1-1/4 inch x 24 inch Galvanized Steel Nipple

1-1/4" x 24" Galvanized Steel Pipe Nipple – Threaded Schedule 40 Carbon Steel

The 1-1/4" x 24" Galvanized Steel Nipple is a Schedule 40 carbon steel fitting designed for threaded connections in water, air, oil, and non-potable gas systems. Hot-dip galvanized in accordance with ASTM A153, this nipple provides extended corrosion resistance for above-ground mechanical installations.

Both ends feature NPT (National Pipe Taper) threads per ANSI/ASME B1.20.1, ensuring compatibility with standard threaded fittings and valves. Commonly used to bridge system gaps or connect assemblies requiring linear runs, the 24-inch length supports alignment flexibility in long piping configurations.

Technical Specifications

• Nominal Pipe Size: 1-1/4 inch
• Length: 24 inches (overall nipple length)
• Wall Thickness: Schedule 40
• Material: Welded carbon steel, zinc-coated (galvanized)
• Thread Type: ANSI/ASME B1.20.1 NPT – Male x Male
• Standard Compliance: ASTM A733 (pipe nipples), ASTM A53/A106 (base pipe), ASTM A153 (galvanizing)

Installation Considerations

This nipple is intended for use in threaded mechanical systems. Apply an appropriate pipe joint compound or PTFE tape to male threads before assembly. Tighten using a pipe wrench to specified torque values based on pipe diameter and system pressure. Do not overtighten, as this may damage threads or affect alignment. Thread protectors should be removed prior to installation.

Common Applications

Used extensively in water supply distribution, mechanical piping, fire protection (non-potable zones), and low-pressure steam or air systems. The 24-inch length is ideal for long-span runs between structural supports, outlet manifolds, or equipment terminations in commercial and light industrial construction.

Performance Notes

Galvanized pipe is not approved for potable water systems in all jurisdictions due to potential zinc leaching or scale formation. Confirm material suitability with local codes before use. Not intended for underground or corrosive chemical environments without supplemental protection.

Threaded Carbon Steel Nipple for Above-Ground Piping Systems

The 1-1/4" x 24" Galvanized Steel Nipple delivers dimensional reliability, corrosion resistance, and code-compliant performance for threaded piping applications. Built to withstand mechanical stresses in utility piping, it provides a secure, pressure-rated connection for new construction and retrofit installations.