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

1-1/2" x 1-1/2" x 1/2" Black Malleable Iron Reducing Tee – Threaded Fitting for Low-Pressure Piping Systems

The 1-1/2" x 1-1/2" x 1/2" Black Malleable Iron Reducing Tee is a threaded cast fitting used to join two equal pipe runs with a reduced branch outlet. Suitable for applications requiring a transition between pipe diameters, this tee supports gas, oil, air, and water distribution systems where mechanical strength and corrosion resistance are essential.

Manufactured in accordance with ASME B16.3 and threaded per ANSI B1.20.1 standards, the fitting features female National Pipe Taper (NPT) threads on all three ends. It is intended for use in systems operating within standard working pressure and temperature ranges and is compatible with Schedule 40 or Schedule 80 steel pipe.

Performance Characteristics

• ✅ Cast Malleable Iron Body – Offers high tensile strength and dimensional stability under varying pressure conditions.
• ✅ Reducing Branch Design – Allows for branching from 1-1/2" main lines to 1/2" service lines without additional reducers or bushings.
• ✅ Black Coated Finish – Protects against surface rust during storage and transport; intended for non-potable systems.
• ✅ NPT Thread Compatibility – Designed for tight, secure joints in pressurized or non-pressurized threaded systems.
• ✅ Code Compliant – Conforms to applicable plumbing and mechanical codes for non-potable fluid and gas transport.

Technical Specifications

• Material: ASTM A197 Malleable Iron
• Nominal Sizes: 1-1/2" x 1-1/2" x 1/2"
• End Type: Female NPT x Female NPT x Female NPT
• Standards: ASME B16.3; Threads per ANSI B1.20.1
• Pressure Rating: Up to 150 PSI (non-shock, WOG)

Installation Considerations

Use of a thread sealant or PTFE tape is recommended on all male threads to ensure a leak-resistant connection. Avoid excessive torque that may result in thread deformation or fitting fracture. This fitting is not intended for underground use without additional corrosion protection and is not rated for potable water systems unless properly coated or lined.

Common Applications

Widely used in gas distribution networks, hydronic heating loops, air compressor piping, and non-potable water systems. The reducing configuration is suitable for branch takeoffs in mechanical spaces or transitions where smaller line sizes are needed for terminal fixtures or equipment.

Regulatory Note

Black iron fittings are approved for use in natural gas and propane systems when installed in accordance with local and national fuel gas codes (e.g., NFPA 54). Always confirm material compatibility and approval with the authority having jurisdiction (AHJ) prior to installation.