1-1/4 inch x 48 inch Black Steel Nipple

1-1/4" x 48" Black Steel Pipe Nipple – Designed for Heavy-Duty Threaded Applications

The 1-1/4" x 48" Black Steel Nipple is fabricated to meet rigorous mechanical and industrial standards, offering a dependable solution for extending threaded connections in water, air, oil, or gas systems. Manufactured from schedule 40 black steel pipe, this component is ideal for high-pressure installations where strength and corrosion resistance are required.

Key Performance Features

• ✅ Threaded Ends – Precision-cut NPT threads ensure tight, consistent engagement for a leak-resistant seal.
• ✅ Seamless Carbon Steel Construction – Provides strength and uniform wall thickness for structural and pressure integrity.
• ✅ Extended Reach – Full 48" length suitable for bridging long gaps or routing pipe around obstacles.
• ✅ Corrosion-Resistant Coating – Black oxide finish protects against atmospheric corrosion during storage and installation.

Product Specifications

• Size: 1-1/4 inch nominal diameter
• Length: 48 inches
• Material: ASTM A53 grade black steel
• Connection: Male NPT threads on both ends
• Pipe Schedule: Schedule 40
• Application: Non-potable water, air, gas, and steam systems

Installation Notes

Threaded black steel nipples should be installed using compatible female-threaded fittings and sealed using approved thread sealants or PTFE tape. Use proper torque during tightening to avoid thread galling or overcompression. Suitable for both vertical and horizontal orientations in rigid piping configurations.

Common Use Cases

This fitting is frequently utilized in heating loops, hydronic heating lines, gas supply systems, and compressed air setups. It is compatible with standard black malleable iron and forged steel fittings.

Code and Compliance

Black steel pipe nipples must be installed in accordance with applicable plumbing and mechanical codes. While not intended for potable water systems, they meet specifications for industrial and mechanical pressure systems.

The 1-1/4" x 48" Black Steel Nipple delivers dependable performance for threaded piping assemblies that demand durability, tight sealing, and extended reach. Its rugged construction and adherence to industry standards make it a staple in professional-grade mechanical installations.