1/2 inch x 4 inch Galvanized Steel Nipple

1/2" x 4" Galvanized Steel Pipe Nipple – Threaded Schedule 40 for General Piping Applications

The 1/2" x 4" Galvanized Steel Nipple is manufactured to support rigid pipe-to-pipe connections in mechanical, plumbing, and utility piping systems. This Schedule 40 nipple features male National Pipe Thread (NPT) connections on both ends and is hot-dip galvanized for extended corrosion protection.

Ideal for systems transporting water, air, oil, or other non-corrosive fluids, this fitting allows for direct inline extension or connection between two threaded female outlets. Its robust construction and accurate threading make it suitable for both pressure and drainage applications in residential, commercial, and light industrial environments.

Product Advantages

• ✅ Hot-Dip Galvanized Finish – Provides superior protection against rust and oxidation in damp or exposed conditions.
• ✅ Full Nominal Bore – Maintains consistent flow rates and internal pressure ratings, critical for system performance.
• ✅ Schedule 40 Wall Thickness – Standard-grade pipe wall delivers strength for moderate pressure loads without excessive bulk.
• ✅ Precision-Cut NPT Threads – Tapered male ends provide a secure seal when installed with compatible female-threaded fittings and proper sealants.
• ✅ Compliant with Applicable Codes – Manufactured to meet ASTM A53/A123 standards and threaded in accordance with ANSI B1.20.1.

Technical Specifications

• Material: Carbon steel, hot-dip galvanized
• Nominal Size: 1/2 inch
• Length: 4 inches
• Wall: Schedule 40
• Thread Type: NPT (National Pipe Tapered Thread)
• Pressure Rating: Varies by system; typically up to 150 PSI for water systems (verify per application)
• Standards: ASTM A53, ASTM A123, ANSI/ASME B1.20.1

Applications

Commonly installed in potable water supply, HVAC piping, compressed air lines, sprinkler systems, and irrigation setups, this nipple is well-suited for locations where moderate pressure and resistance to corrosion are key. Its compact length is useful for bridging close-proximity pipe runs or connecting inline fittings within assemblies.

Installation Guidance

Apply pipe thread sealant or PTFE tape to male threads to achieve a leak-tight seal. Avoid overtightening to preserve thread integrity and prevent cracking in mating fittings. Always ensure system pressure ratings are not exceeded and inspect for mechanical alignment prior to operation.

Did You Know?

Galvanized steel piping is commonly used in systems not requiring copper or plastic due to its resistance to mechanical damage and low permeability, making it effective for venting, utility water distribution, and outdoor exposure.

The 1/2" x 4" Galvanized Steel Nipple offers dependable mechanical strength and corrosion resistance—ideal for any job requiring threaded pipe extensions in pressurized or non-pressurized environments. Built to meet code and perform under tough conditions.