1-1/2 inch Black Iron 90 Degree Street Elbow Female x Male

1-1/2 inch Black Malleable Iron 90° Street Elbow – Threaded Fitting for Pressure Systems

The 1-1/2 inch black malleable iron 90-degree street elbow is engineered for applications requiring directional changes in threaded piping systems. With one male and one female NPT end, this fitting allows for a compact connection between pipes and is ideal for areas with limited space or irregular geometry.

Manufactured to meet ASTM and ASME standards, this fitting is commonly used in steam, gas, air, and oil applications. The street elbow configuration enables direct connection to a female-threaded fitting without the need for an additional nipple, reducing the number of components and potential leak points in the system.

Key Performance Features

• ✅ Material: Malleable cast iron for high tensile strength and impact resistance.
• ✅ Threaded Ends: Male x Female NPT (National Pipe Taper) threads conforming to ASME B1.20.1 for secure, leak-resistant connections.
• ✅ 90-Degree Sweep: Facilitates changes in piping direction with a compact, form-fitting profile.
• ✅ Black Finish: Ideal for non-potable applications; suitable for natural gas and hydronic heating systems.
• ✅ Pressure Rating: Designed for use in systems rated up to 150 PSI for steam and 300 PSI for water, air, or oil (depending on system configuration).

Specifications

• Nominal Size: 1-1/2 inch
• Material Standard: ASTM A197/A197M – malleable iron castings
• Thread Standard: ASME B1.20.1 (NPT)
• End Connections: MPT x FPT (Male Pipe Thread x Female Pipe Thread)
• Finish: Black oxide coating

Applications

This street elbow is frequently used in:

• Natural gas distribution lines
• Steam and hydronic heating systems
• Air compressor and vacuum systems
• Industrial fluid transport lines

Its male-to-female configuration makes it ideal for close-quarter installations and piping offsets where standard elbows are not practical.

Note on Use

This fitting is not intended for use in potable water systems. For such applications, galvanized or alternative materials should be selected per local code requirements.

Installation Guidance

Use approved thread sealants such as PTFE tape or anaerobic compound. Tighten using a pipe wrench while avoiding over-torquing to prevent thread deformation. Always follow local mechanical and plumbing codes when installing pressure-rated fittings.

The 1-1/2 inch black iron 90° street elbow offers a rugged, code-compliant solution for demanding pipe routing applications. Designed with precise threading and strong material integrity, it supports clean, secure, and efficient installations in both residential and commercial systems.