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

1-1/2" x 1-1/4" Galvanized Cast Iron Bushing – Built for Secure Pipe Size Transitions

The 1-1/2" x 1-1/4" galvanized cast iron bushing is designed to reduce pipe size within threaded piping systems while maintaining system integrity under pressure. Manufactured from cast iron with a hot-dip galvanized coating, this fitting offers high resistance to corrosion and is ideal for use in potable water, HVAC, and low-pressure steam systems where durability and mechanical strength are essential.

Engineered to ANSI standards, the bushing features tapered NPT male and female threads to ensure tight engagement, reduce the likelihood of leaks, and support pressure-rated system applications. The robust cast structure provides stability against mechanical stress, while the zinc coating ensures longevity in wet or mildly corrosive environments.

Performance Characteristics

• ✅ Threaded NPT Connections Complies with ANSI B1.20.1 for consistent fit and sealing integrity
• ✅ Galvanized Finish Provides corrosion resistance and extends service life in exposed and buried systems
• ✅ Pressure-Rated Design Suitable for use in cold water distribution, air systems, and non-hazardous fluid lines
• ✅ Dimensional Accuracy Manufactured to meet close tolerances, ensuring reliable system alignment and flow continuity

Technical Specifications

• Material: Cast Iron, Hot-Dip Galvanized
• Nominal Sizes: 1-1/2" Male x 1-1/4" Female NPT
• Standards: Threads conform to ANSI/ASME B1.20.1
• Application Range: Potable water, compressed air, fire sprinkler systems, and general-purpose piping

Installation Notes

For optimal performance, apply appropriate thread sealant or Teflon tape to male threads and torque the fitting using standard practices. Ensure threads are clean and undamaged prior to assembly. Do not overtighten, as this may compromise thread integrity. This fitting is not recommended for use with acids, petroleum-based media, or aggressive chemicals.

Use Case Summary

Commonly used in both residential and commercial mechanical systems, this bushing allows for the transition between larger and smaller diameter pipe runs where space or material constraints apply. Its strength and finish make it a standard component for indoor and protected outdoor installations.

Product Insight

Galvanized cast iron bushings are chosen for their balance of affordability, durability, and resistance to internal and external wear. Their ability to maintain threaded seal integrity under varying temperature and pressure conditions makes them a reliable choice in multiple applications.

For contractors requiring long-term performance and compatibility across standard piping systems, the 1-1/2" x 1-1/4" galvanized cast iron bushing offers proven dependability and straightforward installation.