Legend Valve 111-E Hydronic Tee Brass Compression Fitting

Product Description

The LEGEND VALVE 111-E is a brass compression tee fitting designed for branching and distributing 1/2 inch OD tubing in hydronic systems. With a 3/8 inch nominal size and compression-style connection, it creates reliable, leak-resistant joints without soldering or special tooling. The brass construction resists corrosion and holds up under elevated system temperatures typical of boiler and hydronic installations. Licensed plumbers and HVAC technicians install this fitting where precise small-diameter circuit routing is required in boiler rooms, mechanical rooms, and related hydronic control applications.

This tee is suited for residential and light commercial hydronic systems where 1/2 inch OD tubing is routed through control lines, condensate drain paths, auxiliary sensing circuits, or zone valve instrumentation. Its compression design allows for clean, serviceable connections that can be accessed and re-made in the field without damaging the tubing or surrounding components. It is a practical solution for any installation requiring a durable, low-profile branch connection in a compact hydronic circuit.

Key Features

• Compression fitting style — no soldering required for installation or re-make
• 3/8 inch nominal size for 1/2 inch OD tubing
• Brass construction resists corrosion in high-temperature hydronic environments
• Tee configuration supports branching and flow distribution in small-diameter circuits
• Serviceable connection suitable for boiler rooms and mechanical room installations

Compatibility

Designed as an OEM-style replacement or new-installation compression tee for hydronic systems using 1/2 inch OD tubing, including control lines, zone valve instrumentation, and auxiliary sensing circuits.

Installation Notes

Installation is performed by a licensed plumber or qualified HVAC technician. Shut down the hydronic system and relieve system pressure before removing or installing any compression fitting. Hand-tighten the compression nut first, then apply a quarter to half turn with a wrench — do not overtighten, as this can deform the ferrule and compromise the seal. Follow all applicable local plumbing codes and IPC guidelines for hydronic piping connections.

Technical Specifications

• Nominal Size: 3/8 inch
• Tubing OD: 1/2 inch
• Connection Type: Compression
• Configuration: Tee
• Material: Brass

Standard Information

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