Impeller Question..
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Impeller Question..

  1. #1
    Member
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    Default Impeller Question..

    This may be a dumb question but has anyone ever tried putting a stainless sleeve on the impeller itself (where the wear ring rides)?
    Seems odd that they make stainless wear rings for the housing and yet the aluminum impeller gets no additional protection.



    The reason I ask is my Berkeley 'A' impeller is in very good shape otherwise but the surface that runs in the wear ring is trashed- Past the point of machining and getting and undersized wear ring (impeller surface diameter is about 7.1" on the high spots).
    If I could press on a stainless ring (IE like a 'Speedi Sleeve'), I might be able to salvage the impeller and avoid more damage in the future.

    Thoughts, suggestions?
    Thanks!
    Elm
    Maybe this is my million dollar idea?

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  3. #2
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    A stainless sleeve would likely gall against the SS wear ring.

    Perhaps a bronze or synthetic material would be a better choice.

  4. #3
    Member ocelot's Avatar
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    stainless would gall, spinning wear ring and trash your suction. weld it.

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  6. #4
    Member ocelot's Avatar
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    also the wear ring skirt on impellers expands under load, might wanna check your thrust bearing too.

  7. #5
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    I dont think you could do it with a alum. imp. but I have done it with a ss imp. before with no problems. had it machined to an interfearance fit and froze the imp and heated the ring and pressed them together. was a solid deal when done and I ran it for 3 years befor i sold it.
    and just out of curiosity ocelot and gt77 why would it gall ? no different than running a ss imp. on a ss wear ring.

  8. #6
    Senior Member DuaneHTP's Avatar
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    Running SS on SS has a lot higher tendency to gall than running SS on bronze like most do. Dissimilar metals always work better together. Yes, it can be down, not a good idea though. Duane HTP

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