1/4 inch Black Iron Tee Female x Female x Female

1/4" Black Malleable Iron Tee – Threaded FPT for Low-Pressure Piping Applications

The 1/4" Black Iron Tee is a three-outlet fitting designed for use in threaded piping systems where a 90-degree branch connection is required. Constructed from malleable cast iron per ASTM A197, this tee features triple FPT (female pipe thread) ends manufactured to ANSI/ASME B1.20.1 standards, providing compatibility with carbon steel and other ferrous piping materials.

With a black oxide finish suitable for non-corrosive, indoor environments, this fitting is commonly used in natural gas, air, and non-potable water systems. It supports branch integration in rigid piping configurations and is rated for systems built to ASME B16.3 pressure and temperature guidelines.

Product Characteristics

• ✅ Malleable Cast Iron Body – Delivers mechanical strength and ductility suitable for structural piping connections.
• ✅ Triple FPT Connection – Female-threaded in all three directions to allow inline and branch integration without welding or soldering.
• ✅ Compact 1/4" Size – Enables use in small-diameter process lines, appliance hookups, and confined assemblies.
• ✅ Black Finish – Designed for systems not requiring corrosion protection beyond atmospheric exposure; typically used in gas piping.
• ✅ Dimensional Compliance – Conforms to ASME B16.3 tolerances for thread alignment and center-to-end consistency.

Installation Notes

Install with NPT-compatible pipe and apply appropriate thread sealant (pipe dope or PTFE tape) to prevent leakage. Ensure proper thread engagement without over-torquing, which can damage fitting threads or affect sealing surfaces. Recommended for use in rigid, mechanically supported systems.

Specifications

• Material: Black malleable cast iron (ASTM A197)
• Connection Type: FPT x FPT x FPT (NPT)
• Nominal Size: 1/4 inch
• Standards: ASME B16.3, ANSI/ASME B1.20.1

Common Applications

This tee is used to join three sections of threaded steel or iron pipe in compressed air systems, low-pressure steam, natural gas distribution lines, or oil service networks. Its compact form factor is ideal for branch take-offs, equipment supply lines, and assembly layouts requiring a fixed 90-degree configuration.

Material and Use Consideration

Black malleable iron is often specified in non-potable systems for its strength and ease of fabrication. It is not recommended for potable water unless separately certified and internally lined. The fitting's structure supports reliable performance in vibration-prone or high-thermal-expansion environments when properly installed.

The 1/4" Black Iron Tee provides a durable, pressure-rated connection point for threaded piping networks in mechanical, industrial, and fuel gas installations. Its precision-machined threads and rugged construction ensure consistent performance where secure, leak-resistant tee junctions are required.