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Automatic filling device by Watts, which is an instrument capable of performing water filling in a heating installation at the selected pressure.
Its use is also necessary for balancing the pressure drop caused by the extraction of air from the circuit through the bleed valves.
It is usually installed at the entry point of the system, between two switches, so that it can be removed without the need to empty the installation.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.