Nibco e091050 Cast Copper Dwv 45 Wye 4 Inches

Product Description

The NIBCO e091050 is a 4-inch cast copper sweat DWV 45-degree wye fitting used in drain, waste, and vent piping systems. It is manufactured from cast copper and joins to copper pipe using a sweat (solder) connection method. The 45-degree branch angle allows for smooth directional changes in horizontal and vertical drain runs, reducing turbulence and helping maintain proper flow velocity. Licensed plumbers and pipefitters install this fitting in both new construction and retrofit applications where DWV copper piping is specified.

This fitting is suited for residential and light commercial drain, waste, and vent systems where copper is the specified pipe material. It is commonly installed in floor drain connections, branch drain lines, and vent stack transitions. The 4-inch diameter makes it appropriate for main drain stacks, building drains, and high-flow branch connections typical in multi-fixture plumbing systems.

Key Features

• Cast copper construction for durability in drain, waste, and vent applications
• Sweat (solder) end connections for a reliable, leak-resistant joint
• 45-degree branch angle promotes smooth flow transition and reduces buildup risk
• 4-inch size suits main stack and primary branch drain applications
• DWV-rated — not intended for pressure service

Compatibility

Designed as an OEM-style sweat DWV fitting for use with standard 4-inch copper DWV pipe in residential and commercial drain, waste, and vent piping systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local codes. Shut off and drain the affected piping section before cutting in the fitting. Clean and flux all mating surfaces thoroughly before soldering, and allow joints to cool fully before restoring flow. This fitting is rated for DWV service only and must not be used in pressurized water supply lines.

Technical Specifications

• Material: Cast Copper
• Connection Type: Sweat (Solder)
• Size: 4 inches
• Branch Angle: 45 degrees
• Application: DWV (Drain, Waste, Vent)

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: e091050