1 inch x 8 inch Black Steel Nipple

1" x 8" Black Steel Nipple – Industrial-Grade Threaded Pipe for Secure Connections

The 1" x 8" Black Steel Nipple is manufactured to deliver robust, threaded connections in non-potable plumbing and mechanical piping systems. Constructed from welded Schedule 40 black steel, this fitting provides the strength and dimensional precision required for high-integrity systems, including low-pressure gas and oil lines, HVAC components, and hydronic heating networks.

With NPT tapered threads at both ends, this pipe nipple offers compatibility with a wide range of standard iron and steel pipe fittings. Its uniform threading and corrosion-resistant surface treatment make it an essential component for industrial and commercial applications where reliable sealing is critical.

Advantages of Using High-Quality Black Steel Nipples

• ✅ Threaded Accuracy – Machined to meet ANSI B1.20.1 NPT standards, providing a consistent fit that minimizes joint failure risks.
• ✅ Heavy-Duty Welded Seam – Fabricated with precision-welded seam construction to support structural stability under stress.
• ✅ Corrosion-Resistant Coating – Treated black oxide finish delays rust formation during installation and storage.
• ✅ Standard Length – 8-inch nipple length ideal for bridging components or spacing systems in tight layouts.

Technical Specifications

• Nominal Size: 1 inch
• Length: 8 inches
• Material: Welded black steel (Schedule 40)
• Thread Type: ANSI/ASME B1.20.1 NPT (tapered)
• Application: Non-potable fluid, gas, and air systems

Installation Recommendations

Install using standard pipe wrenches with appropriate thread sealants such as PTFE tape or anaerobic compound to prevent leakage. This product is not intended for potable water systems. For systems involving natural gas or other regulated applications, verify local code compliance and pressure limitations.

Common Applications

This steel nipple is widely used in:

• Natural gas and propane piping systems
• Oil transfer and compressor lines
• Closed-loop hydronic heating loops
• HVAC supply and return branches
• Commercial mechanical systems requiring threaded fittings

Did You Know?

Black steel pipe nipples are preferred in gas distribution networks because their thicker wall and finish help resist internal pressure fatigue and external corrosion in concealed or controlled environments.

Choose the 1" x 8" Black Steel Nipple for critical piping installations where performance, pressure retention, and threaded reliability are essential. Manufactured to industry benchmarks, this fitting supports efficient, code-compliant work in demanding jobsite conditions.