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  1. #1
    Join Date
    Jun 2009
    Location
    Beautiful Cleveland, Ohio
    Posts
    32

    End bell divider rotted!!!

    I gotta York YCWS chiller that we took apart to punch the condensing tubes.
    The end bell with the divider has the dividing plate 1/4" eaten away across the entire edge of the divider. What's that all about? I told my boss that I think he may be over doing the chemicals a bit & he got a little ticked off & said it had nothing to do with it. What else WOULD eat it away?
    I'm a bit confused....
    He had one of the guys put a bead of silicone across it with some thin pieces of flat stock & said it should be O.K.
    I dunno what to make of it!

  2. #2
    Join Date
    Aug 2009
    Location
    Prattville, Alabama
    Posts
    2,065
    Could be erosion, from the water flow. The possibility of this is even more likely if the chiller has marine water boxes. You may want to verify the water flow rate is not excessive. However, it is possible with proper flow. It's better to replace damaged plates. They can be fabricated in the field. Also, the channels the plate slides into are often damaged, and need replacing. They are field fabricated, too.

  3. #3
    Join Date
    Jan 2011
    Posts
    1,167
    I don't know how to say this gently...your boss is a hack. Silicone and flat stock won't repair a damaged pass divider.

    Pass dividers can get eaten away be a couple of means. Under deposit corrosion can cause it. Erosion (as previously mentioned) can cause it. I have seen far more corrosion problems than erosion problems.

    Corrosion is generally caused from not applying the proper chemicals in the proper amounts. Water chemistry is a specialized field and requires accurate testing and monitoring. Sounds like that isn't being done on the chiller in question.

  4. #4
    Join Date
    Apr 2010
    Location
    Ontario
    Posts
    474
    Why would the divider plate on a marine water box corrode faster?
    ENJOY THE RIDE

  5. #5
    Join Date
    Dec 2011
    Posts
    107
    that flat stock is now beating your tube sheet to death.

  6. #6
    Join Date
    Sep 2007
    Location
    Somewhere in the world.
    Posts
    1,606
    I do believe all those division plates on a York are welded in place there is more work involved to repair , improper water treatment doesn't help , a anode can slow this process from happening and should be inspected and or replaced per season.
    Arguing with your Boss is like wrestling with a pig in
    mud.
    After a while you realize that while you are getting
    dirty, the pig is actually enjoying it.

    It is not exactly cheating, I prefer to consider it
    creative problem solving.

    25 years ago we had Bob Hope , Steve Jobs , and Johnny Cash today we have no Hope no Jobs and no Cash !
    I can fix broke but i can't fix stupid !

  7. #7
    Join Date
    Aug 2006
    Location
    Columbus Ohio
    Posts
    2,007
    Your boss has no business touching chillers. He sounds like a complete idiot.
    UA LU189

    10mm, because it's better than .45acp

  8. #8
    Join Date
    May 2011
    Location
    North FL.
    Posts
    206
    Repair/replace then have it epoxy coated by professionals.


    Sent from my iPhone using Tapatalk

  9. #9
    Join Date
    Aug 2009
    Location
    Prattville, Alabama
    Posts
    2,065
    Quote Originally Posted by Peztoy View Post
    Why would the divider plate on a marine water box corrode faster?
    Erode, not corrode. With a marine water box, water enters the head at a steep angle relative to the divider plate (from the side), where without a marine water box the water enters parallel to (in line with) the plate. You can probably visualize in one case the water "blasts" against the plate, and in the other water flows "along" the plate. I've seen a handful of plate failures in marine water boxes, and don't recall any in standard water boxes.

  10. #10
    Join Date
    Aug 2009
    Location
    Prattville, Alabama
    Posts
    2,065
    Quote Originally Posted by steveoo View Post
    that flat stock is now beating your tube sheet to death.
    And if "thin" also means narrow.... pieces of it may be inside a tube(s), beating it (them) to death! Leading to death of the chiller!

  11. #11
    Join Date
    Aug 2000
    Location
    Austell, Ga.
    Posts
    1,296
    Quote Originally Posted by zw17 View Post
    Your boss has no business touching chillers. He sounds like a complete idiot.
    Bold words for one that packs a lil' 10mm....How about his boss is "Absolutely a Complete Idiot" and should stick to the office part of his job..
    Ain't "None" of us as smart as "All" of us..

  12. #12
    Join Date
    Mar 2008
    Location
    philadelphia
    Posts
    353
    on the positive side as long as there are people like that we will always have a job....Just had one on a mquay corrode though most of the plate at the weld, cut it out replace it with new metal and have it coated as already mentioned

  13. #13
    Join Date
    Jun 2009
    Location
    Beautiful Cleveland, Ohio
    Posts
    32
    I feel better now. thanks

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