Caleffi 553642A AutoFill™ Automatic Fast-Filling Boiler Fill Valve, 1/2" NPT X 1/2" NPT w/ Pressure Gauge Tool_Test Pump Run Time All Light Panels:

Run Time All Light Panels: 4/8/12 Hours

Proof Pressure: 450 psi (31 bar)

White-Rodgers: 50M56-289

in the field

Caleffi 553642A AutoFill™ Automatic Fast-Filling Boiler Fill Valve, 1/2" NPT X 1/2" NPT w/ Pressure Gauge Tool_Test Pump Run Time All Light Panels:Caleffi 553642A AutoFill Automatic Fast Filling Boiler Fill Valve, 1 2" NPT X 1 2" NPT w Pressure Gauge The CALEFFI AutoFill is unlike traditional boiler fill valves, AutoFill automatically and quickly fills the system to the preset pressure and shuts off. With the optional pressure gauge the system pressure can be viewed and adjusted as needed, no more guessing. The automatic filling valve is a device consisting of a pressure reducing valve with