3/4 inch x 7 inch Black Steel Nipple

3/4" x 7" Black Steel Pipe Nipple – Threaded Connector for Pressure Applications

The 3/4" x 7" Black Steel Nipple is designed to join sections of pipe or extend piping in gas, oil, steam, or air systems where dependable connections are critical. Fabricated from schedule 40 black steel pipe, this nipple delivers high mechanical strength, temperature resistance, and compatibility with threaded fittings across a wide range of industrial and commercial installations.

Precision-cut NPT threads on both ends provide a secure, leak-resistant seal that aligns with ANSI/ASME B1.20.1 standards. Manufactured to meet ASTM A53 specifications, this fitting is engineered for general-purpose use where a corrosion-resistant coating is not required.

Performance Advantages

• ✅ Threaded End Connections: Machined to NPT standards for compatibility with steel pipe and malleable iron fittings.
• ✅ Schedule 40 Wall Thickness: Suitable for standard pressure ratings and HVAC or fuel gas piping systems.
• ✅ Carbon Steel Construction: Provides structural integrity for load-bearing and high-temperature environments.

Applications

The 3/4" x 7" black steel nipple is commonly used in:

• Natural gas and propane distribution systems
• Compressed air and vacuum lines
• Oil and hydraulic piping installations
• Fire protection, steam, or low-pressure water systems (non-potable)

Installation Guidelines

This nipple should be installed using compatible threaded fittings. Apply thread sealant or PTFE tape to male threads to ensure a tight seal. Proper torque and alignment are essential to avoid joint failure or thread stripping. For systems under pressure or code inspection, follow all relevant building codes and standards.

Specifications

• Nominal Pipe Size: 3/4 inch
• Length: 7 inches
• Material: Schedule 40 Black Steel (ASTM A53)
• Connection: NPT Threaded Male x Male
• Finish: Black (uncoated)

Note on Material Usage

Black steel fittings are not intended for use in potable water systems due to the absence of corrosion-resistant coatings. For drinking water applications, galvanized or lead-free brass alternatives are recommended.

Use the 3/4" x 7" Black Steel Nipple where dependable threaded piping connections are required for gas or mechanical systems. Trusted by professionals for its strength and dimensional consistency, this fitting helps ensure code-compliant and performance-driven installations.