304 and 304L stainless steel was specified for the cylindrical conical tanks (CCTs).

New tanks for Haacht Brewery

The rising popularity of its special beers meant that Belgium’s third-largest beer brewery needed to expand. New specialist stainless steel brewing tanks were required.
 
^ 304 and 304L stainless steel was specified for the cylindrical conical tanks (CCTs).

Text & images by Gpi
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Haacht Brewery, based in Belgium, is a family-owned brewery founded in 1898. The company turns out around 900,000 hl of drink annually, 700,000 hl of which is beer(1 hectolitre = 100 litres). This makes Haacht the third biggest beer producer on the Belgian market. On the back of rising popularity for its special beers, the business needed new storage tanks. Gpi was entrusted to carry out the project in collaboration with the brewery.

The assignment

Gpi received the order to supply 4 vertical beer tanks – so-called cylindrical conical tanks (CCTs) – each with a capacity for 520 hl. Nikki Vreven, Project Engineer at Haacht Brewery was involved throughout the entire process. “We approached Gpi on the recommendation of a colleague,” Nikki explains. “Gpi addressed all our requirements and even came up with additional recommendations. For example, they suggested a more suitable cooling jacket.”

Unusual project design

When a beer tank is being designed it invariably has to take into account the brewing process: for example, a tank needs additional space for CO2, the gas produced from the fermentation process. In order to keep the temperature of the fermentation process in check, for each section of the tank 4 cooling sections were added: 3 on the main body of the tank and 1 on the cone section. The pipes were concealed behind the stainless steel panels and emerge from the insulation at a single connecting point.

A lot of thought went into the physical arrangement of the tanks. Two tanks, for instance, are positioned next to each other, with an interconnecting platform above. For the production of the CCTs, 304 and 304L stainless steel was used to achieve the right appearance and, not unimportantly, the material is easy to clean and highly corrosion-resistant.

Transport and installation

The 6500 kg tanks were transported from the production plant in Lopik (Netherlnads) and then installed and anchored in place on-site at Boortmeerbeek in Belgium. Needless to say, Haacht Brewery also carried out its own thorough preparations to make sure that installation went smoothly. “Everything went without a hitch,” explains Nikki. “The tanks were hoisted into place by crane. It was precision work, but fortunately, it all went to plan.”

“The whole collaboration on the project was a success,” adds Nikki. “The supply of these 4 new beer tanks will go a long way to helping Haacht Brewery meet the growing demand for special beers.

The tanks, each with a capacity of 520 hl, will be able to produce 320 hl or 480 hl of beer, depending on the number of brewing batches. To you and me, that means around 12,000 glasses of beer per tank.”
 

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