■Model：255/440i  255/740  255/460i   255/760  255/960  255/964   255/966

●Control mode：Time（440i，740），Volume（460i，760，960，964，966）
●Applications: soften
●Valves system：964 one for down-flow regeneration and one for up-flow

                 966 Double valve working at the same time

●Inlet/Outlet pipe diameter： DN20,DN25
●Maximum Water Capacity of Single Valve：3 m3/h