MVI21.20 was Electromotoric 2-port zone valves, AC 230 V, 2-position control signal, auxiliary switch, PN16, DN20, kvs = 4 m3/h, dpmax = 175 kPa

Key data to replacement product: 2-port valve PN16, DN20, kvs = 3.5 m3/h, dpmax = 100 kPa.

Info: Requires electromotoric actuator SFA71/18 and auxiliary switch ASC2.1/18. For the Asia-Pacific region the electromotoric 2-port zone valves MVI421.20 could be an option