Valves series A1 1/4”, 3/2, electrically operated 2 Version Symbol Code Item 3/2 NC 2 3/2 NA 12 10 034025 A1E230 31 2 23 12 034040 A1E231 13 Version Symbol Code Item 3/2 12 2 10 034024 A1E232 solenoid/solenoid 31 2.70.2