tornillo llave carga caldera vaillant llave HCA858450A

HCA858450A

with a wall thickness of 0

1 mm) Enclosure PC+ABS UL94 V-0 plastic resin housing Display range NTC probe: -50

B    RIVELIA FEB4455

tornillo llave carga caldera vaillant llave HCA858450AThis loading valve screw is a pin designed to secure and facilitate the opening and closing of the water loading system in Vaillant boilers. It allows safe handling during maintenance or recharging of the boiler's hydraulic circuit, ensuring tightness and proper operation of the device. What problem does this replacement part solve? Difficulty opening or closing the boiler's loading valve Leaks or pressure loss due to improper pin adjustment Wear or