Caleffi 573002A AutoFill™ Automatic Fast-Filling Boiler Fill Valve, 1/2" FNPT X 1/2" FNPT w/ Backflow Preventer Mini Split • Form: SPDT

• Form: SPDT

Freud 34-122 5/16" Radius Rounding Over Bit

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V8181B1029V8181B1037

Caleffi 573002A AutoFill™ Automatic Fast-Filling Boiler Fill Valve, 1/2" FNPT X 1/2" FNPT w/ Backflow Preventer Mini Split • Form: SPDTCaleffi 573002A AutoFill Automatic Fast Filling Boiler Fill Valve, 1 2" FNPT X 1 2" FNPT w Backflow Preventer 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