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

2" x 5-1/2" Black Steel Nipple – Precision Threaded for Heavy-Duty Connections

The 2" x 5-1/2" Black Steel Nipple is fabricated for use in systems requiring durable, threaded connections capable of withstanding high internal pressures. Manufactured from schedule 40 welded steel pipe, this fitting is suited for low-pressure applications in oil, gas, and water lines where corrosion resistance from galvanizing is not required.

Key Performance Features

• ✅ Threading: Precision-machined NPT (National Pipe Thread) tapered threads ensure optimal engagement and a tight seal.
• ✅ Material: ASTM A53 grade black steel, offering robust performance in commercial and industrial service lines.
• ✅ Wall Thickness: Schedule 40 – compatible with common pipe systems and fittings.
• ✅ End Finish: Both ends threaded with chamfered edges for ease of assembly and improved safety during installation.

Installation Considerations

Installation should be performed using standard pipe wrenches. Thread sealant or PTFE tape is recommended to ensure joint integrity and prevent leaks. Tightening torque should be appropriate to avoid over-stressing threads or fittings.

Common Applications

This black steel nipple is typically employed in:

• Natural gas and propane distribution systems
• Closed-loop hydronic heating circuits
• Compressed air networks
• Low-pressure steam lines

Code & Compliance

Manufactured to conform to ASME B1.20.1 threading standards and dimensional tolerances per ASTM A733 for pipe nipples.

Note:

Black steel pipe and nipples are not recommended for potable water applications due to the absence of corrosion-resistant coating. For water systems, galvanized or other approved corrosion-resistant materials should be used.