The Etzel salt dome in North Germany counts among Europe's largest gas storage sites. For three years, the Etzel-Kavernenbetriebsgesellschaft GmbH & Co. KG (EKB) worked on the construction of gas-processing facilities, which went into service in 2012. The complex consists of various facilities for gas storage and withdrawal. To provide effective and reliable thermal-acoustic insulation on the pipework and other installations, ArmaSound Industrial System from Armacell was used. The insulation system was installed by Kaefer Industrie GmbH (Bremen, Germany)