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Spool valve
                                                                                                  Spool valve                                                                                                                 Spool valve


       SYMBOL                                                                                                                      DIMENSIONS                                           HYDRAULIC CONNECTION
       Overview valves
                A    B                   A   B                                                                                          2                                                                    28
                                                                                                                                            45°                                                              14
              a    b                       a    b
        a               b            a                b                                                                                                              9.5
                P    T                   P   T                                                                                                                        5.2                                   P
                                                                                                                                                10   30 MD= 2.6Nm            MD= 5.2Nm
       Overview spool types                                                                                                                                                                              A       B       14    27
                  A B                     A B                                                                                                                                     8                    T           T0
                        AB1
             a
                   b
                                        a  a    b  b  AB2                                                                             16                                             38
                      b
           a
                                                                                                                                                                                  30
                  P T                     P T
                  A B                     A B                                                                                                  20
                        AC1
                   b
             a
                                         a  a   b  b  CB2                                                                                          40.4    12   50   57.2     8.1
                      b
           a
                  P T                     P T                                                                                                          77
                  A B                     A B                                                                                                               113.7
                   b    AD1                 a        DB2
             a
                                         a      b  b
                      b
           a
                  P T                     P T                                                                                           4.1
                  A B                     A B                                                                                         16
                        BE1
              a
                   b
                                        a   a     b  b  EA2
                      b
           a
                  P T                     P T
                  A B                     A B
                   b    AF1                 a        FB2                                                                           PARTS LIST                                           ACCESSORIES
             a
                                        a       b  b
           a
                      b
                  P T                     P T                                                                                        Position Article  Description                       Fixing screws               Data sheet 1.0-60
                  A B                     A B                                                                                            10 160.8252  O-ring ID 25,12 x 1,78 (FKM)       Threaded subplates          Data sheet 2.9-10
                   b    AG1                 a        GB2                                                                                 20 253.6002  Mechanical control head BTII NG4   Multi-station subplates     Data sheet 2.9-50
             a
                                        a       b  b                                                                                     30 246.2119  Socket head screw M5 x 18 DIN 912  Horizontal mounting blocks  Data sheet 2.9-90
                      b
           a
                  P T                     P T
                                                                                                                                         50 160.2052  O-ring ID 5,28 x 1,78 (NBR)        Technical explanations      Data sheet 1.0-100
                                                                                                                                            160.6052  O-ring ID 5,28 x 1,78 (FKM)        Filtration                  Data sheet 1.0-50
       PERFORMANCE SPECIFICATIONS
       Oil viscosity u = 30 mm /s
                       2
       p = f (Q)  Performance limits                        Q  = f (Q)  Leakage volume flow characteristics
                                                             L
                                                                      per control edge                                             SEALING MATERIAL                                     STANDARDS
                                                                                                                                   NBR or FKM (Viton) as standard, choice in the type code
           p [bar]                AD1 / DB2; BE1 / EA2; AF1 / FB2  Q [cm /min]                                                                                                           Mounting interface  Wandfluh standard
                                                                   3
         350  K4214                                           40  K1031                                                                                                                  Contamination      ISO 4406
         300                                    AB1 / AB2     35                                                                                                                         efficiency
         250                                    AC1 / CB2     30
                                                AG1 / GB2
         200                                                  25
                                                              20
         150                                                  15
         100                                                  10
          50                                                   5                                                                   INSTALLATION NOTES                                   SURFACE TREATMENT
           0                                                   0
            0     5    10    15   20    25    30  Q [l/min]     0    50  100  150  200  250  300  350 p [bar]                       Mounting type      Flange mounting                   ◆  The valve body is painted with a two component paint
                                                                                                                                                       3 fixing holes for                ◆  The roller housing and the cover are zinc-nickel coated
                                                                                                                                                       socket head screws M5 x 40
       Δp = f (Q)  Pressure drop volume flow characteristics                     Volume flow direction
                                                                                                                                    Mounting position  Any, preferably horizontal
           p [bar]                                          Symbol     P - A   P - B   P - T   A - T   B - T                        Tightening torque  Fixing screws M  = 5,2 Nm (screw
                                                                                                                                                                   D
         30  K1029                         4   2            AB1 / AB2    2       2       -       1      1                                              quality 8.8, zinc coated)
         25                                    1            AC1 / CB2    2       2       -       1      1
         20                                                                                                                        Note!    The length of the fixing screw depends on the base
         15                                    3            AD1 / DB2    2       2       -       1      1                                   material of the connection element.
         10                                                 BE1 / EA2    1       1       4       1      1
          5                                                 AF1 / FB2    1       1       3       1      1
          0                                                 AG1 / GB2    1       1       -       1      1
            0    5     10   15    20    25   30  Q [l/min]
                                                                                                                                                                                        Wandfluh AG  Postfach  CH-3714 Frutigen
                                                                                                                                                                                        Tel. +41 33 672 72 72  Fax +41 33 672 72 12  sales@wandfluh.com
                           www.wandfluh.com  Illustrations are not binding  Data subject to change  2/3  Edition: 19 23  1.5-26 E                      www.wandfluh.com  Illustrations are not binding  Data subject to change  3/3  Edition: 19 23  1.5-26 E
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