Page 90 - PNEUMATIC SYSTEM INSTRUMENT
P. 90

Via  solenoid  with  one

                                       coil

                     Electrical
                                       With two coils working
                    Operation
                                       in the same direction

                                       With two coils working


                                       in opposing direction

                                       Direct acting


                                       Via pneumatic


                                       actuation


                                       Via pressure


                                       compensation


                    Pneumatic          Indirect actuation, piloted

                    Operation           Via pneumatic


                                       actuation of the pilot


                                       valve


                                       Via pneumatic

                                       compensation of the


                                       pilot valve
























                                                           69
   85   86   87   88   89   90   91   92   93   94   95