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

1-1/4" x 4-1/2" Galvanized Steel Nipple – Built for High-Integrity Plumbing Connections

The 1-1/4" x 4-1/2" Galvanized Steel Nipple is engineered for durability and consistent performance in water, gas, and low-pressure steam systems. Fabricated from carbon steel and hot-dip galvanized for enhanced corrosion resistance, this fitting is designed to support threaded piping systems in both commercial and residential applications.

Product Features

• Material: Carbon steel, hot-dip galvanized in accordance with ASTM A153
• Size: Nominal 1-1/4" diameter, 4-1/2" overall length
• Connection Type: Male NPT threads on both ends, per ANSI/ASME B1.20.1
• Manufacturing Standard: Meets ASTM A733 for steel pipe nipples

Performance Advantages

• Corrosion Protection: Zinc coating provides a protective barrier against moisture, making it suitable for both indoor and exposed environments
• Pressure Capability: Rated for systems up to 300 PSI, depending on system design and pipe schedule
• Thread Integrity: NPT taper threads ensure mechanical strength and a leak-resistant joint when installed with appropriate thread sealant
• Load-Bearing Design: Ideal for rigid connections and structural support in pipeline layouts

Application Scope

Commonly installed in potable water distribution systems, HVAC loops, fire protection risers, and gas piping infrastructure. The galvanized finish makes it appropriate for service in corrosive environments such as basements, mechanical rooms, or outdoor riser systems where moisture exposure is anticipated.

Installation Recommendations

Ensure thread engagement is full and consistent; use compatible sealing compounds or PTFE tape to achieve a gas- or water-tight connection. Always check torque values to prevent overtightening, which may lead to thread distortion or pipe stress.

Did You Know?

Galvanized pipe fittings like this one are often used in municipal and industrial piping systems where longevity and mechanical strength are critical. The hot-dip zinc coating process ensures uniform adhesion and longer life span compared to electroplated alternatives.

The 1-1/4" x 4-1/2" Galvanized Steel Nipple combines structural strength, corrosion resistance, and precision threading to meet the performance demands of professional-grade plumbing systems. Specify this fitting for projects that require consistent reliability in demanding environments.