1-1/4 inch x 3/4 inch Black Iron Reducing Tee Female x Female x Female

1-1/4" x 3/4" Black Iron Reducing Tee – Built for Durable Pipe Transitions

The 1-1/4" x 3/4" Black Iron Reducing Tee is engineered for applications requiring a dependable transition between dissimilar pipe sizes. Manufactured from robust black malleable iron, this tee is designed to maintain system integrity in gas, air, and low-pressure liquid service lines. Its female threaded ends conform to NPT (National Pipe Thread) standards for secure and leak-resistant connections.

Suitable for both new installations and retrofits, this reducing tee provides a compact solution for integrating 3/4-inch branches into a 1-1/4-inch main run. Whether used in commercial mechanical systems or residential piping networks, it offers long-term reliability in demanding environments.

Performance Advantages

• ✅ ASTM A197 Construction: Cast from black malleable iron for structural strength and resistance to mechanical stress.
• ✅ Corrosion Resistance: Black iron oxide coating offers protection during storage and initial service life.
• ✅ Precise NPT Threads: Threads are machined to ANSI/ASME B1.20.1 standards for accurate mating and tight joints.
• ✅ Multi-Size Connectivity: Reducing configuration allows for branch connections in mixed-size piping layouts.
• ✅ System Compatibility: Commonly used with Schedule 40 and Schedule 80 steel pipe systems.

Technical Specifications

• Material: Black Malleable Iron (ASTM A197)
• Main Run Size: 1-1/4 inch NPT (FPT)
• Branch Size: 3/4 inch NPT (FPT)
• Thread Standard: ANSI/ASME B1.20.1
• Pressure Rating: 150 PSI for steam; 300 PSI for air, oil, water (non-shock)
• Certifications: UL/CSA listed for applicable systems

Typical Applications

This reducing tee is commonly used in gas piping networks, hydronic heating systems, air compressors, and industrial process lines. Its reduced branch outlet provides an efficient means of tapping into larger diameter mains without excessive bulk or pressure disruption.

Field Note

For optimal performance and safety, thread sealant rated for gas or fluid service should be used during installation. Always ensure torque values are appropriate to avoid over-tightening and thread damage.

With its heavy-duty construction and precise threading, the 1-1/4" x 3/4" Black Iron Reducing Tee delivers reliable service life in demanding installations. It is a practical solution for professionals needing strong, code-compliant transitions in their pipework.