Legend Valve 313-154 Compression Union 3/4 Inch

Product Description

The LEGEND VALVE 313-154 is a 3/4-inch compression union fitting designed to join two lengths of tubing without soldering or threading. It creates a secure, leak-resistant connection using compression ferrules and a threaded nut on each end. This type of fitting is commonly found in potable water supply lines, hydronic heating systems, and general plumbing distribution piping. Licensed plumbers and experienced service technicians install compression unions during repairs, extensions, or reroutes where heat or a torch cannot be used safely.

This fitting is suited for residential and light commercial plumbing applications where a removable, tool-serviceable connection is needed. Compression unions are a standard choice when working with copper tubing in tight spaces or retrofit situations. The union design allows the joint to be disconnected and reassembled without cutting the line, making it practical for service access points in water supply systems.

Key Features

• 3/4-inch compression connection on both ends for standard tubing fitment
• Union design allows the joint to be broken and remade without cutting tubing
• No soldering or threading required for installation
• Suitable for use in potable water and hydronic plumbing systems
• Compact body for use in confined or retrofit installation areas

Compatibility

Designed as an OEM-style replacement and standard-fit compression union for 3/4-inch tubing in residential and light commercial plumbing systems.

Installation Notes

Installation is performed by a licensed plumber or qualified pipefitter. Shut off the water supply and relieve system pressure before beginning work. Ensure tubing ends are cut square, deburred, and free of debris before seating the ferrule. Do not overtighten the compression nut, as this can deform the ferrule and cause leaks; follow standard compression fitting assembly practices per applicable IPC guidelines.

Technical Specifications

• Connection Size: 3/4 inches
• Connection Type: Compression union
• UPC: 662545023243

Standard Information

• Brand: LEGEND VALVE
• Manufacturer Part Number: 313-154