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

1-1/4" x 3-1/2" Galvanized Steel Nipple – Durable, Code-Compliant Threaded Connection

The 1-1/4" x 3-1/2" Galvanized Steel Nipple is built to deliver strength, corrosion resistance, and dependable sealing performance for pressurized plumbing and mechanical piping systems. Manufactured from hot-dip galvanized steel, this close nipple provides a robust solution for water, air, and non-corrosive fluid transport across residential, commercial, and light industrial applications.

Product Highlights

• Construction: Seamless carbon steel pipe, hot-dip galvanized for rust and corrosion protection
• Thread Type: NPT (National Pipe Tapered), cut to meet ANSI B1.20.1 for secure, leak-resistant joints
• Thread Engagement: Full thread for maximum sealing contact in close-connection applications
• Use Case: Ideal for short-distance threaded connections in water lines, low-pressure steam systems, or structural assemblies

Professional Advantages

• Uniform Fit: Consistent threading and dimensional tolerance improve joint integrity and reduce installation time
• Corrosion Resistance: Zinc galvanization ensures extended service life, especially in humid or exposed environments
• Application Flexibility: Compatible with galvanized malleable iron and steel fittings for a range of mechanical, plumbing, and HVAC installations

Specifications

• Nominal Size: 1-1/4 inch
• Overall Length: 3-1/2 inches
• Material: ASTM A53 or equivalent carbon steel, hot-dip galvanized to ASTM A153 standards
• Connection Type: Male NPT x Male NPT
• Pressure Rating: Suitable for non-critical applications up to 300 PSI (dependent on system design)

Installation Guidance

To ensure optimal sealing, use a compatible thread sealant or PTFE tape during assembly. Tighten to manufacturer torque guidelines and avoid over-torquing, which may damage threads or fittings. Intended for use in horizontal or vertical orientations depending on the piping system layout.

Common Applications

This galvanized steel nipple is frequently used in water distribution systems, air compressors, irrigation setups, and as a connector in steel pipe support frames or pump assemblies. Its compact length makes it particularly suitable where space constraints demand tight coupling.

Did You Know?

Threaded steel nipples remain a preferred solution for systems that require disassembly or service, offering easy access and reusability without the need for cutting or welding.

The 1-1/4" x 3-1/2" Galvanized Steel Nipple combines time-tested material integrity with standardized manufacturing for a dependable connection that professionals can rely on. Whether used in repair work or new construction, it meets the performance expectations of modern mechanical and plumbing applications.