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NIVUS is developer, manufacturer and supplier of instrumentation for the water industry. For more than 45 years NIVUS works in the field of flow measurements and is one of the worldwide leading companies in this sector. The product portfolio, among other devices, includes units for flow measurement, flow velocity detection, level measurement, pressure measurement and water quality measurement. Moreover the product range comprises software for recording, logging and evaluation of data. The range of products is completed by an extensive process control system. One of the NIVUS main areas is flow measurement as well as the various flow meters. Not only development and production of devices benefit from company know-how and experience, but also services such as the implementation of complete measurement campaigns. Installation and initial start-up of flow instruments and other NIVUS products as well as competent support on how to operate our pressure, level and flow meters are more parts of our portfolio.

Endress+Hauser is a global leader in measurement instrumentation, services and solutions for industrial process engineering. We provide process solutions for flow, level, pressure, analytics, temperature, recording and digital communications, optimizing processes in terms of economic efficiency, safety and environmental impact. Our customers come from various industries, including chemical, food & beverage, life sciences, power & energy, primaries & metal, oil & gas and water & wastewater. Serving comes before earning: this founding principle has shaped our company to this day. That’s why we are always close to our customers with a worldwide network of sales and production centers.

ISO 9001, DIN EN ISO 17025 (DAkkS), Creditsafe 2018 ID: 001011271, Certificate No: Zl 1307 for the PROFINET 10 Device, Science Friendly Company, Qualitätspreis NRW 2002

ATEQ is a global leader in industrial leak and flow testing equipment, offering innovative and reliable solutions to ensure product quality, safety, and compliance. Founded in France in 1975, the company has expanded its presence to over 40 countries, with a strong network of subsidiaries, distributors, and service centers worldwide. ATEQ serves a wide range of industries including automotive, aerospace, medical, electronics, packaging, and consumer goods, supporting both large-scale manufacturers and specialized producers.
The company’s core expertise lies in developing high-performance instruments for leak testing using technologies such as pressure decay, mass flow, and tracer gas methods. In addition to leak testing, ATEQ also provides flow testing equipment, battery testing solutions for electric vehicles, and TPMS (Tire Pressure Monitoring System) tools for the automotive aftermarket. Its testing systems are known for their accuracy, speed, and ease of integration into automated production lines.
With decades of experience and a commitment to innovation, ATEQ customizes solutions to meet the specific needs of each client, ensuring reliable results and enhanced production efficiency. Backed by responsive technical support and global service coverage, ATEQ continues to set industry standards in non-destructive testing technology.

High quality leak test device - ideal for a professional leak test
Are you looking for a modern leak detector ? APT is the right contact for various types of leak testing as a qualified leak test device manufacturer in Germany. The wide range of services begins with the development and manufacture of modern leak testing devices for vacuum or overpressure processes and extends to expert advice with regard to differential pressure measurement or flow measurement.
Leak test equipment and other systems for leak testing
We offer you systems for leak testing with air and many other technical solutions, which you can rely on at any time one hundred percent. We also implement complete facilities for leak tests with air and other applications, including commissioning, instruction or training courses.
Leak testing devices PMD02: reliable, intelligent, flexible
The leak detector of the PMD02 series has proved itself on the market as a system within industrial testing Technology. Worldwide more than 1000 leak test devices are used by well-known companies. They convince with high flexibility and robustness as well as easy Operation. The PMD02 is used to test the tightness of hollow bodies such as pumps, motors or gearboxes. Up to 100 different test programs are available to adapt to your specific test Tasks. Depending on the version, up to three test channels can work simultaneously. This leak detector can be used for both, differential pressure and mass flow processes or a combination of both methods. In addition, it is possible to store and evaluate the last 100 measured values (min / max values, average, standard processing). Thanks to a wide range of equipment and the use of various measuring methods, all test tasks can be carried out precisely and quickly by vacuum areas up to 10 bar overpressure.
Flow meters PMF01: Multitalent for various tasks
Our PMF01 series flow meter has also established itself as a robust test system on the market. The models are used for the measurement and classification of air flows (leaks in the automatic production process) and convince with multi-channel capability and compact design. The special design and the availability of 32 different test programs also enable the realization of individual Solutions. The PMF01 models can measure larger mass flows, simultaneously at several test sites. In this case, the mass flow method is used as a measuring principle, in which the measurement can be carried out at low or high pressure. For the purposes of testing, the measurement curves of the individual channels can be graphically displayed on the integrated LC Display. These flow testers are equipped with two RS232 interfaces as standard. Optionally a computer connection via 3964R or ASCII is possible.
APT - leak test equipment manufacturer in Germany and specialist for other testing techniquesFor more than 20 years, APT Angewandte Prozessortechnik GmbH has been your competent partner when it comes to reliable test equipment for leak testing, differential pressure measurement and related fields. Together we find the fastest and best solution.
With us you get not only various test devices for different application fields, but also useful accessories, for example test air filters or software kits. You have questions about a specific leak test device or other APT products? Our employees are at your disposal with extensive expertise as a competent contact person.