American Granby sn25lnl Air Valve 1/4 Inch Long Light Spring

Product Description

The American Granby sn25lnl is a 1/4-inch Schrader-style air valve designed for controlled air release and pressure relief in fluid-handling systems. Built with a long-body configuration and a light-tension spring, this valve opens at lower differential pressures than standard-spring models, making it well suited for low-pressure air venting applications. HVAC technicians, plumbers, and irrigation system installers commonly work with this type of valve when managing trapped air in hydronic loops, water lines, and similar piping assemblies.

This valve is appropriate for residential and light commercial installations where a 1/4-inch threaded connection point is present and a reliable, low-resistance air-release path is needed. The long-body design provides additional thread engagement and ease of access in tight installations. It is a serviceable replacement component for systems that rely on Schrader-type air valves to maintain system pressure integrity and prevent airlock conditions.

Key Features

• Long-body Schrader-style valve for extended thread engagement and easier access in confined spaces
• Light spring tension allows air release at lower differential pressures compared to standard-spring valves
• 1/4-inch connection size fits standard air valve ports on hydronic and plumbing systems
• Compact design suited for replacement or retrofit in existing valve ports

Compatibility

Designed as an OEM-style replacement Schrader air valve for residential and light commercial hydronic, plumbing, and irrigation systems equipped with standard 1/4-inch air valve ports.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician following applicable IPC and IFGC guidelines. Depressurize and isolate the system before removing the existing valve or installing this replacement. Use appropriate thread sealant on the valve threads and verify the connection is wrench-tight without over-torquing. Confirm there are no leaks at the valve seat before returning the system to service.

Technical Specifications

• Connection Size: 1/4 inch
• Valve Type: Schrader Air Valve
• Body Length: Long
• Spring Tension: Light

Standard Information

• Brand: American Granby
• Manufacturer Part Number: sn25lnl