Description
The Watts FV-4M1 (SKU 0590716) is a 1/4″ automatic air vent engineered for reliable air elimination in hydronic heating and steam distribution systems. Designed to handle demanding operating conditions, this float-type air vent automatically purges trapped air from piping and equipment without manual intervention, helping maintain peak system efficiency and preventing pressure loss, noise, and corrosion associated with air pockets.
Key Features
- Automatic float-operated air venting — no manual purging required
- 1/4″ connection size for easy integration into existing piping
- Maximum operating temperature of 240°F — suitable for high-temperature hydronic and steam applications
- Maximum working pressure of 150 PSI (150#) for robust, dependable performance
- Compact design fits in tight mechanical spaces
- Durable construction built to Watts quality standards
Specifications
- Brand: Watts
- Model: FV-4M1
- SKU: 0590716
- Connection Size: 1/4″
- Maximum Temperature: 240°F
- Maximum Pressure: 150 PSI
- Vent Type: Automatic (Float-Operated)
Applications
- Hydronic heating systems
- Hot water boiler piping
- Steam distribution systems
- Radiant heating loops
- Commercial and residential HVAC hydronic circuits
The Watts FV-4M1 automatic air vent is a trusted solution for HVAC professionals seeking a dependable, low-maintenance component that keeps hydronic and steam systems running at optimal performance. Its high-temperature and high-pressure ratings make it well-suited for a wide range of commercial and residential heating applications.
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