3 inch Black Iron 90 Degree Elbow Female x Female

3” Black Malleable Iron 90° Elbow – Threaded Fitting for Directional Flow Transition

The 3 inch black malleable iron 90-degree elbow is engineered for applications requiring a change in flow direction within threaded piping systems. Manufactured in accordance with ASME B16.3 and ASTM A197 standards, this elbow is suitable for use in fuel gas, compressed air, water, and other non-corrosive fluid systems.

With NPT (National Pipe Thread) female threads on both ends, the fitting facilitates a rigid, sealed 90° transition between pipe sections. The material composition provides strength and thermal resistance, making it appropriate for installations subject to mechanical stress or elevated temperatures.

Technical Specifications

• ✅ Material: Malleable cast iron per ASTM A197
• ✅ Threading: NPT (ANSI/ASME B1.20.1), female x female
• ✅ Nominal Size: 3 inches
• ✅ Design Compliance: ASME B16.3
• ✅ Maximum Working Pressure: Typically rated up to 150 PSI for non-shock service (verify per local code and application)

Performance Features

• ✅ Precision Threading – Machined threads allow consistent sealing performance when used with appropriate thread sealant or PTFE tape.
• ✅ High Temperature Tolerance – Suitable for systems operating at elevated temperatures, such as steam or heat loop distribution.
• ✅ Mechanical Stability – Designed to maintain joint integrity in rigid system layouts where alignment and pressure retention are critical.

Common Applications

This elbow is frequently installed in black iron piping systems to enable 90° directional changes in gas supply lines, hydronic systems, and compressed air distribution. It is suitable for both horizontal and vertical orientations and can be used in residential, commercial, or light industrial environments where code-compliant black iron fittings are specified.

Material Note

Malleable iron fittings are commonly selected for their ductility and mechanical strength. When used in conjunction with thread-sealed piping systems, they offer a high level of reliability under static and dynamic loads. The black iron finish is suitable for dry or interior environments, or in systems where corrosion-resistant coating is not a design requirement.

This 3” black malleable iron 90° elbow supports robust system architecture and is widely accepted in field installations that require dependable, long-term directional flow control within pressure-rated piping networks.