• Designed for use on boiler feed lines to provide make-up water to the boiler and prevent backflow when supply pressure fails below system pressure.

• Pre-assembled for ease of installation

• Easy service accessibility

• High capacity fill valve for quick system filling and purging

• Maximum Temperature: 212F

• Maximum Working Pressure: 100 psi

• Adjustable Range: 10-25 psi, set at 15 psi