Automatic boiler water replenishment: It monitors the boiler water level and automatically adds water when the level is low, immediately stopping when the standard level is reached. This maintains a constant water volume in the boiler, avoiding dry burn risks, while ensuring stable hot water and steam supply. Prevention of cold and hot water crossflow: By using a sealed valve core to separate cold water, hot water, and steam pipes, it prevents crossflow of liquid, avoids hot water backflow that could damage cold water components, and ensures dry, steam-only output for denser milk froth. Compatibility with multi-mode intelligent operation: It responds to full-automatic and semi-automatic coffee machine mode commands, switching between espresso extraction, manual brewing, and steam milk frothing modes. This enables one-touch operation without manually controlling the water circuit, reducing operational difficulty and enhancing user convenience. 1PC 220V-240V 3/4''12mm Dishwasher Water Inlet Valve Solenoid Valve Water Inlet Valve For Ice Machine Coffee Machine, Manufacturer: GENTERUN