1. Pilot-oriented made: Optional for internal or external, structure in sliding column made: Good tightness and sensitive reaction;
2. Three position solenoid valves have three kinds of central function for your choice, double control solenoid valves have memory function;
3. Internal hole adopts special processing technology which has little attrition, low start pressure and long service life, no need to add oil for lubrication;
4. It is available to form integrated valve group with the base to save installation space, additional manual devices are equipped to facilitate installation and debugging;
5. Several standard voltage grades are ooptional;