The maximum pressure at which a tank beer system operates is 3 bar, which is controlled by the safety valve. The actual operating pressure depends on the distance and height difference between the tank and the tap. In most cases, the system runs at an operating pressure of approximately 2 bar.
Does Duotank supply the inliners?
Yes, you can order the inliners from Duotank. You can contact us here.
Download the Tank Beer brochure here
Download your brochure here for more general information about tank beer systems.
Download the Tank Beer product catalogue here
Download the product catalogue here for more technical information about the tank beer system.
