3/4 inch Black Iron Tee Female x Female x Female

3/4″ Black Iron Tee – Built for High-Demand Pipe Systems

The 3/4″ Black Iron Tee is a threaded fitting designed for connecting three equal-sized pipes at a 90-degree junction in supply and distribution lines. Made from malleable black iron, this fitting is intended for use in non-potable water, air, gas, and steam systems where high durability and mechanical strength are essential.

This tee is pressure-rated and conforms to ANSI/ASME B16.3 standards, providing consistent performance in both residential and commercial environments. Its female threaded ends are precisely machined to ensure tight, secure connections that resist leaks and maintain system integrity under varying loads and pressures.

Key Features

• ✅ Material: Malleable black iron for excellent strength and heat resistance
• ✅ Connection Type: NPT female threads on all three ports for compatibility with threaded steel pipe
• ✅ Operating Pressure: Suitable for use in systems up to 150 PSI (non-potable water and air), and higher pressures in certain steam or gas applications
• ✅ Corrosion Resistance: Exterior black finish provides a degree of rust resistance; for indoor use or systems where rust protection is not primary
• ✅ Conformance: Meets ASTM A197 and ANSI/ASME B16.3 specifications

Applications

This black iron tee is commonly installed in:

• • Hydronic heating systems
• • Low-pressure gas distribution (natural gas, propane)
• • Fire sprinkler pipe networks
• • Industrial air lines and steam systems

Installation Considerations

Installation involves threading each pipe into the corresponding female port using appropriate sealants such as PTFE tape or pipe dope. Torque should be applied evenly to prevent cracking or misalignment. Always ensure system compatibility with black iron before installation, especially in chemically aggressive or potable water environments where alternative materials may be required.

Note:

This fitting is not suitable for use in potable water systems due to potential corrosion and leaching risks associated with untreated black iron. For drinking water applications, galvanized or lead-free brass alternatives should be considered.

Engineered for durability and reliability in demanding conditions, the 3/4″ Black Iron Tee is a dependable choice for professionals building or maintaining robust mechanical piping systems.