4.1.1 “ECO-BALL” ball valve The "Eco-ball" valve consists of a sphere contained inside the tube that connects the tub to the filter body. Its purpose is to keep the washing water (contained in the tub) separate from the water in the drain circuit. Advantages with respect to a conventional circuit : ѓ Energy savings: the water inside the drain circuit is not heated. ѓ The detergent does not deposit on the filter body, thus improving the quality of the wash (reduction in mechanical detergent losses). ѓ Better rinsing efficiency 4.1.1.1 Ball valve:
operating principle ѓ During the water fill and washing phases, the sphere is raised by the water contained in the drain circuit to the uppermost position, thus preventing water from passing between the tub and the filter body. ѓ During the drain phases, the suction effect created by the operation of the pump causes the sphere to move downwards, thus allowing the water to flow through the drain circuit. SOI/DT 2006-03 dmm 20/70 599 37 67-82