3/8 inch x 1/4 inch Black Iron Bushing

3/8 Inch x 1/4 Inch Black Iron Bushing – Reducing Hex Fitting

This 3/8 inch x 1/4 inch black iron reducing bushing is engineered for professional-grade performance in gas, water, and oil piping systems. Featuring a hex head for tool-assisted installation, it allows a secure and space-efficient transition between differing pipe sizes in threaded iron pipe assemblies.

Engineered for Commercial-Grade Systems

Manufactured from robust black malleable iron, this fitting is designed to handle moderate pressure applications while maintaining joint integrity. It is commonly used in heating, ventilation, compressed air, and fuel gas systems, offering dependable service in demanding environments.

• ✅ Threaded NPT Ends – Tapered female and male National Pipe Threads (NPT) ensure consistent engagement and a tight seal when properly installed.
• ✅ Malleable Iron Construction – Provides strength and machinability, enabling reliable performance under vibration and thermal cycling.
• ✅ Corrosion-Resistant Coating – Exterior black finish protects against rust during storage and transport; suitable for non-corrosive fluid conveyance.
• ✅ Precision Machined – Threads are cut to industry standards, allowing uniform engagement across mating components.

Technical Specifications

• Material: Black malleable iron
• Size: 3/8 inch Male NPT x 1/4 inch Female NPT
• Connection Type: Threaded – Reducing Hex Bushing
• Operating Pressure: Rated for low- to moderate-pressure systems depending on thread engagement and sealing method
• Standard Compliance: Meets applicable ASME B16.3 and ASTM A197/A47 requirements for malleable iron fittings

Installation Guidelines

Threaded iron fittings should be installed using appropriate sealing materials (e.g., thread sealant or PTFE tape) to reduce leak risk. Over-torquing may damage threads or cause stress failures. Torque recommendations and fitting compatibility should be verified before system pressurization.

Common Applications

This reducing bushing is typically used in black pipe systems for gas distribution, closed-loop hydronic heating, and compressed air setups. It is suitable for indoor or protected installations where mechanical strength and pressure containment are required.

Material Insight

Black iron fittings are preferred for their structural integrity and are widely implemented in industrial environments where brass or copper may not offer sufficient durability. Their use in gas systems is due to both code acceptance and material reliability under pressure.