1-1/4 inch x 1/2 inch Galvanized Cast Iron Bushing

1-1/4 inch x 1 inch Galvanized Cast Iron Bushing – Threaded Fitting for Reducing Pipe Size

The 1-1/4 inch x 1 inch Galvanized Cast Iron Bushing is a reducing fitting designed for threaded pipe systems requiring a reliable transition between larger and smaller nominal sizes. Constructed from cast iron with a zinc-coated (galvanized) finish, this fitting provides mechanical strength and corrosion resistance in water, air, oil, or drainage applications.

Manufactured in accordance with ASME B16.3 and threaded per ANSI B1.20.1 standards, this bushing is commonly used in Schedule 40 steel pipe systems to join a 1-1/4 inch female fitting to a 1 inch male pipe connection. The fitting is internally and externally threaded, providing a secure, leak-resistant transition point in low- to medium-pressure systems.

Fitting Characteristics

• ✅ Galvanized Cast Iron Body – Provides enhanced corrosion protection for installations exposed to moisture or atmospheric conditions.
• ✅ Threaded Design – Female NPT outer thread x Male NPT inner thread ensures compatibility with standard pipe threads.
• ✅ Full-Pattern Reduction – Designed for secure installation in line-size changes, minimizing risk of thread distortion or joint failure.
• ✅ Pressure Rating – Suitable for systems up to 150 PSI non-shock at ambient temperatures, depending on configuration.
• ✅ Standards Compliant – Conforms to ASME B16.3 and applicable plumbing and mechanical codes.

Technical Specifications

• Material: Galvanized Cast Iron (ASTM A-197)
• Size: 1-1/4 inch Male NPT x 1 inch Female NPT
• Thread Type: ANSI B1.20.1 NPT (National Pipe Thread)
• Finish: Hot-dip galvanized for corrosion resistance
• Pressure Class: 150 PSI (non-shock)

Applications

This bushing is suitable for use in mechanical piping systems, low-pressure process lines, drainage assemblies, vent stacks, and general utility service where corrosion resistance and threaded connections are required. Common in both commercial and residential systems, it is used to reduce fitting size without requiring additional unions or couplings.

Installation Notes

Apply thread sealant or PTFE tape to male threads before assembly. Do not overtighten, as this can damage threads or distort cast fittings. Ensure alignment with mating components to maintain proper thread engagement and sealing integrity.

The 1-1/4 inch x 1 inch Galvanized Cast Iron Bushing delivers durable, code-compliant performance in reducing threaded piping configurations. Its robust construction and corrosion-resistant finish support long service life in both indoor and outdoor mechanical systems.