Homewerks 520-01-12-12B-Z Dielectric Union 0.5 in Fip X Copper

Product Description

The HOMEWERKS WORLDWIDE LLC 520-01-12-12B-Z is a 1/2-inch dielectric union designed to isolate dissimilar metals in residential and commercial plumbing systems. It connects female iron pipe thread (FIP) on one side to a copper solder joint on the other, preventing electrolytic corrosion and galvanic action at the transition point. Dielectric unions are a code-required fitting in many jurisdictions wherever copper piping meets steel or galvanized pipe. The fitting creates an insulating barrier between the two metals, stopping the electrochemical reaction that accelerates pipe corrosion and eventual joint failure.

This union is used in water supply piping where copper lines connect to galvanized steel, black iron, or other ferrous pipe sections. Typical install scenarios include water heater inlet and outlet connections, main service entry transitions, and any point where a copper distribution system interfaces with a threaded steel supply line. The 1/2-inch size fits standard residential water supply branch lines.

Key Features

• Prevents electrolysis and galvanic corrosion at dissimilar-metal pipe joints
• Female iron pipe thread x copper solder joint end connections for direct transition fitting
• 1/2-inch nominal size suits standard residential branch supply lines
• Union design allows pipe to be disconnected and reconnected without cutting
• Sold as individual unit (each)

Compatibility

Designed as an OEM-style replacement or new-installation dielectric union for 1/2-inch female iron pipe thread to copper solder joint transitions in residential and light commercial plumbing systems.

Installation Notes

Installation is performed by a licensed plumber. Shut off the water supply and relieve system pressure before beginning work. The copper side is soldered using standard sweat-joint technique; the iron pipe side is threaded with appropriate thread sealant or PTFE tape per local code. Local plumbing codes, including the IPC, typically require dielectric unions wherever copper and ferrous piping are joined in a water system.

Technical Specifications

• Nominal Size: 0.5 inches
• Connection Type: Female Iron Pipe Thread x Copper Solder Joint
• Package Quantity: 30 per case (sold as each)
• Weight: 9.24 pounds (case)

Standard Information

• Brand: HOMEWERKS WORLDWIDE LLC
• Manufacturer Part Number: 520-01-12-12B-Z