​Grover Specializes In Hydro-Electric Dam & Smelting Applications, Producing Rings Up To 102" In Diameter

Very large diameter steel rings and seals is another area where Grover Corporations capabilities exceed industry standards. Very few manufacturers have Grover’s large-ring production capabilities.

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  • Grover specializes in Hydro-electric dams and smelting plant applications
  • Grover can produce rings up to 102 inches in diameter and virtually limitless configurations
  • Decades of experience in manufacturing large diameter rings enhanced by our 2006 acquisition of the Double Seal Piston Ring Company


  • Over 90 years experience in making high quality metallic rings
  • Sealing joints that are the industry standard
  • Flexible manufacturing process to accommodate size needs
  • ISO 9001 2015 certified ensures your rings will meet and exceed all quality standards
  • Grover’s customers application range from small custom single piece to large repeatable jobs shipped throughout the world

We make a living by what we get, but we make a life by what we give.

- Winston Churchill

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Got a question for us, or wondering if we can meet your specific application needs?

Industries We Serve

Because every customer has different application needs, Grover provides the value-added service of customized programs uniquely suited to specific piston ring needs.

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    ​Power Generation
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    ​Hydro Electric
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    Ore Smelting ​