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[object Object],[object Object],[object Object],[object Object],[object Object],Wear Rings Something you wear?  Or something that  prevents Wear? MENU
[object Object],[object Object],[object Object],Water Movement Inside the Case Low-Pressure Zone High-Pressure Zone MENU
[object Object],[object Object],Improving Efficiency Low-Pressure Zone High-Pressure Zone MENU
[object Object],Improving Efficiency – Semi-Open Impellers MENU
[object Object],[object Object],Improving Efficiency – Closed Impellers MENU
[object Object],[object Object],[object Object],Damage to the Case MENU
[object Object],[object Object],[object Object],Casing Wear Rings MENU
Wear Ring Materials Many wear-ring materials Commonly made from stainless steel and bronze MENU
[object Object],[object Object],[object Object],Replaceable/Non-Replaceable No thanks Used wear rings, make me an offer MENU
Apply Your Knowledge What is one cause of decreased pump efficiency? Water that gets re-pumped C B Narrow gaps between impeller and volute A Wear rings
Apply Your Knowledge What is one cause of decreased pump efficiency? Sorry, that’s incorrect LET’S REVIEW Water that gets re-pumped C B Narrow gaps between impeller and volute A Wear rings
Apply Your Knowledge What is one cause of decreased pump efficiency? Sorry, that’s incorrect LET’S REVIEW Water that gets re-pumped C B Narrow gaps between impeller and volute A Wear rings
Apply Your Knowledge What is one cause of decreased pump efficiency? That is correct ! ,[object Object],[object Object],Water that gets re-pumped C B Narrow gaps between impeller and volute A Wear rings
 

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013 Wear Rings

  • 1.
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8. Wear Ring Materials Many wear-ring materials Commonly made from stainless steel and bronze MENU
  • 9.
  • 10. Apply Your Knowledge What is one cause of decreased pump efficiency? Water that gets re-pumped C B Narrow gaps between impeller and volute A Wear rings
  • 11. Apply Your Knowledge What is one cause of decreased pump efficiency? Sorry, that’s incorrect LET’S REVIEW Water that gets re-pumped C B Narrow gaps between impeller and volute A Wear rings
  • 12. Apply Your Knowledge What is one cause of decreased pump efficiency? Sorry, that’s incorrect LET’S REVIEW Water that gets re-pumped C B Narrow gaps between impeller and volute A Wear rings
  • 13.
  • 14.  

Editor's Notes

  1. Wear rings are designed to wear out so the pump won’t have to. Because of the way water moves through the pump case, and because of the tight tolerances between components (required for efficiency,) The pump case is vulnerable to wear. Wear rings help prevent this. Here, we’ll look at how water moves through the pump case, how efficiency is achieved, how damage can occur, and How wear rings help pump designers deal with these issues.