Mueller Streamline W 08001 Copper Union C X C 1/4 in

Product Description

The MUELLER STREAMLINE W 08001 is a wrot copper solder-joint union fitting designed for supply and pressurized plumbing systems. It features a C x C (cup by cup) connection configuration in a 1/4 inch nominal size with a 3/8 inch outside diameter, and is rated to 700 psi. This union allows a section of copper tubing to be disconnected without cutting the line, making it a practical choice for service access points in residential and light commercial piping systems. Licensed plumbers and pipefitters install this fitting using standard lead-free solder and flux in accordance with applicable plumbing codes.

This fitting is suited for potable water supply lines, hydronic heating systems, and other pressurized copper tubing applications where a serviceable union connection is required. Its wrot copper construction ensures consistent wall thickness and a reliable solder joint. The compact 1/4 inch nominal size makes it appropriate for low-flow branch lines, instrumentation connections, and refrigeration-adjacent plumbing applications where small-diameter copper is standard.

Key Features

• Wrot copper construction for consistent density and reliable solder joints
• C x C end connections accept standard copper tubing for soldered assembly
• 700 psi pressure rating suitable for pressurized supply systems
• 1/4 inch nominal size with 3/8 inch outside diameter
• Union design allows in-line disconnection without cutting tubing
• Domestic manufacture

Compatibility

Designed for use with standard 1/4 inch nominal copper tubing in solder-joint pressurized plumbing systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and ASTM B88 tubing standards. Shut off the water supply and relieve system pressure before beginning work. Clean and flux all mating surfaces thoroughly before applying heat; avoid overheating wrot copper fittings, as excessive heat can damage the fitting and compromise joint integrity. Verify that all solder used meets lead-free requirements per applicable codes for potable water systems.

Technical Specifications

• Nominal Size: 1/4 inch
• Outside Diameter: 3/8 inch
• Connection Type: C x C (Cup x Cup) solder joint
• Pressure Rating: 700 psi
• Material: Wrot Copper
• Country of Origin: Domestic

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: W 08001