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Proportional spool valve
                                                                                     Proportional spool valve                                                                                                     Proportional spool valve


       DIMENSIONS                                                                                                                  Proportional spool valve with integrated
       4/3-way spool valve (spring centring)                                                                                       electronics                                          NG10
                                   205                                                                                             Flange construction                                  ISO 4401-05
                                  192.6                       6.2
                                                                                                                                    ◆  pilot operated
                                   57.2
                                                                                        38                                          ◆  Q  = 200 l/min
                       A                      B                                                                                     ◆  Q max   = 90 l/min
                                                                                                                                       N max
                             60   20                                                                                                ◆  p  = 350 bar
                                                                                                                                       max



                                                                   146.8                                                           DESCRIPTION                                          APPLICATION
                                                                                                        118.3                      Pilot  operated  proportional  spool  valve  with  4  connections  in   Proportional  spool  valves  are  perfectly  suitable  for  demanding
                                                                                                                                   5-chamber  system  and  integrated  electronics.  Precise  spool  fit,   tasks due to the high resolution, large volume flow and low hystere-
           35                                                                                      69.6                            low leakage, long service life time. Very compact construction with   sis. Pilot operated valves are used where large volume flows have
                                                                                                                                   corresponding low weight. The pilot valve is a proportional sole-  to be controlled. Due to the large flow range and the high stiffness
                                                                                                                                   noid operated pressure reducing valve. The function of the pilot and   of the actuation as a result of the pilot control, these valves are
                                                               29
                                                                                                                                   main valve as well as the interaction of both valves can be found in   suitable for applications where fast acceleration and deceleration
                                                                                                                                   the  hydraulic  diagram.  Proportional  to  the  solenoid  current,  the   processes, high speeds and sensitive motion sequences are requi-
             10      40          30     6.5                                             68                                         spool stroke, the spool opening and the valve volume flow increase.   red. The applications are in the industrial as well as in the mobile
                                      10.5

                                                                                                                                   The  control  takes  place  via  an  analogue  interface  or  a  fieldbus    hydraulics for the smooth control of hydraulic actuations.
                     27            93                                                                                              interface (CANopen, J1939 or Profibus DP). The parameterisation
                                   147                                                                                             takes place by means of the free of cost parameterisation and diag-  Note!  „PASO” is a Windows programm in the flow diagram

       4/2-way spool valve (spring reset)                  HYDRAULIC CONNECTION                                                    nostics software «PASO» or via fieldbus interface. As an option,   style, which enables the intuitive adjustment and storing
                          138.35                                                                                                   these valves are available with integrated controller. As feedback   of all variable parameters. The data remain saved in
                                                                                                                                                                                                 case of a power failure and can also be reproduced and
                                                                                                                                   value  generators  sensors  with  voltage  or  current  output  can  be
                                                                                     93                                                                                                          transferred to other DSVs
                                                                                     70.8                                          connected directly. The available controller structures are optimi -
                       A                                                             54                                            sed for applications with hydraulic actuations.
                                                                                   P
                                                                             X   A     B   Y
                                                                         68    12   T     To   1.5    16.8    46
                                                                                                9.7
                                                                                                                                   SYMBOL
         146.8                                                                      20.8                                           Symmetrical control
                                                                                     48
                                                                                                                                                  BCA-S                             BC1-S                             CA2-S
                                                                                                                                                    A   B                                 A   B                 A   B
                                                           INSTALLATION NOTES                                                                    a    0     b                           a                               b
                                                                                                                                    a                               b     a                                                         b
                                                            Mounting type      Flange mounting
                                                                               4 fixing holes for                                                   P   T                                 P   T                 P   T
                                                                               socket head screws M6 x 40
                               176                          Mounting position  Any, preferably horizontal                          Meter-in control
                                                            Tightening torque  M  = 13.5 Nm ± 10 %, quality min. 10.9                             BDA-V                             BD1-V                             DA2-V
       PARTS LIST                                                               D                                                                   A  B                                  A   B                 A   B
        Position Article  Description                                          M  = 10.5 Nm ± 10 %, quality 8.8:                                      0
                                                                                D
            10 239.7203  Screw plug                                                                                                 a            a         b        b     a            a                                b           b
                                                                               ◆  maximum tank pressure without
            20 246.2146  Socket head screw M5 x 45 DIN 912                                                                                          P  T                                  P   T                 P   T
                                                                                 external connections: 80 bar
            30 160.2120  O-ring ID 12,42 x 1,78 (NBR)                          ◆  maximum tank pressure and
               160.8124  O-ring ID 12,42 x 1,78 (FKM)                            maximum pressure external
            40 160.2076  O-ring ID 7,65 x 1,78 (NBR)                             connections: 35 bar
               160.8076  O-ring ID 7,65 x 1,78 (FKM)       Note!    The length of the fixing screw depends on the base
            60 160.2052  O-ring ID 5,28 x 1,78 (NBR)                material of the connection element.
               160.6052  O-ring ID 5,28 x 1,78 (FKM)

                                                           Wandfluh AG  Postfach  CH-3714 Frutigen
                                                           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  4/4  Edition: 20 08  1.10-3500 E                   www.wandfluh.com  Illustrations are not binding  Data subject to change  1/6  Edition: 18 41  1.10-3510 E
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