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Proportional spool valve
                                                                                     Proportional spool valve                                                                                                     Proportional spool valve


       DIMENSIONS                                                                                                                  Proportional spool valve with additional hand
       4/2-way spool valve                                 4/3-way spool valve                                                     lever actuation                                      NG6
                                     9.5                                                                                                                                                ISO 4401-03
                                                                                                                                   Flange construction
           110                       5.2                                                                                            ◆  Q  = 35 l/min                                    x II 2 G Ex db IIC
                                                                                                                                       max
                                      MD= 5.2Nm                                                                                     ◆  4 volume flow levels                             x II 2 D Ex tD A21 IP65
         93.8                          7                                                                                            ◆  Q N max  = 25 l/min                              x I M2 Ex db I Mb
                                                                                                                                      p  = 350 bar
                                                                                                                                    ◆
                                                                                                                                                                                        Class I Division 1
                                                 45   46                                                                               max                                              Class I Zone 1
                                       39
            23
                                                                   10
          12  17 18  10  18      70            40                                 269.6
       MD=9Nm                                    MD=50Nm

                        60         10.8         7.6                                                                                DESCRIPTION                                          SYMBOL
                      100.8          68         18.4                                                                               Proportional spool valve according to data sheet 1.10-88 with addi-  Overview spool types see data sheet 1.10-88




                             187.2                                                                                                 tional hand lever actuation.
       Dimensions  of  the  solenoid  coil,  refer  to  data  sheet  1.1-183  and                                                  Note!    The standard valve cannot be retrofitted.
       1.1-184
                                                                                                                                                                                                     A   B
       HYDRAULIC CONNECTION                                PARTS LIST                                                                                                                            a     0    b
                                                             Position Article  Description                                                                                                a          P   T          b
                                 17.8
                                                                 10 263.6...  Solenoid coil MK.45 / 18 x 60
                            T
                                                                 12 154.2201  Knurled nut Ex M18 x 1,5 x 30                        TYPE CODE
                        A       B                                17 160.2251  O-ring ID 25,07 x 2,62 (NBR)
                    31                     21    32.5                                                                                                                                                   WD  B  F  A06  -            Z568  #  2
                                                                 18 160.2170  O-ring ID 17,17 x 1,78 (NBR)                          Spool valve, direct operated
                            P
                                                                 40 239.2214  Socket head screw M20 x 1
                          21.5                                   70 160.2093  O-ring ID 9,25 x 1,78 (NBR)                           Proportional, explosion proof execution Ex d
                            40.5                                                                                                    Flange construction
                                                                    160.8092  O-ring ID 9,25 x 1,78 (FKM)
                                                                110 111.1080  Cable gland M20 x 1,5                                 International standard interface ISO NG6

                                                                                                                                    Other type designation according to type code data sheet 1.10-88
                                                                                                                                    Hand lever

       INSTALLATION NOTES                                  ACCESSORIES                                                              Design index (subject to change)
                                                                                                                                    1.10-89
       Mounting type      Flange mounting                   Technical explanations        Data sheet 1.0-100
                          4 fixing holes for                Filtration                    Data sheet 1.0-50
                          socket head screws M5 x 45        Relative duty factor          Data sheet 1.1-430                       DIMENSIONS                                           GENERAL SPECIFICATIONS
       Mounting position  Any, preferably horizontal                                                                                                                                     Weight             WDBFA06 +1,0 kg
       Tightening torque  Fixing screws M  = 5,2 Nm                                                                                                                                     Note!    Further specifications, see data sheet 1.10-88
                                      D
                          (screw quality A4)
                          M  = 9 Nm knurled nut
                            D
       Note!   The length of the fixing screw depends on the base
               material of the connection element.
                                                                                                                                                                                  256.5
                                                                                                                                                                                        SURFACE TREATMENT
       Attention!  For stack assembly please observe the remarks in the
               operating instructions                                                                                                                                                    ◆  The flange, the housing and the lever are zinc-nickel coated




                                                                                                                                                    44.4
                                                                                                                                                167.9                123.5
                                                                                                                                                         291.4

                                                           Wandfluh AG  Postfach  CH-3714 Frutigen                                                                                      Wandfluh AG  Postfach  CH-3714 Frutigen
                                                           Tel. +41 33 672 72 72  Fax +41 33 672 72 12  [email protected]                                                              Tel. +41 33 672 72 72  Fax +41 33 672 72 12  [email protected]

                        www.wandfluh.com  Illustrations are not binding  Data subject to change  6/6  Edition: 21 18  1.10-88S E                      www.wandfluh.com  Illustrations are not binding  Data subject to change  1/1  Edition: 19 38  1.10-89 E
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