1-1/4 inch x 36 inch Black Steel Nipple

1-1/4" x 36" Black Steel Nipple – For Extended Reach and High-Pressure Applications

This 1-1/4" x 36" black steel nipple is manufactured for use in systems requiring long, rigid pipe connections without additional couplings. Threaded on both ends to ANSI/ASME B1.20.1 standards, it facilitates secure, mechanical joints in gas, air, oil, and non-potable water lines.

Constructed from Schedule 40 welded black steel pipe, this fitting delivers consistent wall thickness and thread alignment, making it a dependable choice for pressure piping, boiler systems, and industrial installations where dimensional stability and code compliance are critical.

Technical Performance Characteristics

• ✅ Threaded Ends Precision-machined male NPT threads allow for direct integration into mating fittings or pipe runs.
• ✅ Structural Steel Body Made from carbon steel for tensile strength and thermal tolerance in demanding systems.
• ✅ 36" Length Ideal for extended reach applications or system offsets without the need for unions or multiple short nipples.

Application Versatility

• ✅ Pressure-Rated Use Suitable for low- and medium-pressure gas distribution, compressed air networks, and process piping.
• ✅ Corrosion-Resistant Coating Black oxide finish helps inhibit rust formation in non-potable and interior applications.
• ✅ Code Compatibility Meets requirements for mechanical, HVAC, and industrial gas systems per ASME standards.

Common Installations

Widely used in mechanical rooms, commercial utility runs, and industrial plants. Supports boiler piping, fuel gas service lines, and air compressor systems where long pipe spans must be joined without welding or flanged connections.

Material Application Note

Black steel is not rated for potable water. However, its compressive strength and chemical resistance make it ideal for gas service and other closed-system applications where high mechanical loads and temperature variation are present.

Installation Guidelines

Apply compatible thread sealant or PTFE tape during installation. Torque fittings using appropriate tools to prevent thread deformation. For critical applications, hydrostatic or pneumatic pressure testing is recommended after assembly to verify seal integrity.