RV series directional solenoid valve, port size ranges from 1/8” to 1/2”. Mould of pilot seat is made by top-level supplier, ensuring precision uniformity between plastic and metal parts; Spool of the solenoid valve is cutted and one-time-machined from superior aluminum alloy rod , by high precision Japan CNC machine; Valve body use 6061-T6 aluminum alloy ,ensuring clean and rigid thread. Special mini filter is designed on pilot exhaust port, ensuring cleaner inner air; Dynamic and static armature made by Japan-imported hybrid machining center at one time with Germany-imported soft magnetic stainless steel material, ensuring high accuracy and rapid magnetizing and demagnetizing, with fastest response speed is 38HZ; Imported seal and grease give this solenoid valve strong guarantee for long time; Integral coating of coil by thermosetting BMC ,ensuring IP65 protection, low temperature rise, longer service life; Personalized appearance design and patented. Specialized Machining + Assembly + Testing automation production streamlines, ensuring high quality stability and consistency of RV series solenoid valve. Single item annual output is 3 Million pieces, with superior cost-performance. Air reset design, 50 Million cycles life cycles with continual 2-year laboratory records.