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Proportional spool valve
                                                                                           Proportional spool valve


            FACTORY SETTINGS
            Dither set for optimum hysteresis                    Dither set for optimum hysteresis
            ◆ = Deadband: Both solenoids switched off            ◆ = Deadband: Both solenoids switched off
            at command value signal -2%… 2%                      at command value signal -2%… 2%
            ● = Opening pressure at command value signal + / - 4%  ● = Opening pressure at command value signal + / - 4%
            ■ = Flow at ∆p = 10 bar over two control edges + / - 70% command   ■ = Flow at ∆p = 10 bar over two control edges + / - 70% command
            value signal                                         value signal
                                Type: ACB-S                                          Type: ADB-V
             15,0 l/min  at nominal volume flow rate Q  32 l/min  20,5 l/min  at nominal volume flow rate Q  40 l/min
                                           N                                                    N
             9,4 l/min  at nominal volume flow rate Q  16 l/min   16,5 l/min  at nominal volume flow rate Q  32 l/min
                                           N                                                    N
             4,4 l/min  at nominal volume flow rate Q  10 l/min   10,5 l/min  at nominal volume flow rate Q  16 l/min
                                           N                                                    N
             2,7 l/min  at nominal volume flow rate Q   5 l/min   5,5 l/min  at nominal volume flow rate Q  10 l/min
                                           N                                                    N
                                                                  3,0 l/min  at nominal volume flow rate Q   5 l/min
                                                                                                N

            DIMENSIONS                                           HYDRAULIC CONNECTION
            With analog interface, 12 pole connector
            Amplifier and controller                                                       17.8
                   25,30    20,21  40                                                 T

                            X2                                                    A        B
                                                                              31                      21    32.5
                        **      *                    MD= 5.2Nm
                       X1      X1
                                                                                      P
                       X4 ***
               111.4                           9.5    8                             21.5   40.5
                                                                        79
                45                             5.2                49
                                                     41
                     65                  50                    60
                      MD= 5.2Nm                                 MD= 5.2Nm
                   10        107.5           68
                                        254.7
            * For amplifier
            ** For controller
            *** Only controller
            With analog interface, 7 pole connector  With fieldbus interface    With fieldbus interface
            Amplifier and controller          Amplifier                         Controller


                          X2                                                                   X2
                                                                                          X1
                                                                 X2
                     X1 **   X1 *
                                                           X1                             X3
               129.4   X4 ***                              X3                      129.4   X4
                                                 111.4


                45                                45                                45


                    6.1                                   5.2                            5.2













                               www.wandfluh.com  Illustrations are not binding  Data subject to change  5/6  Edition: 18 12  1.10-82 E
                                                                                                            Page 379
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