1-1/2 inch x 4 inch Galvanized Steel Nipple

1-1/2" x 4" Galvanized Steel Nipple – Contractor-Grade for Pressure Piping Systems

The 1-1/2" x 4" Galvanized Steel Nipple is fabricated from schedule 40 carbon steel and hot-dip galvanized for superior corrosion resistance in pressurized systems. Commonly used to extend pipe runs or make direct threaded connections in supply lines, this fitting is designed to deliver reliable performance in both commercial and residential applications.

This nipple is machine-cut and threaded to NPT (National Pipe Thread) standards, ensuring tight, leak-resistant joints with compatible threaded components. The hot-dip galvanization process forms a metallurgical bond between the zinc coating and steel surface, providing enhanced resistance to moisture, abrasion, and chemicals in exposed or buried service conditions.

Contractor Advantages

• ✅ Hot-Dip Galvanized – Coated to ASTM A153 specifications for extended service life in corrosive environments.
• ✅ Schedule 40 Thickness – Provides strength and pressure rating suitable for potable water, fire protection, and compressed air systems.
• ✅ Precision NPT Threads – Compatible with standard pipe fittings; ensures reliable sealing with proper thread sealant.
• ✅ Rigid Steel Body – Resists deformation under mechanical stress or torque during assembly.

Specifications

• Material: Carbon steel, hot-dip galvanized
• Nominal Pipe Size: 1-1/2 inch
• Length: 4 inches
• Threading: NPT, both ends
• Wall Thickness: Schedule 40
• Standard Compliance: Meets ASTM A733 for steel nipples

Common Applications

Ideal for water distribution lines, process piping, and mechanical system builds. Frequently used in vertical risers, pump manifolds, boiler room assemblies, and transition points between black steel and galvanized systems.

Field Note:

To prevent joint degradation, always apply PTFE tape or thread sealant rated for the fluid or gas type in use. Avoid overtightening during installation to maintain thread integrity.

The 1-1/2" x 4" Galvanized Steel Nipple offers long-term dependability in critical systems where pressure, durability, and corrosion resistance are non-negotiable. Specify this fitting when precision and longevity are required in your piping installations. 🔧