Legend Valve 110-337 Manual Air Vent 1/8 Inch

Product Description

The LEGEND VALVE 110-337 is a 1/8-inch manual air vent designed to release trapped air from hydronic heating and cooling systems. Trapped air in a closed-loop system causes noise, reduced flow, and heat-transfer loss. This vent gives technicians a reliable, manual means of bleeding air from high points in the system, radiators, baseboard convectors, and similar terminal units. The compact 1/8-inch connection size fits standard service ports and bleed valves found across residential and light-commercial hydronic installations.

The 110-337 is suited for use in hot water heating systems, chilled water loops, and radiant floor circuits where air accumulation is a recurring service issue. It installs at high points in the piping system, at radiator or convector bleed ports, or wherever a manual purge point is needed. Hydronic service technicians and licensed plumbers will encounter this fitting in new-construction and retrofit applications alike.

Key Features

• 1/8-inch connection size fits standard bleed port fittings on radiators, convectors, and manifolds
• Manual operation gives the technician direct control over air-purging without automatic valve components to maintain
• Compact form factor suits tight installation spaces at terminal units and high-point purge ports
• Manufactured in Italy to T-75 product standards

Compatibility

Designed as an OEM-style manual air vent for 1/8-inch bleed ports on hydronic heating and cooling terminal units and piping systems.

Installation Notes

Installation is typically performed by a licensed plumber or hydronic heating technician. Before servicing, shut down the circulator pump and reduce system pressure to a safe working level. Use an appropriate thread sealant rated for hydronic service on the 1/8-inch male threads. Follow applicable plumbing codes, including IPC guidelines, for closed-loop hydronic system service and repair.

Technical Specifications

• Connection Size: 1/8 inch
• Country of Origin: Italy

Standard Information

• Brand: LEGEND VALVE
• Manufacturer Part Number: 110-337