Nibco B072800 Cast Copper 90 Union Elbow 1/2 in C X M

Product Description

The NIBCO B072800 is a cast copper 90-degree union elbow designed for use in pressure piping systems. It provides a directional change of 90 degrees while incorporating a union connection that allows the fitting to be disassembled without cutting the pipe. The C x M end configuration means one end accepts a sweat (copper) connection and the other end features a male threaded outlet. This fitting is used by licensed plumbers and HVAC technicians in residential and light commercial piping applications where serviceability and leak-free performance are required. It meets ASTM B584 and ISO standards for cast copper fittings.

This fitting is suited for 1/2-inch copper pipe installations in domestic water supply, hydronic heating systems, and other pressure piping applications. The union design makes it a practical choice in tight service locations where a pipe section may need to be removed or replaced without disturbing surrounding connections. It is typically installed by a licensed plumber or pipefitter during new construction or retrofit work.

Key Features

• 90-degree union elbow allows directional change and in-line disassembly without pipe cutting
• Cast copper construction for durability and compatibility with copper piping systems
• C x M end connection — one sweat inlet, one male threaded outlet
• Pressure fitting rated for use in standard pressure piping systems
• Meets ASTM B584 and ISO standards for cast copper fittings

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1/2-inch copper pressure piping systems using sweat and male threaded connections.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off and depressurize the supply line and drain the affected section before beginning work. The sweat end requires proper flux application, clean tube ends, and a propane or MAP-gas torch for soldering; do not overheat the union components. Hand-tighten the male threaded connection with an appropriate thread sealant or tape before final tightening with a pipe wrench.