1-1/4 inch x 3 inch Galvanized Steel Nipple

1-1/4" x 3" Galvanized Steel Pipe Nipple – Schedule 40, Threaded Ends

The 1-1/4" x 3" Galvanized Steel Pipe Nipple is a short, Schedule 40 threaded segment manufactured from carbon steel with a zinc coating for corrosion resistance. Commonly used for joining two female-threaded fittings or valves, this component is suitable for use in non-potable water, air, oil, and low-pressure steam systems. Its galvanization makes it ideal for indoor and exposed environments where rust protection is required.

Each nipple is fabricated in compliance with applicable ASTM and ANSI/ASME specifications, with NPT tapered threads on both ends. The zinc coating provides additional protection against oxidation in plumbing and mechanical applications. Short lengths like this are often used for alignment adjustments, valve installations, and rigid joint transitions where space is limited.

Product Specifications

• Material: Carbon steel, hot-dip galvanized
• Nominal Pipe Size: 1-1/4 inch
• Length: 3 inches overall
• Wall Thickness: Schedule 40
• Thread Type: NPT (ANSI B1.20.1), both ends
• Standard Compliance: ASTM A733 / ASTM A53, zinc coating per ASTM A123 or A153

Installation Considerations

This fitting should be installed using proper threading tools and approved sealants such as PTFE tape or pipe dope to ensure a tight, leak-resistant seal. Threads should not be over-torqued, as this may damage mating fittings or compromise the integrity of the pipe wall. Always verify compatibility with system pressure and material requirements before use.

Applications

Galvanized steel nipples of this type are widely used in:

• Compressed air systems
• Gray water and irrigation lines
• Low-pressure heating systems
• Fire protection infrastructure (dry locations)
• General-purpose mechanical and industrial piping

Material Performance Notes

Galvanized steel offers moderate corrosion protection but should not be used in potable water systems unless specified for such use. It is not suitable for use with acidic or chloride-based fluids. Where long-term corrosion resistance is critical, alternative coatings or materials such as stainless steel may be preferable depending on the service environment.

The 1-1/4" x 3" Galvanized Steel Nipple provides a reliable connection point for inline plumbing and mechanical assemblies where strength, rigidity, and corrosion resistance are required in short span applications.