Nibco CP41-150-48 Cast Brass Flange 3 Inch Class 150

Product Description

The NIBCO CP41-150-48 is a Class 150 cast brass solder cup flange designed to adapt a solder-end copper connection to a flanged pipe joint. The fitting ships with a solder cup inlet and a flat flange face, allowing a licensed plumber or pipefitter to transition from standard copper tubing to a bolted flange assembly without additional adapters. Sized at 3 inches, it is well suited for commercial and industrial plumbing systems where copper is the specified material and flanged connections are required at equipment tie-ins, valves, or service points. Copper construction provides corrosion resistance and long service life with minimal maintenance.

This flange is used in commercial and light industrial plumbing installations where a copper solder connection must terminate at a Class 150 flanged joint. Typical applications include connecting copper distribution piping to pumps, chillers, water heaters, and other equipment with 150 lb flanged nozzles. The fitting is appropriate for potable water systems, hydronic heating and cooling circuits, and similar service where a reliable transition from copper tubing to a bolted flange is required.

Key Features

• Solder cup inlet for direct sweat connection to standard copper tubing
• Class 150 flat flange face compatible with 150 lb bolted flange assemblies
• 3-inch size for medium-diameter copper piping systems
• Cast brass construction for corrosion resistance and long service life
• Lead-free (LF) designation suitable for potable water applications
• Backed by NIBCO 50-year limited warranty

Compatibility

Designed as an OEM-style solder cup flange for use with 3-inch copper tubing systems requiring a Class 150 flanged termination point.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable plumbing codes, including IPC and local authority requirements. Shut off and drain the system fully before soldering; residual moisture in the pipe will prevent a sound solder joint. Use proper flux and lead-free solder approved for potable water service when sweating the cup connection. Torque flange bolts evenly in a cross pattern using the appropriate gasket and hardware for the mating flange rating.

Technical Specifications

• Size: 3 inches
• Pressure Class: Class 150
• Connection Type: Solder cup inlet, flanged face outlet
• Material: Cast brass
• Lead-Free: Yes (LF designation)
• Warranty: 50-year limited
• UPC: 039923317216

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: CP41-150-48