Abi Foundry 1228 Sanitary Tee 4x2 in No Hub Fnpt Cast Iron

Product Description

The ABI FOUNDRY 1228 is a cast iron sanitary tee fitting designed for drain, waste, and vent (DWV) piping systems. This tapped tee provides a 4-inch main run with a 2-inch female NPT branch outlet, allowing a threaded pipe connection off a no-hub main line. At 6.375 inches in length, the fitting is suited for residential and light commercial drainage installations where cast iron durability and sound attenuation are specified. Licensed plumbers and pipefitters are the typical installers. The no-hub end style accepts standard no-hub couplings on the run ends, while the FNPT branch receives a standard threaded male fitting.

This sanitary tee is used in gravity-flow DWV systems where a branch line must tee off a 4-inch main stack or horizontal run. The 2-inch FNPT branch is commonly used to connect lavatories, washing machine standpipes, or other fixtures producing moderate flow. The no-hub configuration is standard in both new construction and retrofit work where hubless cast iron pipe is the specified material. This fitting is appropriate for above-grade and below-grade installations in compliance with applicable plumbing codes.

Key Features

• Cast iron construction provides long service life and superior sound dampening compared to plastic DWV fittings
• 4-inch no-hub run ends accept standard no-hub couplings for fast, torque-bolt installation
• 2-inch FNPT branch outlet allows direct connection of threaded male fittings or adapters
• Sanitary tee geometry promotes proper laminar flow in gravity drainage applications
• 6.375-inch body length fits standard rough-in spacing in wall and floor assemblies

Compatibility

Designed as an OEM-style cast iron DWV fitting compatible with 4-inch no-hub cast iron pipe systems using standard no-hub couplings on the run ends and 2-inch NPT threaded connections on the branch.

Installation Notes

Installation is performed by a licensed plumber in accordance with the International Plumbing Code (IPC) or applicable local code. No-hub ends are secured with no-hub shielded couplings torqued per the coupling manufacturer's specification. Shut off and drain all affected lines before cutting into an existing stack or horizontal run. Confirm that branch flow direction aligns with the sanitary sweep to maintain proper drainage slope and avoid backflow.

Technical Specifications

• Fitting Type: Sanitary Tee
• Nominal Size: 4 x 2 inches
• End Style: No Hub x FNPT
• Material: Cast Iron
• Length: 6.375 inches
• UNSPSC: 40174603

Standard Information

• Brand: ABI FOUNDRY
• Manufacturer Part Number: 1228