3/4 inch x 1/4 inch Black Iron Bushing

3/4" x 1/4" Black Iron Bushing – Threaded Reducing Fitting for Pipe Transitions

The 3/4" x 1/4" Black Iron Bushing is a threaded reducing fitting used to connect pipes of dissimilar sizes in systems requiring durable and corrosion-resistant components. Manufactured from black malleable iron, this fitting is suitable for both natural gas and hydronic systems, where strength and thread integrity are critical for safe, long-term operation.

Engineered for use in standard NPT threaded systems, this bushing ensures a secure, leak-resistant joint when installed with appropriate thread sealants. The hexagonal head design facilitates easy tightening with a wrench, making it practical for confined space applications or retrofits.

Product Specifications

• Material: Black Malleable Iron
• Size: 3/4" Male NPT x 1/4" Female NPT
• Connection Type: Threaded (NPT – ANSI B1.20.1)
• Design: Hex head for wrench installation
• Pressure Rating: Suitable for low- and medium-pressure applications
• Compliance: Meets ASTM A197 and ASME B16.3 standards

Common Applications

• Natural gas distribution lines
• Low-pressure steam systems
• Hydronic heating systems
• General-purpose plumbing requiring pipe size transitions

Installation Notes

This fitting should be installed using standard practices for threaded iron pipe systems. Apply PTFE tape or pipe dope to male threads prior to assembly. Avoid over-tightening to prevent thread deformation. Final assembly should allow for mechanical alignment using the hex head for wrenching.

Material Insight

Black malleable iron is widely used in gas, oil, and water systems due to its strength, pressure tolerance, and ability to resist rust under dry conditions. This makes it a reliable material choice for applications where longevity and structural integrity are required.

The 3/4" x 1/4" Black Iron Bushing is a dependable choice for professional-grade installations where threaded size transitions must be both secure and code-compliant. It is a compact, effective solution for adapting pipe systems without sacrificing performance.