Bearing and Shaft Seal Water Conditioning Systems


WQP-SS-High-Resolution

Thordon has developed a self-contained supply, conditioning and monitoring package to ensure that an adequate supply of clean water is consistently being delivered to both the seal and the bearings.

The Thordon Water Quality Package is designed to supply water to the main guide bearing for lubrication and cooling at a minimum flow rate of 0.3 litres/minute/mm (2 US gallons/minute/inch) of shaft diameter and to condition water from the water supply by removing suspended solids larger than 100 microns (0.004” ) and with a specific gravity of 1.2 or higher; separation to 80 microns (0.003”) is achievable using the 75-150 l/min (20-40 GPM) unit. A flow alarm is incorporated to alert the operator to any low water flow condition to the bearing. The Thordon Water Quality Package is designed to operate on a stand-alone basis, or can be fully integrated into the control and monitoring systems to allow operation in an unmanned machinery space.

Thordon offers three Water Quality Packages in configurations designed to deliver flow to suit a wide range of shaft sizes, and provide an appropriate degree of installation redundancy. Thordon can, if required, work with integrators, designers and builders to meet special needs for specific installations.



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    Thordon NewsWorks 2014

    Thordon’s web-based newsletter specifically developed for hydro, industrial and pump users of oil-free and grease-free bearings. This newsletter includes feature articles about rehabilitated turbine guide bearings, vertical pump bearings installed on an offshore vessel and various industrial bearing applications.
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  • News-Thumbnails-320x160_Raanaasfoss1

    The Move to Water Pays for Norway's Raanaasfoss Hydro Plant Operator

    Jun 17, 2019
    The water-lubricated SXL turbine guide bearings Thordon installed as part of the re-powering of Norway’s Raanaasfoss 1 hydro plant have experienced almost zero wear after 23,887 hours of continuous operation on the first installed unit. During routine inspections of the 13.5 MW turbines, commissioned by Voith Hydro in 2013, the guide bearings – the operator’s first experience with water-lubricated bearings – showed “almost no wear at all”, with a measured diametric bearing clearance less than 0.30mm (0.012”) on the longest running Unit 1. All remaining turbines (Units 2 to 6) had very low measured diametric clearances of between 0.30 and 0.50mm (0.012” and 0.020”).
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  • News-Thumbnails-320x160_Poland

    Thordon Bearings' Sister Company T-G DNALOP Purchases Polish Hydropower Plant to Develop New Turbine Technology

    Mar 25, 2019
    Thordon Bearings' sister company T-G DNALOP has purchased the small Struzyska hydroplant in Pila, Poland, 180km south of its bearing and seal production facility, in Slupsk. The Struzyska plant operates three small turbines capable of generating 67kW of electrical power. Once two of the turbines have been refurbished and are back onsite, the Canada-headquartered company will operate the plant commercially, supplying electricity back to the grid.
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