Hailiang HLG15-657-0100 Copper Union 3/4 in C X C

Product Description

The HAILIANG HLG15-657-0100 is a 3/4-inch copper union fitting with a sweat-by-sweat (C x C) connection configuration. Unions allow a section of copper tubing or a component to be disconnected and reconnected without cutting the pipe or unsoldering adjacent joints. This fitting is made from copper and is designed for use in residential and light commercial plumbing systems. Licensed plumbers install this type of fitting wherever future serviceability of a line or component is required. The outside diameter measures 7/8 inches, consistent with standard 3/4-inch copper tubing dimensions.

This union is suited for potable water supply lines, hydronic heating distribution piping, and general plumbing applications where copper is the specified material. The C x C end connections accept standard 3/4-inch copper tubing on both sides and are joined using standard lead-free solder and flux. It is commonly installed at water heaters, circulator pumps, pressure-reducing valves, and other serviceable components in residential and light commercial systems.

Key Features

• Copper construction for corrosion resistance and compatibility with potable water systems
• 3/4-inch C x C sweat connections accept standard copper tubing on both ends
• Union design allows component disconnection without cutting or unsoldering the line
• 7/8-inch outside diameter matches standard 3/4-inch copper tubing OD
• Suitable for residential and light commercial plumbing installations

Compatibility

Designed as an OEM-style replacement or new-installation fitting compatible with standard 3/4-inch copper tubing systems using sweat (C x C) connections.

Installation Notes

Installation is performed by a licensed plumber using standard soldering tools, lead-free solder, and flux in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and fully drain the affected line before cutting or fitting any connections. Ensure all pipe ends are clean, deburred, and properly fluxed before soldering. Do not apply heat to the fitting while water or moisture is present in the line, as this will prevent a proper solder joint from forming.

Technical Specifications

• Material: Copper
• Connection Type: C x C (Sweat)
• Nominal Size: 3/4 inch
• Outside Diameter: 7/8 inch
• Product Type: Union
• Category: Copper Fittings
• UPC: 68326433582

Standard Information

• Brand: HAILIANG
• Manufacturer Part Number: HLG15-657-0100