3 inch x 3 inch x 1-1/2 inch Cast Iron Soil Reducing Tapped Wye No Hub x No Hub x No Hub

3" x 1-1/2" Cast Iron Reducing Tapped Wye – Engineered for Directional Transitions in Soil Systems

The 3" x 1-1/2" Cast Iron Reducing Tapped Wye is designed for use in drain, waste, and vent (DWV) systems, providing a branch connection at a 45-degree angle while reducing to a smaller diameter. Manufactured to meet the performance and dimensional requirements of ASTM A888 and CISPI 301, this fitting ensures compatibility with standard cast iron no-hub systems and delivers lasting performance in demanding soil applications.

Key Features

• Material: Durable cast iron construction provides long-term resistance to corrosion, deformation, and high load-bearing stress.
• Configuration: 3" main run x 1-1/2" reducing branch with factory-tapped side outlet, typically used for vent or auxiliary line access.
• Connection Type: No-Hub; designed for use with shielded couplings conforming to ASTM C1277 or CISPI 310.
• Bend Angle: 45-degree branch orientation promotes smooth directional flow and venting efficiency.
• Compliance: Certified for use in DWV systems and approved for residential, commercial, and institutional installations.

Advantages for Professional Installations

• Flow Optimization: The wye geometry supports effective flow management, reducing turbulence and potential clogging at directional junctions.
• Structural Integrity: Service weight cast iron maintains dimensional stability and handles elevated temperatures and pressure fluctuations.
• Code-Approved Performance: Manufactured to national plumbing code specifications, supporting regulatory compliance and inspection readiness.
• Acoustic Benefit: The dense material significantly reduces noise transmission through DWV lines, improving acoustic control in occupied spaces.

Typical Applications

This reducing tapped wye is commonly used to connect a vent or secondary drainage line to a 3" horizontal main soil stack. The 1-1/2" tapped side is ideal for connecting to fixture units such as lavatories or condensate drains. It is suitable for use in both new construction and retrofit work in multi-level residential and commercial plumbing systems.

Installation Notes

Install using torque-rated mechanical couplings designed for cast iron systems. Proper alignment, bracing, and torque control are essential to ensure watertight connections and maintain system integrity. The fitting may be oriented horizontally or vertically as required by system layout and code constraints.

Did You Know?

Cast iron DWV systems offer unmatched fire resistance and acoustic suppression compared to plastic alternatives, making them a preferred option in multifamily and commercial construction projects seeking performance and longevity.

The 3" x 1-1/2" Cast Iron Reducing Tapped Wye delivers dependable transitions and branch integration in complex DWV layouts. Choose this component for its structural resilience, precision fit, and code-ready design—trusted by plumbing professionals for enduring system performance.