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Solutions for higher efficiency

12 April 2011

The Parker Seal Group showcased its products and solutions under the central theme of “Smart Sealing Technology – Intelligent sealing solutions for higher efficiency.”

The Parker Seal Group presented its new “Adhesives and Sealants” product range of modern, economical and “clean” solutions for a multitude of tasks in the field of maintenance, repair and operations (MRO). 

Fluid power
At the show Parker outlined how friction optimisation 'continues to be one of the central keys to higher efficiency in the field of fluid power applications'. The company add that Parker-Prädifa shows how the efficiency of hydraulic systems can be significantly enhanced by means of new, friction-optimised sealing materials and geometries. Efficiency is also a result of factors like long service life and high operating reliability. They can be achieved, for instance, by reducing dirt ingress by means of the newly developed AV wiper. The wiper back with a large, externally protruding dirt shield protects against ingress of rain water. The integrated pressure relief function prevents the extrusion of the wiper from the groove in the event that pressure builds up between the seal and the wiper. As simplified assembly leads to time and cost savings it is another way to increase efficiency. The showcased comprehensive range of composite sealing plates and washers, for example, facilitates quick and reliable sealing of flange connections. In addition, the versatile composite parts can be used to achieve reliable sealing concepts in diverse applications ranging from automotive engineering, air conditioning technology and general industrials through to the oil and gas sector. 

Process engineering 
Parker say that their newly developed hygienic sanitary gaskets feature a patent-pending design and are suited to meet the exacting qualitative and technical demands of applications in hygienically critical process equipment and tube systems such as in the processing and pharmaceutical industries. The nearly flush interface (± 0.2 mm) prevents entrapment of any media within a dead space that can lead to microbial growth and contamination. In addition, they add that the flush design helps to prevent erosion of the elastomeric seal that could contaminate the process stream. The sealing elements have been awarded international ASME Bio Processing Equipment (BPE) certification. 

Renewable energies
Safe and efficient use of renewable energies makes special demands on sealing technology, particularly with respect to media resistance. An extensive range of sealing technology solutions designed to meet these needs was presented at the Parker HMI trade fair stand. Among other things, it encompasses special sealing materials and compounds which are suitable for use in wind farm applications involving high-frequency micro-oscillations. Parker add that their newly developed special materials for solar-thermal systems are resistant to water- and oil-based heat transfer media plus aggressive additives and temperatures of up to +320°C. For photovoltaic systems, Parker presents UL-listed sealing materials that simplify the approval processes for system components. In addition to colour coding, they offer good low-temperature flexibility, ozone and weather resistance. 

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