Brkert 6213ev standard solenoid diaphragm valves servo assisted 22 way burkert 221609 this standard solenoid valve has an orifice dimension of 10mm and a kv of 19msup3h the 22 way valve features a servo assisted spring coupled diaphragm that supports valve opening and closing suitable for use with neutral fluids water hydraulic oil and oil without additives brkert 221 609 solenoid valve 230v 50hz g12 10mm 19mh polyamide coil