vaso expansion caldera vaillant 181057 interruptor puerta lavavajillas F155481 869991554810 HSIO 3T235 WCE

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vaso expansion caldera vaillant 181057 interruptor puerta lavavajillas F155481 869991554810 HSIO 3T235 WCEThe expansion vessel is a key component in boilers that allows absorption of pressure variations caused by the expansion of hot water in the heating circuit. This Vaillant 181057 model, with a capacity of 10 liters and a maximum pressure of 3 bar, is designed to maintain stable internal pressure and prevent damage to the boiler and pipes. What problem does this replacement part solve? Unstable or fluctuating pressure in the boiler during operation.