Type of toilet flange to use

[PH]

I am installing new slate in a bathroom and understand that I need to raise the flange up ontop of the new slate floor. My question is what is the best type of ABS flange to use (all ABS, ABS with a stainless or brass moveable ring)? It sounds like the metal rings eventual will rust out, I have heard the all ABS ones can crack.

Any advice would be great.

Thanks

Paul

[Plumber2000]

Schedule 40 closet flange. Anything less is no good.

[hj]

Anything but an all plastic one. It will eventually distort and/or break from the constant tension of the closet bolts.

[Plumber2000]

Well since I say a schd 40 plastic flange is best and hj says anything but a plastic flange, and the metal ones will rust out, guess the one you can trust is a cast flange.

You decide.

[PH]

Thanks for your suggestions. I am not familiar with Schedule 40, is that the style or type of plastic? So, I guess using a brass ring is probably the way to go?

[jumpyg]

Thanks for your suggestions. I am not familiar with Schedule 40, is that the style or type of plastic? So, I guess using a brass ring is probably the way to go? I'm not an expert, but sched 40 is a grade of PVC. Typically sched 40 is white. You can also get sched 80, which is thicker (for high pressure applications) and is typically gray.

Pipes and fittings will usually have the grade, such as sched 40, written right on the piece. It should be very easy to find at any hardware or home improvement center. Just ask if you're not sure.

[Plumber2000]

Schd 40 is the same thickness is ABS dwv is, as all the drain pipes.

I have never had a problem with schd 40 plastic closet flanges, there thick enough to hold up to many years of tension, IMO these ones are not likely to break like some of the other brands of plastic flanges, there are cheap ones out there, the best one of them all is schd 40.

I'll tell you to install a schd 40 plastic flange, simplify to installation, you won't have a problem.

[PH]

Thanks Plumber 2000. I have heard the same advice from others as well. I do need an ABS flange and will go with the all plastic high grade one and call it good.

Paul

[jdkimes]

Just FYI regarding schedule 40-
What it means if a pipe is "Schedule 40" it meets the minimum ASTM scheudle 40 for standards for materials, workmanship, dimensions, sustained pressure, burst pressure, flattening, and extrusion quality.