553642A | Autofill 1/2"NPT Inlet | Caleffi Product Type_Extension for Outdoor HMI Upgrade your fan control system

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553642A | Autofill 1/2"NPT Inlet | Caleffi Product Type_Extension for Outdoor HMI Upgrade your fan control systemThe Caleffi 553642A Autofill Valve is an automatic water fill valve designed to maintain water pressure in sealed heating systems. Its 1 2" NPT inlet allows for easy connection to the system, ensuring reliable water supply and system pressure. With its robust construction, it can withstand the demands of industrial and commercial heating applications, providing long lasting performance. **Key Features and Benefits:** * Automatic water fill valve