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

1-1/4" x 1" Black Malleable Iron Bushing – Threaded Reducer for Steel Pipe Systems

The 1-1/4" x 1" Black Iron Bushing is a reducing fitting designed to transition between larger and smaller diameter threaded pipe runs. Manufactured from black malleable iron in accordance with ASTM A197, this bushing provides a durable and pressure-rated solution for systems utilizing steel or iron pipe components.

With precision-machined NPT threads and corrosion-resistant properties suitable for non-potable applications, it supports mechanical reliability in a wide range of environments including heating, air, oil, and low-pressure gas systems.

Key Features for Professional Use

• ✅ Threaded Reducer Design Facilitates secure size transitions within threaded pipe networks where space or system layout demands adaptation.
• ✅ Black Malleable Iron Construction Offers high tensile strength and pressure resistance suitable for mechanical, HVAC, and gas system applications.
• ✅ NPT Thread Compatibility Threads conform to ANSI B1.20.1 standards, ensuring consistent engagement and sealing in standard pipe assemblies.
• ✅ Uncoated Finish Suitable for indoor dry systems or protected installations where galvanization is not required.

Technical Specifications

• Material: Malleable Iron (ASTM A197)
• Nominal Sizes: 1-1/4" Male x 1" Female Thread
• Connection Type: NPT Threaded (Hex Head Bushing)
• Applicable Standards: ANSI/ASME B16.3, B16.14, and B1.20.1

Installation Notes

Apply thread sealant or PTFE tape to male threads during installation. Tighten with an appropriate wrench on the hex body to prevent thread damage. For pressure-rated assemblies, proper alignment and thread engagement are critical to maintaining joint integrity.

Common Applications

This reducing bushing is typically used in black iron pipe systems for natural gas, compressed air, closed-loop hydronic heating, and low-pressure steam. Ideal for manifold transitions, valve fittings, or branch line reductions where a smaller threaded component must connect to a larger pipe size.

Field Consideration

Malleable iron bushings offer better shock resistance and dimensional control than cast iron alternatives. Their performance under vibration and thermal cycling makes them reliable in mechanical room and industrial piping environments.

Reliable Components for Mechanical Systems

The 1-1/4" x 1" Black Iron Bushing delivers dependable functionality in pressure-class systems requiring threaded size reduction. Its heavy-duty construction and code-compliant design make it a standard choice for professionals working in mechanical, gas, and heating installations.