Nibco B495056 Cast Copper Companion Pipe Flange 3/4 in

Product Description

The NIBCO B495056 is a cast copper companion pipe flange designed for 3/4 inch pipe with an outer diameter of 3-7/8 inches. It carries a 150 psi pressure rating and features a C-style end connection, making it suitable for soldered copper piping systems. The flange bolt hole centers are spaced 2-3/4 inches apart. This fitting is used by licensed plumbers and pipefitters in both residential and light commercial hydronic and water distribution systems where a secure, corrosion-resistant flanged connection is required at equipment or valve termination points.

This companion flange is applied where a copper piping run must terminate at a flanged connection point, such as at pumps, valves, or mechanical equipment in closed-loop hydronic heating systems, domestic water systems, and similar plumbing installations. The cast copper construction and ASTM B584 compliance make it appropriate for potable water and hydronic applications. Its 150 psi Class rating suits standard residential and light commercial system pressures. The companion design means it pairs with a mating flange to form a bolted joint rather than functioning as a standalone shutoff or directional fitting.

Key Features

• Cast copper construction meets ASTM B584 for reliable performance in potable water and hydronic systems
• 150 psi Class pressure rating suitable for standard residential and light commercial plumbing
• C-style end connection accepts standard sweat solder installation
• 3/4 inch pipe size with 3-7/8 inch outer diameter
• Bolt hole centers at 2-3/4 inches for consistent flange alignment
• Companion flange style pairs with a mating flange for bolted joint assembly

Compatibility

Designed as an OEM-style replacement or new-installation companion flange for 3/4 inch copper pipe systems rated at 150 psi Class, using a C-style sweat end connection conforming to ASTM B584 standards.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC requirements. Shut off and depressurize the water or hydronic system fully before cutting into the piping and soldering the flange end connection. Use appropriate flux and lead-free solder for potable water applications. Torque flange bolts evenly in a cross pattern to ensure a uniform gasket seal at the mating flange face.