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A pump shaft sealing system that is designed to eliminate constant maintenance and adjustment, and cut water wastage and dramatically reduce power consumption, has been launched by James Walker & Co Ltd. It is targeted at applications involving abrasive and chemically aggressive media such as those found in pulp and paper mills.
Called the KlickFix cartridge sealing system, it contains multiple inbuilt lips that can be deployed sequentially in order to provide extended sealing life and predictable operational performance. Easy to fit, the cartridge can be quickly refurbished on-site and has the potential to significantly outperform traditional mechanical seals and compression packings.
The cartridge uses a unique system -covered by an international PCT patent -for deploying individual polytetrafluoroethylene sealing lips (typically eight in total) in sequence. As the lip in use gradually wears, any leakage is stemmed in a matter of seconds by deploying the next stored lip. Deployment involves a simple 'clickto-fix' operation that requires no specialist technical knowledge or equipment.
When, eventually, all the lips are exhausted (a period many times longer than the typical service intervals required by mechanical seals or compression packings), the unit can be refurbished on-site by inserting a new sealing element containing the built-in sealing lips.
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