Mueller Streamline DWVY112 Dwv 45 Degree Wye 1-1/2 in

Product Description

The MUELLER STREAMLINE DWVY112 is a cast copper DWV wye fitting configured at a 45-degree branch angle with three socket-style (C x C x C) sweat connections, all sized at 1-1/2 inches. Designed for drain, waste, and vent piping systems, this fitting connects copper DWV lines in residential and light commercial plumbing. The 45-degree angle allows branch connections that direct flow smoothly into the main run, reducing turbulence and helping maintain proper drainage velocity. Licensed plumbers install this fitting using standard soldering or brazing techniques during rough-in and repair work on copper drain systems.

This fitting is suited for drain, waste, and vent applications in residential and light commercial construction or remodel projects. It is typically installed in horizontal or angled drain runs where a branch outlet is needed at 45 degrees. All three connections are copper sweat ends at 1-1/2 inches, making it compatible with standard 1-1/2-inch copper DWV pipe used in lavatory, tub, and fixture drain lines.

Key Features

• 45-degree branch angle promotes smooth drainage flow and reduces turbulence at the junction
• Cast copper construction provides durability and compatibility with standard copper DWV pipe
• C x C x C socket ends accept standard copper pipe for soldered sweat connections on all three ports
• 1-1/2-inch sizing fits common lavatory, tub, and fixture drain lines
• DWV-rated design meets the pressure and flow demands of residential and light commercial drain systems

Compatibility

Designed as an OEM-style replacement and new-installation fitting for 1-1/2-inch copper DWV piping systems using sweat-connect (C x C x C) configurations.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and drain the system completely before cutting into existing lines. Clean and flux all socket ends before soldering, and allow joints to cool fully before restoring flow. Do not use this fitting on pressurized supply lines — it is rated for drain, waste, and vent service only.

Technical Specifications

• Connection Type: C x C x C (Sweat Socket)
• Branch Angle: 45 degrees
• Size: 1-1/2 inches
• Material: Cast Copper
• Application: DWV (Drain, Waste, Vent)

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: DWVY112