2 inch x 48 inch Black Steel Nipple

2" x 48" Black Steel Nipple – Threaded Pipe Extension for Mechanical and Industrial Applications

The 2" x 48" Black Steel Nipple is a straight, schedule-grade steel component with male NPT threads on both ends, designed for use in systems requiring extended linear connections. Its long length and durable carbon steel construction make it ideal for medium- to high-pressure applications involving gas, air, water, and steam in commercial, industrial, and mechanical installations.

Manufactured from seamless or welded black steel pipe to meet applicable dimensional tolerances, this fitting ensures alignment accuracy and thread integrity over extended runs. Suitable for integration with black iron fittings, valves, and structural supports.

Product Features

• ✅ Threaded Male NPT Ends – Machined to ANSI/ASME B1.20.1 specifications for secure joint engagement and compatibility with threaded systems.
• ✅ Carbon Steel Construction – Provides high mechanical strength for load-bearing and pressure-rated applications.
• ✅ Black Finish – Standard coating for non-potable use, offering moderate resistance to atmospheric corrosion in dry environments.
• ✅ Extended Reach – 48-inch length enables spacing between components, bypassing structural obstructions, or replacing long pipe sections without couplings.
• ✅ Pressure-Tolerant – Suitable for fuel gas, compressed air, and low-pressure steam systems where consistent sealing and rigidity are required.

Installation Notes

Installation should follow pipefitting best practices using calibrated pipe wrenches and approved thread sealant or PTFE tape. Care should be taken to avoid over-torquing, which may distort threads or affect mating component alignment. Verify pipe threads are clean and fully engaged before pressurizing the system. This component is not intended for potable water use unless coated or lined appropriately.

Typical Applications

This fitting is commonly installed in natural gas lines, HVAC system risers, boiler room manifolds, air compressor connections, and fire suppression supply loops. It serves as a rigid connector where alignment precision, thread security, and pipe length continuity are critical.

Material Insight

Black steel pipe nipples are used extensively in utility-grade piping systems due to their strength, machinability, and ease of joining. Their uncoated surfaces are suitable for indoor installations and protected mechanical spaces not exposed to continuous moisture or corrosive chemicals.

Technical Specifications

• Material: Black Carbon Steel
• Nominal Size: 2 inch
• Length: 48 inches
• Connection Type: Male NPT x Male NPT
• Finish: Black (non-galvanized)
• Compliance: ANSI/ASME B1.20.1 and B36.10M dimensional standards

The 2" x 48" Black Steel Nipple provides a robust and mechanically secure solution for extended piping connections in threaded steel systems. It is engineered to meet jobsite demands in high-pressure and long-run installations where performance, alignment, and durability are essential.