1-1/4 inch x 3/4 inch Galvanized Cast Iron Bushing

1-1/4" x 3/4" Galvanized Cast Iron Bushing – For Durable, Code-Compliant Reductions

The 1-1/4" x 3/4" galvanized cast iron bushing is engineered to reduce pipe size in threaded pipe systems while maintaining structural integrity and flow reliability. Manufactured from ASTM A-197 cast iron and hot-dip galvanized per ASTM A153, this fitting offers a high level of corrosion resistance and mechanical strength appropriate for both indoor and outdoor installations.

Applications

This reducing bushing is typically installed in pressurized water, steam, air, or gas systems where adapting between pipe sizes is necessary. It’s suited for residential, commercial, and light industrial service, including mechanical rooms, utility infrastructure, and general-purpose systems. Designed for use in threaded iron pipe systems, it is not intended for potable water applications unless confirmed compliant with lead-free standards.

Key Product Features

• Material: Malleable cast iron per ASTM A-197
• Finish: Hot-dip galvanized to ASTM A153 for corrosion resistance
• Size: 1-1/4" Male NPT x 3/4" Female NPT
• Design: Hex head for wrench-tight installation
• Thread Type: ANSI B1.20.1 standard tapered pipe threads
• Pressure Rating: Generally suitable for up to 150 psi for steam and 300 psi for water, air, or gas (verify with local code and manufacturer specs)

Installation Considerations

Install using appropriate pipe joint compound or PTFE tape rated for the system's intended use. Over-torquing may cause damage to the fitting or mating components. All installations should be performed in accordance with ASME B31.1 or B31.3 as applicable and in compliance with local code requirements.

Use Case Overview

Commonly used in mechanical rooms, riser manifolds, compressed air lines, and HVAC branch reductions. This fitting provides a compact and durable solution for transitions between dissimilar nominal pipe diameters in threaded systems.

Compliance

Conforms to ANSI/ASME standards for dimensions and threading. Galvanized finish provides superior resistance to atmospheric corrosion in non-potable water and mechanical systems.