45 PVC elbow vent only?

[Kevin71246]

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!

 

[Reach4]

The top two say DWV, which means they should only be use for drains, waste, and vent -- non-pressurized.

The bottom ones can be use for those same things plus pressurized applications.

I was wondering what the distinction between W and D were. https://www2.iccsafe.org/states/Virginia/Plumbing/PDFs/Chapter 2_Definitions.pdf says waste does not contain fecal matter.

 

[Sponsor]

 

[Kevin71246]

Appreciate the response!

 

[hj]

DWV also means they have "radius" turns. Sch 40 fittings have "sharp" angle turns.

 

[Kevin71246]

DWV also means they have "radius" turns. Sch 40 fittings have "sharp" angle turns.

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!

 

[Cacher_Chick]

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!

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.

 

[hj]

They could only be used for vents, but normally only in "emergency" situations where a DWV fitting would not fit