Cast Closure Rings / Back-up Rings

Cast Closure Rings

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Also known as Back-up Rings, Cast Closure Rings give a temporary fix to a stuffing box in need, minimizing downtime for your pump.

  • Inhibit packing extrusion.
  • Allow your pump to operate while the stuffing box is worn or wallowed.
  • Quick and easy installation.
  • Available in both split and pinned designs.

Used to relocate Rains-Flo packing rings along a worn shaft/sleeve to a less worn area. The Rains-Flo Cast Closure Ring will extend the life of a packing set.

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