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Gpi builds a demineralized water tank on site for USG in Geleen

Gpi has constructed an on-site tank for USG Geleen with a capacity of no less than 7300m3. The tank has been designed to EN 14015, the European norm for flat-bottomed tanks.

The new buffer tank will provide demineralized water for the various companies at Chemelot for the coming years.

“Thanks to the professionalism at the GPI construction manager and good cooperation with the project team members of the contractor and subcontractors, we’re more than happy with the result.” Piet Beenhakker, Project Leader at USG.


The project comprises a flat-bottomed tank with a sump. And that sump alone has a volume of over 8000 litres. The tank also has a conical roof built to the EN 14015 standard that has a vertex of 158 degrees, a diameter of nearly 23 metres, is strong enough to walk on and takes the overall height to over 20 metres. That gives a gross volume of approximately 7600m3 and a net volume of about 7300m3.

Both stainless steel 304 and duplex steel LDX2101 were used for the tank. The lower part of the body is of LDX2101, which is stronger than SS304 and allows a thinner structure while retaining the structural strength. The tank floor, top and upper part of the body are made of SS304.

Working together with Emerson Process Management and Bilfinger Industrial Services, Gpi has provided a complete blanketing system for the tank along with the associated safety valves. In addition, Gpi has provided the intake and spare valves.

About USG Industrial Services

USG Industrial Utilities handles the purchasing, production, distribution and sales of electricity, steam, technical gases, nitrogen, air and water for companies on the Chemelot industrial complex.

If you would like to know more about USG Industrial Services, go to www.usg.company