Abi Foundry 1546 Double Wye Fitting 4x3 No Hub Cast Iron

Product Description

The ABI FOUNDRY 1546 is a no-hub cast iron double wye fitting designed for drain, waste, and vent (DWV) piping systems. It provides two 45-degree branch outlets off a common run, allowing a single main line to receive flow from two separate branch lines simultaneously. The fitting uses a no-hub end style, meaning it connects to adjoining pipe using no-hub couplings and clamps rather than threaded or hub-and-spigot joints. The nominal size is 4 x 3 inches with an overall length of 8 inches. Licensed plumbers install this fitting in below-grade, above-grade, and in-wall DWV assemblies in both residential and commercial construction.

This double wye fitting is suited for sanitary drain and vent piping applications where two branch lines must tie into a 4-inch main. It is commonly installed at stack intersections or horizontal branch takeoffs in multi-fixture plumbing configurations. The 4 x 3-inch nominal sizing accommodates transitions from a 4-inch main run down to 3-inch branch connections, a configuration frequently seen in residential bathroom groups and commercial restroom rough-in work.

Key Features

• Double wye configuration provides two branch inlets off a single main run
• No-hub end style connects with standard no-hub couplings and band clamps
• 4 x 3-inch nominal sizing supports common 4-inch main to 3-inch branch transitions
• Cast iron construction offers durability and sound-dampening performance in DWV systems
• 8-inch overall length fits standard rough-in clearance requirements

Compatibility

Designed as an OEM-style no-hub cast iron DWV fitting compatible with standard no-hub cast iron pipe and fittings systems per CISPI and ASTM standards.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Before beginning work, isolate the affected drain line and ensure the system is depressurized and drained. Secure no-hub couplings with a torque-limiting driver to the coupling manufacturer's specification. Support the fitting and adjoining pipe with appropriate hangers at spacing intervals required by the authority having jurisdiction.

Technical Specifications

• Fitting Type: Double Wye
• Nominal Size: 4 x 3 inches
• End Style: No Hub
• Material: Cast Iron
• Overall Length: 8 inches
• UNSPSC: 40175203

Standard Information

• Brand: ABI FOUNDRY
• Manufacturer Part Number: 1546