1/8" Air Vent Key

Product Overview

The Legend Valve 110-338 Air Vent Valve Key is a precision-fabricated brass component engineered for air release applications in hydronic and plumbing systems. Designed for professional use, this valve offers reliable venting performance and compatibility with standard 1/8-inch MNPT connections. Its compact profile allows for installation in confined mechanical assemblies while maintaining full pressure and temperature integrity.

Technical Specifications

• Model: 110-338
• Manufacturer: Legend Valve
• Type: Air Vent Valve Key
• Nominal Size: 1/8 inch
• Connection Type: MNPT (Male National Pipe Thread)
• Material: Brass
• Working Pressure: 125 PSI
• Temperature Rating: 200°F (93°C)
• Width: 0.57 inch
• Height: 1.08 inch
• Application: Hydronic systems, air elimination, system maintenance and service venting
• Compliance: Lead-Free per SDWA and NSF/ANSI standards

Professional Notes

Install in accordance with system design specifications for air removal or venting. Ensure compatibility with system pressure and temperature limits. Thread sealant or PTFE tape should be applied to MNPT threads as required for leak-free performance. The compact form factor is suitable for manifold, radiator, and terminal unit applications where access space is limited.

Summary

The Legend Valve 110-338 Air Vent Valve Key is a 1/8-inch MNPT brass venting component rated for 125 PSI and 200°F service. It is built for professional-grade hydronic and plumbing system installations where precise air release and dependable operation are required.