Page 270 - Softbound_Edition_19_en
P. 270

Spool valve
                                                                                                  Spool valve                                                                                                                 Spool valve


       SYMBOL                                                                                                                      DIMENSIONS                                           HYDRAULIC CONNECTION
       Overview valves
                A    B                   A   B                                                                                           2.6                                                                      17.8
                                                                                                                                                                                                             T
              a    b                       a    b                                                                                              45°
        a               b            a                b                                                                                                            9.5
                P    T                   P   T                                                                                                  10     30           5.2     MD= 5.2Nm                 31   A      B          21    32.5
            Overview spool types                                                                                                                         MD= 5.2Nm                7
                  A B                     A B                                                                                                                                                                P
                        AB1
                   b
                                        a  a    b  b  AB2                                                                              16                                                                  21.5   40.5
             a
                      b
           a
                  P T                     P T                                                                                                                                     39    46
                  A B                     A B
                        AC1
                   b
             a
                                         a  a   b  b  CB2
                      b
           a
                  P T                     P T                                                                                                 20   10.3     50
                  A B                     A B                                                                                                     39.8           68        15.3
                   b    AD1                 a        DB2
             a
                                         a      b  b                                                                                                 81.8
                      b
           a
                  P T                     P T                                                                                                               131.1
                  A B                     A B
                        BE1
              a
                   b
                                        a   a     b  b  EA2                                                                              4.1
                      b
           a
                  P T                     P T                                                                                         16
                  A B                     A B
                   b    AF1                 a        FB2
             a
                                        a       b  b
                      b
           a
                  P T                     P T
                  A B                     A B
                   b    AG1                 a        GB2                                                                           PARTS LIST                                           ACCESSORIES
             a
                                        a       b  b
                      b
           a
                  P T                     P T                                                                                        Position Article  Description                       Fixing screws               Data sheet 1.0-60
                                                                                                                                         10 160.8252  O-ring ID 25,12 x 1,78 (FKM)       Threaded subplates          Data sheet 2.9-30
       PERFORMANCE SPECIFICATIONS                                                                                                        20 253.6003  Mechanical control head ATII-K9    Multi-station subplates     Data sheet 2.9-60
       Oil viscosity u = 30 mm /s                                                                                                        30 246.2516  Socket head screw M5 x 16 A4 DIN 912  Horizontal mounting blocks  Data sheet 2.9-100
                       2
       p = f (Q)  Performance limits                        Q  = f (Q)  Leakage volume flow characteristics                              50 160.2093  O-ring ID 9,25 x 1,78 (NBR)        Technical explanations      Data sheet 1.0-100
                                                             L                                                                              160.6092  O-ring ID 9,25 x 1,78 (FKM)
                                                                      P → T                                                                                                              Filtration                  Data sheet 1.0-50
           p [bar]                                             Q  [cm /min]
                                                                    3
                                                                 L
         350  K4217                              BE1 / EA2    300  K4219
         300                                                  250
         250                                     AB1 / AB2    200                                  AD1 / DB2                       SEALING MATERIAL                                     STANDARDS
         200                                     AC1 / CB2    150                                                                  NBR or FKM (Viton) as standard, choice in the type code  Mounting interface  ISO 4401-03
         150                                     AD1 / DB2                                         AB1 / AB2
                                                 AF1 / FB2
         100                                    AG1 / GB2     100                                  AC1 / CB2                                                                             Contamination      ISO 4406
          50                                                  50                                                                                                                         efficiency
           0                                                   0                                    p [bar]
            0    10    20    30   40    50    60  Q [l/min]     0    50  100  150  200  250  300  350
                                                                                                                                   INSTALLATION NOTES                                   SURFACE TREATMENT
                                                                                                                                    Mounting type      Flange mounting                   ◆  The valve body, the cover, the roller housing and the socket head
       Δp = f (Q)  Pressure drop volume flow characteristics                                                                                           4 fixing holes for                 screws are made of stainless steel
                                                                                                                                                       socket head screws M5 x 45
          p [bar]                                                                                                                   Mounting position  Any, preferably horizontal
         30  K4218                                                                                                                  Tightening torque  Fixing screws M  = 5,2 Nm (screw
         25                                                                                                                                            quality 8.8, zinc coated)
                                                                                                                                                                   D
         20
         15                                                                                                                        Note!    The length of the fixing screw depends on the base
         10                                                                                                                                 material of the connection element.
          5
          0
           0  5  10  15  20  25  30  35  40 45 50 55  60  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 26  1.5-46S E                      www.wandfluh.com  Illustrations are not binding  Data subject to change  3/3  Edition: 19 26  1.5-46S E
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