Pressure testing

Many components, such as pipes, hydraulic systems, etc., operate at very high pressure. This represents a continuous danger for people and machines. In order to minimise this danger, such components are often subjected to a high-pressure test before being put into service, whereby the expected operating pressure is usually exceeded by a factor of at least 1.3.

If all connections and materials withstand this pressure for a specified time, it is assumed that this will also be the case for the service life of the test object.

With our modern high-pressure testing equipment, it is possible for us to pressurise your components with water or oil. The pressure range is between 125 and 900 bar.

During the test, the tester can continuously monitor the current pressure using a display outside of the pressurised area. Using modern evaluation software, the complete testing process is saved digitally and can then be followed to the second. This measurement is accurate to 0.1 bar.


From its inception, Klaus Gross GmbH & Co. KG has been in the business of non-destructive material testing, which allows us to look back over a treasure-trove of 30 years of experience. This experience, combined with a high degree of flexibility and highly motivated staff, has characterised us from the beginning.

We can carry out any process we offer either at our premises or at the client's location. This applies to HT, PT, MT, RT, UT or VT tests; on request, we can provide a complete evaluation and documentation directly on the spot. We can ensure this as we use only personnel qualified at Level 2 in our operation. For test supervision, there is also a Level 3 tester in house.

For many years, our range of activities has included the inspection of drilling rods. In this respect, we have trained some of our employees in the NS2™ standard, which ensures the highest level of quality.
See the sub-menu points for a quick overview of the testing processes we carry out. Our skilled personnel are available for questions at any time.