Mueller Streamline W 01023 Reducing Coupling 1/2x3/8 in

Product Description

The MUELLER STREAMLINE w 01023 is a reducing coupling fitting with a C x C (copper-to-copper) solder-joint connection, sized at 1/2 inch by 3/8 inch. It is used in pressurized copper supply systems where a line reduction between two different tube diameters is required. The fitting accepts standard copper tubing on both ends and is joined using a sweat-solder process. Plumbers and pipefitters install this fitting in residential and light commercial plumbing, HVAC refrigerant lines, and potable water distribution systems where a step-down in pipe diameter is needed at a junction point.

This reducing coupling is suited for supply and pressurized piping systems in both residential and commercial construction. It is used where a 1/2-inch copper line must transition down to a 3/8-inch copper line, such as at fixture supply drops, branch take-offs, or equipment connection points. The C x C end configuration means both ends receive copper tubing that is soldered in place, making it compatible with standard sweat-joint copper plumbing assemblies.

Key Features

• C x C solder-joint ends accept standard copper tubing on both sides
• Reducing configuration transitions a 1/2-inch line to a 3/8-inch line
• Designed for pressurized supply systems including potable water and HVAC applications
• Wrot copper construction provides consistent wall thickness and reliable joint integrity
• Compatible with standard lead-free solder and flux per current plumbing code requirements

Compatibility

Designed as an OEM-style replacement or new-installation fitting for residential and commercial copper solder-joint supply and pressurized piping systems using standard copper tubing.

Installation Notes

Installation is performed by a licensed plumber or pipefitter using standard sweat-soldering tools including a torch, lead-free solder, and appropriate flux. Shut off and depressurize the supply line and drain any standing water from the pipe before cutting and fitting. All joints must be clean, deburred, and properly fluxed before soldering. Follow local plumbing codes and ASTM B88 tubing standards for copper sweat-joint installations.