Legend Valve 111-A Hydronic Brass Compression Tee 1/4 Inch Od

Product Description

The LEGEND VALVE 111-A is a brass compression tee designed for branching small-diameter boiler control tubing. It carries a 1/8 inch nominal pipe size with 1/4 inch OD compression outlets, making it well suited for pressure switch lines, gauge connections, pilot assemblies, and low-volume sensing circuits. The all-brass construction handles the elevated temperatures common in hydronic and boiler trim environments. Compression-style outlets deliver leak-tight connections without soldering or brazing, reducing service time and eliminating the need for an open flame in tight control-panel spaces. Licensed plumbers and boiler technicians are the primary installers.

This tee fits into hydronic system control trim where small-diameter tubing must be split or branched to serve multiple sensing or signaling points. Typical applications include residential and light commercial boiler installations where pressure gauges, low-water cutoffs, and pressure switches share a common port or supply line. The compact form factor allows installation in confined boiler-trim locations where larger fittings would not seat properly.

Key Features

• 1/8 inch nominal pipe size with 1/4 inch OD compression outlets for precise small-bore branching
• Brass construction resists corrosion and tolerates elevated hydronic system temperatures
• Compression fitting design eliminates soldering and open-flame requirements at the connection points
• Leak-tight seal supports accurate pressure communication in sensing and signaling circuits
• Compact tee geometry fits confined boiler-trim and control-panel spaces

Compatibility

Designed as an OEM-style replacement or service fitting for residential and light commercial hydronic boiler control systems utilizing 1/4 inch OD small-diameter control tubing.

Installation Notes

Installation is performed by a licensed plumber or qualified boiler technician. Before servicing any boiler control circuit, shut off the boiler and relieve system pressure at the appropriate isolation point. Compression fittings must be tightened by hand first, then snugged with a wrench — do not overtighten, as brass compression sleeves can deform and cause leaks. Work should comply with applicable local plumbing codes and the International Fuel Gas Code where natural gas or LP appliances are involved.

Technical Specifications

• Nominal Pipe Size: 1/8 inch
• Outlet OD: 1/4 inch
• Connection Type: Compression
• Material: Brass
• Configuration: Tee

Standard Information

• Brand: LEGEND VALVE
• Manufacturer Part Number: 111-A