Problem High costs and frequent unscheduled downtime due to the unreliability in service of the compression packing, which was resulting in heavy leakage and the need for regular adjustment. Application Existing solution Compression packing Voith Twin-Flow Refiner at a tissue production plant in the UK. l Shaft diameter: 90 mm l (31/2”) shaft sleeve l 105 mm (4”) l Shaft speed: l 4.7 m/s (925 ft/min) l Media: abrasive paper l stock 3% to 5% l concentration After 15 months in service the second sealing lip was deployed. The first lip alone massively outperformed the existing compression packing, with no visible leakage reported. With one further sealing element in the cartridge ready to be deployed when required, the lengthy service life of th

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