ADVERTORIAL TECHNOLOGY IN ACTION


New Challenges for Test


test stands for function tests in the area of civil and military aviation technology, and for product tests of consumer electronics during the production process. Such complex products require test systems with a high data throughput and extremely precise clock and trigger signals for synchronizing the functions of the test object. These devices can be easily integrated into IIoT networks and offer enough data bandwidth to connect and synchronize the test devices to and with the rest of the production line. Additionally, detailed data is transferred for quality management as well as for documentation. Thanks to its fast data transfer rates with PCIe, paired with the implemented high-precision clock and trigger architecture which synchronizes the cards with each other, PXI Express is very suitable for such test, measurement, and simulation tasks. nVent SCHROFF products are available from specialist electromechanical distributor Foremost Electronics.


and Measurement Systems P


XI Express systems are suited for the tough requirements in simulations for autonomous driving, on


Foremost Electronics  01371 811171  sales@4most.co.uk  www.4most.co.uk


New ABB flowmeter will aid hydrogen fuel cell research in automotive sector


product that will help the automotive industry optimize the use of hydrogen to power electric drive trains. The Sensyflow FMT700-P Compact thermal mass


A


flowmeter is the latest addition to a product range already proven for measuring engine intake air on test benches. The new flowmeter can now be used to fine- tune the efficiency of cells that combine hydrogen and air to produce electrical power, emitting only water in the process. The P-Compact’s capability to analyze the


performance of hydrogen fuel cells is of great interest to the automotive industry because hydrogen offers one of the most promising ways to eliminate carbon emissions from heavy transport such as trucks and buses. Gerrit Weppner, Global Product Manager for Thermal


Mass Flowmeters at ABB, explains why the new flowmeter is so well suited to such research: "The P


s governments worldwide seek new ways to decarbonise transport, ABB has developed a


Compact measures the mass of streaming gases directly in the unit kg/h. This means it is fast and the results are immediately comparable because they do not have to be compensated. The P Compact is also highly accurate over a wide measuring range of 80 to 5000 kg/h for a device of nominal diameter 200 mm. In a hydrogen fuel cell test, it will measure the amount of air that enters the fuel cell to combine with hydrogen, and the response time is less than 25 milliseconds which makes it ideally suited for detecting rapid load changes." The P Compact is compatible with other products in the


Sensyflow range, and it is as well suited to conventional engine research such as evaluating turbochargers and components such as throttle valves, intake fans and air filters as analyzing hydrogen fuel cell performance. The compact design integrates supply and evaluation functionality, so it is easy to install with just one cable.


ABB  www.abb.com Gerromatic radial shaft seal minimises wear and maximises service life T


he Gerromatic radial shaft seal from Freudenberg Sealing Technologies comprises a stainless steel


retaining element and a high-performance PTFE wave- shaped sealing lip that runs in a novel sinusoidal pattern on the shaft surface. As the shaft rotates, each point of the sealing lip repeatedly covers a new area of the shaft that is wetted with medium. The Gerromatic radial shaft seal is available via Dichtomatik Ltd, the exclusive provider for Freudenberg’s food and beverage related sealing products in the UK.


The seal is intended for use in axially accessible


installation spaces, whereby the metallic clamping ring enables an exceptionally tight fit. The Gerromatic rotary shaft seal withstands a high-pressure load of up to 8 bar, and temperatures of between 80°C and +200°C. In other applications, a sliding speed of up to 25 m/s can be achieved.


Each of the various PTFE types, such as PTFE Y002, not


only have the relevant food approvals according to EU regulation 10/2011 and the FDA (Food and Drug Administration), but PTFE Y002 also complies with the pharmaceutical regulations of USP Class VI. In addition, the materials are particularly resistant to CIP/SIP (cleaning in place/sterilisation in place) cleaning media that are commonly used in the process industry. These outstanding properties make the Gerromatic particularly well suited to wet-running applications in food and beverage plants.


Delivering minimal wear and maximum service life,


the Gerromatic radial shaft seal also offers a unique self-cleaning effect. Thanks to the innovative contact zone of the wavy sealing lip with the shaft, abrasive particles are washed away immediately. This mechanism prevents particles from remaining in-situ under the


40 JUNE 2020 | DESIGN SOLUTIONS


sealing lip, where they can cause wear and leakage. Additionally, the alternating flat and linear contact zone provides pressure distribution, which is highly advantageous. Compared with conventional rotary shaft seals, the sealing lip of the Gerromatic offers maximum stiffness and thus maintains its full functionality even at high operating pressures.


In contrast, the symmetrical sealing lip of a proven


standard seal offers straight-line contact that can lead to the displacement of medium in the contact zone. This dry running increases friction and, subsequently, temperature. As a result, a special sealing lip shape has been developed for the Gerromatic that has sinusoidal contact with the shaft. This design efficiently reduces the effect of friction, which is beneficial with temperature-sensitive media. In standard 96-hour tests at 0.5 MPa pressure and 5 m/s circumferential speed, the Gerromatic shows a 20°C lower temperature rise of the seal in comparison with proven rotary shaft seals. The Gerromatic also sets a new standard for high-pressure applications with regard to leakage behaviour (the leakage rate is negligible under the same test conditions).


The extensive sealing portfolio from Freudenberg


Sealing Technologies includes a range of food-compatible and hygiene-safe radial shaft seals. These seals are made of high-performance materials and each has a design tailored to specific applications, including the Gerromatic for food and beverage plants. Experts at Freudenberg Sealing Technologies continuously monitor current market needs and proactively develop new product designs and sealing materials that deliver optimised performance in line with application requirements. The Gerromatic radial shaft seal is the latest in a long line of innovations that have emerged from the development lab at Freudenberg.


Further information is available at: https://foodandbeverage.fst.com/products- en/innovations#Gerromatic


Freudenberg Sealing Technologies  01332 524422  fst-food-beverage@dichtomatik.co.uk  www.foodandbeverage.fst.com/ products-en/innovations#Gerromatic


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