Our certificates –

tested safety, proven quality

In order to sustainably enhance our quality, we subject our products to internal and external durability tests, laboratory investigations and tests conducted by independent materials testing institutes.

Depending on the specific requirements, all acceptances and pressure tests can be performed at our factory with the customer or their appointed expert present. We generate the necessary design testing documentation and end documentation together with quality assurance professionals and independent experts.

Our quality management system in accordance with ISO 9001: 2008 successfully passed an audit by TÜV Management Service GmbH in 1998. Since June 2008, our occupational safety and health management system has been certified in accordance with BS OHSAS 18001.

All rubber expansion joints are calculated in keeping with the Pressure Equipment Directive PED 97/23/EC; we are CE-certified up to category III. The design and dimensioning are in accordance with all applicable international standards such as DIN, ANSI, AWWA, BS and FSA. For deliveries to the Russian Federation, we can also demonstrate our products' conformity with the GHOST standards in effect there.

As a specialist company under the German Water Act, we are licensed to undertake independent installation and maintenance of expansion joints in pipeline installations carrying liquids hazardous to water.

We possess a KTA 1401 certification and are an authorised nuclear supplier for the VGB consortium.

In manufacturing steel accessory components, we adhere to the welding guidelines set forth in DIN EN
ISO 3834-3.


We are manufacturers. Made in Germany

In the professional field in Europe, the United States, South America, Russia and large parts of the Arab world, ditec has come to be synonymous with the highest "made in Germany" quality – true virtuosi of expansion joint construction.

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Renewal of certificate PED 97/23/EC

In order to sustainably enhance our quality, we regularly undergo numerous internal durability tests, laboratory investigations and tests conducted by independent materials testing institutes.

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We are problem solvers 

We specialise in difficult cases, and even cases thought impossible: unusual building gaps where no standard dimension will fit, or applications with strict pressure requirements, including large dimensions. We resolve challenges with special requirements. read more

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