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  1. #1
    Join Date
    Jan 2009
    Posts
    237
    Ahh

    Air stream entrained coolant drops. Makes sense Thanks

  2. #2
    Join Date
    Jul 2005
    Posts
    12177
    I have a cautionary note:

    You are using a clear plastic domestic water filter housing.

    My shop has used these for coolant filters for years without problems and I have suggested their use many times here on cnczone. Recently, however, someone did install one and the plastic housing fractured making a bit of a mess with coolant all over the place.

    With your setup the housing is under air pressure, not liquid pressure, and when it is almost empty of coolant it is almost full of air at 15 psi; if this housing fractured it could fling plastic shards around.

    A metal shroud around it may be a good idea.
    An open mind is a virtue...so long as all the common sense has not leaked out.

  3. #3
    Join Date
    Jan 2009
    Posts
    237
    My house water pressure ranges from 40-70 psi!

    What a watery mess if one of the two filters would just Crack!

  4. #4
    Join Date
    Jul 2005
    Posts
    12177
    Quote Originally Posted by CalG View Post
    My house water pressure ranges from 40-70 psi!

    What a watery mess if one of the two filters would just Crack!
    Yes but then you could sue them.

    My thought was that they cracked in use on a machine because they were subjected to pressure cycles every time the coolant pump turned on, leading to a fatigue effect; in a house application the pressure stays constant nearly all the time.

    It was on a Haas machine with the high flow pump that generates around 20-25psi.
    An open mind is a virtue...so long as all the common sense has not leaked out.

  5. #5
    Join Date
    Jul 2008
    Posts
    922
    Quote Originally Posted by Geof View Post
    I have a cautionary note:

    You are using a clear plastic domestic water filter housing.

    My shop has used these for coolant filters for years without problems and I have suggested their use many times here on cnczone. Recently, however, someone did install one and the plastic housing fractured making a bit of a mess with coolant all over the place.

    With your setup the housing is under air pressure, not liquid pressure, and when it is almost empty of coolant it is almost full of air at 15 psi; if this housing fractured it could fling plastic shards around.

    A metal shroud around it may be a good idea.
    I think a cheaper solution would be to get one of those big ball buckets they use for baseball (if you buy a tub of sunflower seeds those buckets)
    http://ak.buy.com/db_assets/large_im.../206226886.jpg
    and just place it in there.

  6. #6
    Join Date
    Jul 2005
    Posts
    12177
    Just make sure the top half of the filter unit cannot fly out like an air propelled mortar.
    An open mind is a virtue...so long as all the common sense has not leaked out.

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