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P. 410

WDPPU08
                                                                                     Proportional spool valve                                                                                                                   WDPPU10


       DIMENSIONS                                                                                                                  Proportional spool valve
       4/3-way spool valve (spring centred)                                                                                        Screw-in cartridge construction                      7 ⁄8 “-14 UNF
                                           s22                                                                                                                                          Wandfluh standard
                                                                                                                                    ◆  direct operated
                                                                                                                                    ◆  Q  = 28 l/min
                                                                                                                                       max
                        A                                                          A                                                ◆  Q N max  = 18 l/min
                                                                                                                                      p  = 350 bar
                                    B         3/4"-16UNF-2A                                                                            ◆  max
           77                                                       74.8                       B

             37                                 4(B)  3(P)  2(A)      35                                                           DESCRIPTION                                          APPLICATION
                                                             1(T)                                                                  Direct  operated  proportional  spool  valve  in  screw-in  cartridge   Proportional  spool  valves  are  perfectly  suitable  for  demanding
              W =                                                      M =                                                         construction. Precise spool fit, low leakage, long service life time.   tasks due to the high resolution, large volume flow and low hyste-
                                                                                                                                   The volume flow adjustment takes place by a Wandfluh proportio-  resis. The applications are in the industry as well as in the mobile
                                                                                                                                   nal solenoid. The valve works according to the pull-push principle.   hydraulics  for  the  smooth  control  of  hydraulic  actuators.  Some
           20          30       10   40 50    9060 70 100    80 110                                                                With the control of the solenoids, the volume flow direction P to A   examples: control of the rotor blades of wind generators, forestry
       MD= 5Nm                                                                         10                                          or P to B can be selected. Thanks to the optimum spool form, sen -  and earth moving machines, machine tools and paper production
                              97.2                 54.2


                                                                                                                                   sitive movement processes are possible. For the control, Wandfluh   machines, simple position controls, robotics and fan control.

                                     151.4
                                                                                                                                   proportional amplifiers are available (see register 1.13).
             HP                                                                                                                    SYMBOL
               Push                                                                                                                Symmetrical control                                  Meter-in control
               90°     Lock                                                                                                                        ACB-S                                               ADB-V
                    Pull
                14.5                                                                                                                                   2  4                                                2  4
                                                           Attention!                                                                              b    0       a                                      b             a
                                                                    The actuation of the manual override is possible up to a
                                                                    tank pressure of approx. 100 bar. The manual override
                        33.4                                        cannot be retrofitted.                                                             3  1                                                3  1


                                                                                                                                   TYPE CODE
       HYDRAULIC CONNECTION                                PARTS LIST
       Cavity drawing according to Wandfluh standard         Position Article  Description                                                                                                 WD  P  PU10  -     -  18  -     /        -        #
                                                                 10 206.2...  W.E37 / 16 x 40                                       Spool valve, directly operated
                       3/4"-16 UNF                                                                                                  Proportional
                                                                    260.4...  M.E35 / 16 x 40
                                                                 20 154.2600  Knurled nut M16 x 1 x 9                               Screw-in cartridge 7/8“-14 UNF
                                       (4)                       30 160.2170  O-ring ID 17,17 x 1,78 (NBR)
                                                                 40 160.1162  O-ring ID 16,00 x 1,25 (NBR)                          Designation of symbols acc. to table
                                       (3)
                                                                 50 160.2156  O-ring ID 15,60 x 1,78 (NBR)                          Nominal volume flow rate Q N   18 l/min
                                       (2)                          160.6156  O-ring ID 15,60 x 1,78 (FKM)
                                                                                                                                    Nominal voltage U      12 VDC    G12
                                                                 60 160.2120  O-ring ID 12,42 x 1,78 (NBR)                                      N          24 VDC    G24
                               (1)                                  160.6124  O-ring ID 12,42 x 1,78 (FKM)                                                 without coil   X5

                                                                 70 160.2111  O-ring ID 11,11 x 1,78 (NBR)
       Note!   For detailed cavity drawing and cavity tools see data   160.6111  O-ring ID 11,11 x 1,78 (FKM)                       Slip-on coil           Metal housing, round          W
               sheet 2.13-1055 and 2.13-1056                                                                                                               Metal housing, square         M
                                                                 80 160.2093  O-ring ID 9,25 x 1,78 (NBR)
                                                                    160.6092  O-ring ID 9,25 x 1,78 (FKM)                           Connection execution   Connector socket EN 175301-803 / ISO 4400   D
                                                                                                                                                           Connector socket AMP Junior-Timer   J
                                                                 90 049.3166  Backup ring rd 13,1 x 16 x 1,4                                               Connector Deutsch DT04-2P     G
                                                                100 049.3146  Backup ring rd 11,1 x 14 x 1,4
                                                                                                                                    Sealing material       NBR
                                                                110 049.3136  Backup ring rd 10 x 13 x 1,4                                                 FKM (Viton)   D1
                                                                                                                                    Manual override        without
                                                                                                                                                           with      HP
                                                                                                                                    Design index (subject to change)
                                                                                                                                    1.10-2720
                                                           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: 19 34  1.10-2710 E                   www.wandfluh.com  Illustrations are not binding  Data subject to change  1/4  Edition: 19 34  1.10-2720 E
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