3/4 inch x 9 inch Black Steel Nipple

3/4" x 9" Black Steel Nipple – Built for High-Strength Pipe Connections

The 3/4" x 9" black steel nipple is a precision-threaded fitting manufactured for use in low-pressure gas, air, and water applications. Made from Schedule 40 black steel, this nipple provides reliable strength and a secure threaded connection suitable for a wide range of residential and commercial piping systems.

Product Benefits

• Rugged Construction: Manufactured from seamless black steel pipe to handle demanding conditions with structural integrity.
• Threaded Ends: NPT threads on both ends ensure compatibility with standard fittings and prevent leaks when installed with appropriate thread sealant.
• Uniform Wall Thickness: Schedule 40 pipe wall provides pressure resistance and durability over time.
• Corrosion-Ready Finish: Black finish offers surface protection against moisture in non-potable applications.

Technical Specifications

• Nominal Size: 3/4 inch
• Length: 9 inches
• Material: Black Steel (ASTM A53 or equivalent)
• Wall Thickness: Schedule 40
• Connection Type: NPT Threaded (Male x Male)
• Application Rating: Suitable for air, gas, and non-potable water systems

Installation Recommendations

Before installation, inspect threads for cleanliness and apply thread sealant or PTFE tape to ensure a watertight or gastight seal. Use a pipe wrench to tighten fittings securely without over-torquing. Compatible with black malleable iron or cast iron threaded fittings. Not recommended for underground or potable water applications unless further treated or coated.

Common Uses

This fitting is commonly found in gas distribution lines, fire protection systems (as per local code), air compressor installations, and heating system piping. It is also suitable for hydronic heating applications when used in accordance with system pressure ratings and applicable standards.

Note on Material Use

Black steel nipples are not suitable for potable water due to the lack of corrosion-resistant internal lining. For domestic water supply, use galvanized or brass alternatives as required by code.

The 3/4" x 9" black steel nipple is an essential component in any mechanical piping system where strength, threaded compatibility, and reliability under pressure are priorities. Designed for ease of integration, it ensures consistent, professional-grade performance in every installation.