1-1/2 x 1-1/4 Black Iron Reducing Tee Female x Female x Female

1-1/2 inch x 1-1/4 inch Black Malleable Iron Reducing Tee – Industrial-Grade Performance

This black iron reducing tee is engineered for professionals requiring high-integrity connections in gas, steam, or hydronic systems. Manufactured from black malleable iron, this fitting supports robust system integrity while transitioning between 1-1/2 inch and 1-1/4 inch pipe diameters.

Designed to meet rigorous jobsite demands, this fitting maintains structural reliability across a range of pressure environments. It features three FPT (female pipe thread) openings to support branch and run configurations in closed-loop or open plumbing applications.

Specification and Use

When deployed correctly, black iron fittings provide a mechanically sound, corrosion-resistant solution for line branching, particularly in natural gas, propane, and low-pressure hydronic lines. This tee is ideal for retrofits, manifold transitions, or where equipment requires different diameter feeds.

• ✅ Material: Malleable iron, Class 150
• ✅ Size: 1-1/2 inch x 1-1/4 inch NPT
• ✅ Connection Type: Female National Pipe Thread (FPT) on all three ends
• ✅ Finish: Black oxide coating for added corrosion resistance in dry environments
• ✅ Operating Pressure: Pressure-rated to ANSI/ASME B16.3 and B16.14 specifications

Installation Notes

Threaded iron fittings require proper thread preparation to ensure leak-free performance. Use appropriate thread sealant compounds or PTFE tape rated for the application. Over-torquing can lead to fitting stress and should be avoided. Install in accordance with local code requirements.

Applications

Commonly integrated into commercial and industrial piping systems, this reducing tee is suitable for:

• • Gas distribution lines (natural gas, propane)
• • Hydronic heating loops and manifolds
• • Low-pressure steam or air service
• • Structural or mechanical branch connections in black iron systems

Technical Consideration

Black malleable iron is preferred in threaded systems for its tensile strength and ductility under mechanical stress. Unlike galvanized counterparts, black iron fittings are specified where zinc-free, fire-safe components are required.