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93301240703 RJVL1621 ROSENLEW
WTG86262ES/08 BOSCH
BBH65KITGB/02-05
KIL20A65 KIR18A60 KIV26470FF
F153133 869991531330 HBO 3T21 W X Ariston
vaso expansion caldera viessmann 7831308 junkers/bosch 93301240703 RJVL1621 ROSENLEWThe expansion vessel is an essential component for the proper operation of heating boilers such as the Viessmann Vitopend. Its main function is to absorb the increase in water volume when heated, thus preventing excessive pressure buildup in the closed circuit. This specific model, with a capacity of 6 liters and a 3 8" thread, ensures the stability and safety of the hydraulic system. What problem does this replacement part solve? Excessive pressure
