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

1-1/2" x 1/2" Galvanized Cast Iron Bushing – Tapered Thread Reduction for Secure Pipe Transitions

The 1-1/2" x 1/2" Galvanized Cast Iron Bushing is engineered to facilitate pipe size transitions in threaded systems while maintaining mechanical integrity. Manufactured from durable cast iron and hot-dip galvanized to ASTM A153 standards, this bushing is suitable for water, steam, air, and oil applications within approved temperature and pressure ratings.

Key Performance Features

• Material: Cast iron with hot-dip galvanized coating to improve corrosion resistance in wet or humid environments
• Connection: Female NPT (1-1/2") x Male NPT (1/2") – ANSI/ASME B1.20.1 compliant tapered threads
• Design: Hexagonal body for easy installation using standard wrenching tools
• Operating Conditions: Typically rated up to 150 psi for steam and 300 psi for non-shock water, oil, or air at ambient temperatures
• Application Range: Compatible with galvanized or black iron pipe in mechanical, plumbing, and HVAC systems

Installation Guidance

This bushing should be installed using appropriate thread sealants (such as PTFE tape or thread compound) to ensure leak resistance in pressurized systems. Torque should be applied evenly and within recommended limits to avoid thread galling or overtightening. Not for use with potable water unless explicitly listed as lead-free under NSF/ANSI 372 or similar certifications.

Typical Applications

Used extensively in mechanical pipe assemblies, this bushing enables a reduction in nominal pipe size within tees, manifolds, or valves. Commonly installed in compressed air lines, fire protection loops, industrial fluid systems, and utility piping where size transitions must be secure and code-compliant.

Additional Information

Galvanized cast iron fittings are valued for their durability and resistance to mechanical damage during handling and installation. The zinc coating adds protection in corrosive settings such as basements, crawlspaces, and unconditioned service rooms.

Professionals seeking a rugged, code-compliant fitting for high-integrity pipe transitions rely on components like the 1-1/2" x 1/2" Galvanized Cast Iron Bushing. Built for demanding conditions, it supports efficient workflows with fewer installation failures and reduced service calls.