2 inch x 2-1/2 inch Black Steel Nipple

2" x 2-1/2" Black Steel Schedule 40 Nipple – Threaded Pipe for Pressure Applications

The 2" x 2-1/2" Black Steel Nipple is designed for joining pipe segments in systems that transport air, gas, or non-potable water. Constructed from seamless Schedule 40 steel pipe, this fitting features NPT threads on both ends and is suitable for use in high-pressure and mechanical applications where corrosion resistance and mechanical strength are required.

This nipple is manufactured in accordance with ASTM A53/A733 specifications and is typically used in industrial, commercial, and mechanical system installations, including heating loops, compressed air systems, and gas lines. Its black finish is achieved through a protective oil coating to deter oxidation during storage and handling.

Product Features

• Nominal Pipe Size: 2 inches
• Length: 2-1/2 inches overall (close nipple)
• Material: Welded or seamless black steel (ASTM A53 Grade B or equivalent)
• Wall Thickness: Standard Schedule 40
• Thread Type: ANSI B1.20.1 NPT (male x male)
• Pressure Rating: Typically 150 psi to 300 psi (varies with system design and media)
• Temperature Range: Up to 400°F in compatible systems (verify media and sealant specs)

Common Applications

• • Natural gas and propane distribution networks
• • Compressed air systems in manufacturing or warehouse environments
• • Mechanical room piping assemblies
• • Process piping in industrial facilities

Installation Notes

Install with appropriate thread sealant or PTFE tape rated for the system media. Thread engagement should be 3.5 to 5 full turns to ensure leak resistance without over-tightening. Use pipe wrenches or strap wrenches suitable for the nipple diameter. Inspect threads for burrs or contamination before assembly.

Compliance

• Standards: Complies with ASTM A53/A733, ANSI B1.20.1
• Code Applications: May be installed in systems subject to ASME B31.3 or B31.1, as applicable

The 2" x 2-1/2" Black Steel Nipple offers dependable performance in demanding environments, providing secure mechanical joints for pipe runs across a range of commercial and industrial uses. Its compact size makes it ideal for close-coupled connections or threaded transitions in tight mechanical spaces.