3/4 inch x 1-1/2 inch Galvanized Steel Nipple

3/4" x 1-1/2" Galvanized Steel Nipple – Built for Threaded System Integrity

The 3/4" x 1-1/2" Galvanized Steel Nipple is fabricated for use in rigid piping systems requiring corrosion resistance, mechanical durability, and a precise threaded connection. This fitting provides a short-length extension between female-threaded components in applications such as water distribution, air lines, and low-pressure gas systems.

Hot-dip galvanized to ASTM A153 standards, the coating provides a uniform zinc layer to inhibit rust formation, making it suitable for environments exposed to moisture or fluctuating temperatures. The pipe threads conform to ASME B1.20.1 standards for NPT (National Pipe Thread) compatibility, ensuring a consistent seal across mating components.

Key Product Features

• ✅ Construction: Carbon steel base pipe, hot-dip galvanized for extended corrosion protection
• ✅ Threaded Ends: NPT male threads machined to ASME B1.20.1 tolerances
• ✅ Schedule 40 Wall Thickness: Suitable for typical low- to moderate-pressure applications in commercial and industrial systems
• ✅ System Compatibility: Interfaces with black iron, galvanized, or brass components

Technical Specifications

• Nominal Size: 3/4 inch
• Length: 1-1/2 inches
• Material: Steel, hot-dip galvanized
• Thread Type: Male NPT x Male NPT
• Applicable Standards: ASTM A733 (nipple dimensions), ASTM A153 (zinc coating), ASME B1.20.1 (thread form)

Installation Considerations

Installation requires use of appropriate thread sealing materials—either PTFE tape or pipe dope—especially in pressurized systems. Torque should be applied using a pipe wrench, avoiding over-tightening that can deform threads. When joining to dissimilar metals, ensure galvanic corrosion is accounted for in system design.

Application Areas

This galvanized steel nipple is used in hydronic piping, water service lines, HVAC mechanical systems, low-pressure gas transport, and process piping where moisture exposure is likely. It is especially common in commercial retrofit installations and industrial maintenance applications.

Note on Material Performance

Galvanized steel offers a service life of 20 to 50 years in most water service conditions, depending on water chemistry and mechanical load. Not recommended for use in systems conveying acidic or high-chloride content fluids.

The 3/4" x 1-1/2" Galvanized Steel Nipple combines dimensional accuracy with zinc-coated corrosion protection, making it a staple component in threaded steel piping systems where durability and code-compliant connections are required.