45 PVC elbow vent only?

Discussion in 'Illinois Plumbing Code Questions' started by Kevin71246, Mar 21, 2018.

  1. Kevin71246

    Kevin71246 Member

    Joined:
    Mar 13, 2018
    Location:
    Chicago burbs
    I see tons of questions about a 90 being vent only (short sweep), but can't find anything about a 45.

    Is there a 45 elbow that's for a vent only, and not drain? In the attached screenshot, I'm wondering if the bottom 2 are for vent only? If not, what's the difference between the top 2 and the bottom 2? It seems the bottom 2 has more glueing surface which I prefer but not sure if I can use it. I'm in Chicago burbs btw.

    Thanks all!
     

    Attached Files:

  2. Reach4

    Reach4 Well-Known Member

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    Sep 25, 2013
    Location:
    IL
    Last edited: Mar 21, 2018
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  4. Kevin71246

    Kevin71246 Member

    Joined:
    Mar 13, 2018
    Location:
    Chicago burbs
    Appreciate the response!
     
  5. hj

    hj Master Plumber

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    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    DWV also means they have "radius" turns. Sch 40 fittings have "sharp" angle turns.
     
  6. Kevin71246

    Kevin71246 Member

    Joined:
    Mar 13, 2018
    Location:
    Chicago burbs
    HJ, does your comment mean the bottom 2 "sch 40" fittings, being "sharp" turns, should not be used for drain? If so, what can they be used for? Only supply & vent? Thanks!
     
  7. cacher_chick

    cacher_chick Test, Don't Guess!

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    The bottom fittings are intended for use in supply lines, as in cold water supply from the curb stop or to an outbuilding. They would not nornally be used inside a structure.
     
  8. hj

    hj Master Plumber

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    They could only be used for vents, but normally only in "emergency" situations where a DWV fitting would not fit
     
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