2 inch x 5-1/2 inch Galvanized Steel Nipple

Galvanized Steel Nipple – 2” x 5-1/2” for Threaded Steel Pipe Assemblies

The 2” x 5-1/2” Galvanized Steel Nipple is a schedule 40 fitting designed for joining threaded steel pipe sections in mechanical, plumbing, and fluid distribution systems. Constructed from hot-dipped galvanized steel, this component provides both structural integrity and corrosion protection for above-ground applications.

This nipple features male threads on both ends (NPT), allowing direct connection between female-threaded components in systems transporting air, water, oil, or steam. It is commonly specified in systems where moderate pressure and durability are required, such as pump assemblies, pressure vessels, and distribution manifolds.

Performance Features

• ✅ Thread Standardization: NPT threads machined to ANSI/ASME B1.20.1 specifications for consistent fit and torque.
• ✅ Galvanized Coating: Zinc coating applied via hot-dip process for resistance to moisture and corrosion.
• ✅ Mechanical Strength: Fabricated from ASTM A53-grade or equivalent carbon steel for use in load-bearing configurations.
• ✅ Length Tolerance: Designed with a true 5-1/2" overall length including thread run-out, suitable for precision piping offsets.
• ✅ Application Versatility: Compatible with both potable water (when permitted by code) and non-potable utility systems.

Technical Specifications

• Material: Hot-Dipped Galvanized Carbon Steel
• Nominal Size: 2 inches
• Length: 5-1/2 inches overall
• Connection Type: Male Threaded x Male Threaded (NPT)
• Standards: Conforms to ASTM A733 for pipe nipples; threading per ASME B1.20.1

Installation Guidelines

Install using standard wrench techniques and apply thread sealant or PTFE tape to male threads prior to assembly. Do not overtighten, as this may compromise thread integrity. Suitable for rigid steel piping systems where threaded joining is required without welding or flanging.

Applications

Typical uses include industrial and commercial water distribution, HVAC pipe connections, pump inlets and outlets, and system transitions in utility piping. The galvanized finish is recommended for above-ground exposure and general atmospheric conditions; not intended for buried or highly corrosive environments without additional protective measures.

Material Note

Galvanized steel pipe nipples are widely used for their strength-to-weight ratio and resistance to rust in non-acidic environments. They are often selected for pressure-rated piping infrastructure in mechanical rooms, plant utilities, and retrofits involving steel system tie-ins.

The 2” x 5-1/2” Galvanized Steel Nipple provides a durable and code-compliant solution for threaded steel system fabrication and repair. Specify as needed for pressure lines requiring moderate corrosion protection and mechanical reliability.