1/8 inch Black Iron 90 Degree Elbow Female x Female

1/8 inch Black Malleable Iron 90° Elbow – Female x Female Threaded Fitting

The 1/8 inch Black Malleable Iron 90° Elbow is designed for changing direction in threaded pipe systems. Manufactured from ASTM A197 malleable cast iron, this fitting features female NPT threads on both ends and allows for a 90-degree change in flow direction within gas, water, oil, or air distribution systems. It is suitable for low- to medium-pressure service in commercial and residential mechanical piping applications.

Compliant with ASME B16.3 standards, this elbow is pressure-rated and dimensionally accurate to support system integrity in plumbing layouts that require compact directional changes without compromising strength or sealing capability.

Specifications

• Material: Black Malleable Cast Iron (ASTM A197)
• Nominal Size: 1/8 inch
• Connection Type: NPT Female x Female (ANSI B1.20.1)
• Bend Angle: 90 Degrees
• Conformance: ASME B16.3 and UL/FM listings where applicable
• Maximum Pressure: Up to 300 PSI (non-shock water, oil, air); 150 PSI for steam

Installation Guidelines

Use with compatible male-threaded pipe or fittings. Apply thread sealant or PTFE tape suitable for the system media. Do not overtighten to prevent damage to threads or stress cracking. Pipe wrenches should be applied at the fitting body to avoid stress on other components.

Application Areas

Commonly used in gas distribution networks, hydronic heating loops, air compressor lines, and general industrial piping systems. Ideal for confined spaces or compact system layouts requiring precise 90° directional changes without excessive fitting bulk.

Material and Performance Insight

Malleable iron offers a balance of mechanical strength and ductility, providing excellent resistance to impact, temperature fluctuation, and mechanical vibration. Its black finish is suitable for indoor applications not requiring corrosion protection from galvanization.