Homewerks 520-01-34-12B-Z Dielectric Union 3/4x1/2

Product Description

The HOMEWERKS WORLDWIDE LLC 520-01-34-12B-Z is a lead-free dielectric union designed to join dissimilar pipe materials while preventing galvanic corrosion and electrolysis at the connection point. It transitions from a 3/4-inch female iron pipe thread (FIPT) inlet to a 1/2-inch copper solder joint outlet. Dielectric unions are a code-required fitting type in many jurisdictions wherever copper and ferrous pipe systems meet. Licensed plumbers install these fittings in residential and light commercial water supply systems to protect piping from the electrochemical degradation that occurs when dissimilar metals contact each other in the presence of water.

This union is suited for residential water supply applications where a galvanized steel or black iron line transitions to a copper distribution system. Typical install scenarios include water heater connections, main shutoff transitions, and service entry points where mixed-material piping is present. The 3/4-inch to 1/2-inch reducing configuration accommodates common supply-side pipe sizing changes at these transition points.

Key Features

• Lead-free construction meets Safe Drinking Water Act requirements for potable water service
• Prevents electrolysis and galvanic corrosion at dissimilar-metal pipe joints
• 3/4-inch FIPT inlet threads onto steel, galvanized, or iron pipe
• 1/2-inch copper solder joint outlet connects directly to standard copper tubing
• Reducing union handles common supply-line pipe size transitions in a single fitting

Compatibility

Designed as an OEM-style replacement or new-installation fitting for residential and light commercial water supply systems requiring a transition between threaded iron pipe and copper tubing at 3/4-inch by 1/2-inch sizing.

Installation Notes

Installation is performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local codes. Shut off the water supply and relieve system pressure before beginning work. Thread the FIPT end onto the iron or galvanized pipe with appropriate thread sealant or PTFE tape, then solder the copper outlet end to the copper tubing using standard sweat-soldering technique. Do not over-torque the threaded connection, as the dielectric sleeve inside the union body is not metal and can be damaged by excessive force.

Technical Specifications

• Inlet Connection: 3/4 inches Female Iron Pipe Thread (FIPT)
• Outlet Connection: 1/2 inches Copper Solder Joint
• Lead Free: Yes
• Package Weight: 11.82 pounds
• Package Quantity: 30 per unit of measure

Standard Information

• Brand: HOMEWERKS WORLDWIDE LLC
• Manufacturer Part Number: 520-01-34-12B-Z