1-1/4 inch x 48 inch Galvanized Steel Nipple

1-1/4” x 48” Galvanized Steel Nipple – Extended-Length Threaded Connector for Pressure Systems

This 1-1/4” x 48” galvanized steel nipple is manufactured for use in threaded piping systems where corrosion resistance and mechanical stability are required. With NPT threads on both ends, it provides an efficient method for joining compatible fittings or pipe sections in extended runs, reducing the need for intermediate joints or couplings.

Produced from Schedule 40 carbon steel and hot-dip galvanized to ASTM A153 or equivalent specifications, this nipple is designed to withstand exposure to moisture and moderate corrosive environments. Commonly specified in mechanical rooms, process piping, and utility distribution systems, it is suitable for conveying water, air, or low-pressure fluids in both residential and industrial contexts.

Key Advantages for System Design

• ✅ Galvanized Coating Zinc coating provides a barrier against internal and external corrosion, extending service life in wet environments.
• ✅ Full-Length Threading Male NPT threads cut to ANSI/ASME B1.20.1 standards ensure tight mechanical seals and system compatibility.
• ✅ Schedule 40 Wall Thickness Provides adequate strength for moderate to high-pressure service depending on system design.

Installer-Focused Benefits

• ✅ Factory-Threaded Ends Reduces onsite fabrication and minimizes thread misalignment or sealing issues.
• ✅ Corrosion Resistance Hot-dip galvanized surface treatment is appropriate for indoor and outdoor installation settings.
• ✅ Improved Alignment Useful for long offsets or direct line extensions with minimal joint count.
• ✅ Code-Ready Material Fabricated in compliance with applicable plumbing and mechanical system codes.

Material & Dimensional Specifications

• Material: Carbon Steel, Hot-Dip Galvanized
• Nominal Size: 1-1/4” diameter x 48” overall length
• Thread Type: Male NPT (National Pipe Thread), both ends
• Standard: Threading to ANSI/ASME B1.20.1; Galvanizing to ASTM A153 (or comparable)

Common Applications

Used in domestic water distribution systems, compressed air lines, and equipment hookups requiring rigid pipe extensions. Frequently installed in utility corridors, service risers, and structural piping layouts where a long, corrosion-resistant threaded section is needed.

Corrosion Resistance Insight

Galvanized nipples are specified when zinc protection is preferred over uncoated steel. They are not recommended for use with potable water systems where long-term zinc leaching may be a concern, unless approved for that specific application by code or engineering spec.