How to connect 1 1/2" PP Sink Drain to 2" ABS Waste Pipe?

[sevendouble0]

I'm adding cabinetry and a sink to a utility room that was originally a laundry area in our house. Sink is a small SS sink with 1 1/2" PP drain pipe and P-Trap, the waste pipe coming out of the wall is 2" ABS. Is there such thing as a 1.5" x 2" SJ Trap Adapter? If so, I can't find one. Or do I need a 1.5x1.5 SJ ABS Hub trap adapter and a 1.5x2 ABS reducer? The 2" ABS connects to an enclosed sump pump (Liberty model 404L) on the other side of a concrete wall so I can't modify anything "in the wall" and space is limited on the other side as the pump is against the wall in a tight spot. Sump Pump has a standpipe and a vent coming out the top. The sink is small and will be used for hand washing only, nothing else will share that drain (laundry has been relocated) I'm in Southern California.

 

[Reach4]

I think you are looking for a trap adapter that glues onto a 2 inch pipe, and lets you hook up to a 1.5 inch slip joint trap. A "hub" goes onto a pipe.

Charlotte Pipe 2 in. ABS DWV Hub x Slip Joint Trap Adapter ABS00104W1000HD - The Home Depot

ABS fittings are for drain, waste and vent purposes only. They are used in gravity fed waste elimination systems and are for Non-Pressure where temperatures will not exceed 140°. ABS materials are light

www.homedepot.com

If instead you wanted to glue in to a socket, you would want a "2 inch spigot" type trap adapter.

https://www.supplyhouse.com/Nibco-I018200-2-H-x-SJ-ABS-Trap-Adapter-58017

 

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[sevendouble0]

I agree, a trap adapter that glues onto the 2 inch ABS pipe and allows me to hook up the 1.5 inch slip joint, trouble is I can’t find one, do they exist? The link you provided for HD is a 2” to 2”, and they have 1.5” to 1.5” but they don’t carry anything that goes 2” to 1.5”. I have to imagine many other people have run into this same scenario before?

I should specify the PP sink trap is the thin white pipe like this:

Oatey 1-1/2 in. White Plastic Sink Drain P- Trap HDC9704B - The Home Depot

Give a classic and long lasting appearance to your shower by adding this Everbilt White Plastic Sink Drain PTrap with Reversible JBend.

www.homedepot.com

and the ABS drain pipe is 2" inside diameter.

Would I need 2 fittings in this case? a 1.5x1.5 adapter and a 2x1.5 reducer? If so, am I correct that I'd glue this as close to the wall as possible:

Charlotte Pipe 2 in. x 1-1/2 in. ABS DWV Hub x Hub Reducer/Increaser ABS001020600HD - The Home Depot

ABS fittings are for drain, waste and vent purposes only. They are used in gravity fed waste elimination systems and are for Non-Pressure where temperatures will not exceed 140°. ABS materials are light

www.homedepot.com

then glue a few inches of 1.5" ABS to that, then glue the reducer to the short segment of pipe:

NIBCO 1-1/2 in. ABS DWV Spigot x Slip-Joint Trap Adapter C580127HD112 - The Home Depot

Get the NIBCO 1-1/2 in. ABS Trap Spg x SJ Street Adapter C5801-2-7, for non-pressurized system adapt a fitting hub to a tubular trap at the floor or wall at The Home Depot

www.homedepot.com

then slip the trap arm into the adapter?