This standard specifies the terms and definitions, symbols, classification, characteristics, relevant product information, normal use, installation and transportation conditions, structural and performance requirements, tests, etc. of electromagnets for AC integral wet valves. This standard is applicable to electromagnets for various AC integral wet valves using hydraulic oil as the working medium, single-phase AC 50 Hz, voltage up to 220 V control circuits, as the power component of the electromagnetic directional valve.