See all products of Spare parts for zone/diverter ball valves Spare actuators for motorised three-way valves 638 series. Spare motor for two-way motorised ball valves, “L” drilling version, 638 series. Spare actuator for motorised ball zone valves 6452 and 6453 series. 3-contact control spare actuator for motorised ball zone valves 6445 series. 3-contact control spare actuator for motorised ball zone valve 6443 series.