Blandin Paper in Grand Rapids, Michigan, was looking for a long term solution in sealing their Grubben stock pumps. The Grubben stock pumps are specifically designed for transporting liquids with variable consistencies with concentrations of 8% to 12%. The Grubben stock pumps are factory installed with a lip seal. Which has a limited life span of approximately 6 to 8 month, and can also damage the shaft. When the lip seal wears out the pump begins to leak lubrication and allow external contamination to enter the bearing housing.

Rapids Process Equipment, an Isomag distributor in Minnesota, introduce Blandin Paper to Isomag bearing isolators, and showed the maintenance team that Isomag is a positive seal, like a lip seal, but unlike a lip seal, Isomag bearing isolators last more than 10 years and do not damage the shaft of the host equipment. Since the installation of the Isomag seals, the pump has been up and running leak and contamination free.

A brochure for Isomag bearing isolators for pumps can be found here. Also as a reminder, Isomag bearing isolators can be custom made to fit your machine. Contact our customer service team and we will help you find the ideal solution for your needs.

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