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

1-1/4 inch x 1/2 inch x 1-1/4 inch Black Malleable Iron Reducing Tee – Threaded FPT

The 1-1/4 inch x 1/2 inch x 1-1/4 inch Black Malleable Iron Reducing Tee is used to join three female-threaded pipe sections in branch and run configurations, typically in low-pressure gas, oil, steam, or water systems. It provides a transition between pipe diameters, with the branch outlet sized at 1/2 inch and both run connections at 1-1/4 inch.

Constructed from black malleable iron, this fitting is suitable for above-ground applications in non-potable systems. The material offers high tensile strength and impact resistance, making it appropriate for commercial and industrial piping networks. Threads are formed per ASME B1.20.1 NPT standards to ensure a reliable, pressure-tight seal when installed with thread sealant.

Key Features

• ✅ Material: Black malleable cast iron for mechanical strength and ductility
• ✅ Size: 1-1/4 inch x 1/2 inch x 1-1/4 inch nominal pipe size (run x branch x run)
• ✅ Connection Type: NPT female-threaded (FPT) ends
• ✅ Standards: Manufactured in compliance with ASTM A197 and ASME B16.3
• ✅ Application: Suitable for air, gas, oil, and low-pressure steam lines

Typical Applications

Commonly used in black iron piping systems for natural gas distribution, heating circuits, or general-purpose industrial fluid handling. The reducing tee allows integration of smaller branch lines into main distribution lines without compromising system layout or flow efficiency.

Installation Notes

For best results, install using thread sealant or Teflon tape to ensure leak resistance. Always verify torque values and inspect threads for damage prior to assembly. Proper alignment and tightening prevent mechanical stress and thread deformation.

Additional Considerations

Black malleable iron fittings are not intended for potable water systems. Use galvanized or approved materials where drinking water compliance is required. Store fittings in dry conditions to prevent surface oxidation prior to installation.

The 1-1/4 inch x 1/2 inch x 1-1/4 inch black reducing tee is a standard component for branching transitions in NPT-threaded piping networks where mechanical strength and dimensional compatibility are critical.