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Solenoid operated spool valve
                                                                                Solenoid operated spool valve                                                                                                Solenoid operated spool valve


       TYPE CODE                                                                                                                   PERFORMANCE SPECIFICATIONS
                                                                                                                                                    2
                                                             WD  Z  F  A06  -     -     -     /     /     -     Z546  #            Oil viscosity u = 30 mm /s
       Spool valve direct operated                                                                                                  p = f (Q)  Performance limits 100 Ω                  p = f (Q)  Performance limits 152 Ω
       Explosion proof execution Ex ia                                                                                                 p [bar]                AB_/ACB   ADB  AB3            p [bar]                  AB_ / ACB    AB3
                                                                                                                                      350  K1181                                          350  K4208                   ADB
       Flange construction                                                                                                            300                                                 300
                                                                                                                                      250                                                 250
       International standard interface ISO, NG6                                                                                      200                                                 200
                                                                                                                                      150                                                 150
       Designation of symbols acc. to table                                                                                           100                                                 100
                                                                                                                                      50                                                   50
       Spool specification    Standard                                                                                                 0                                                    0
                              Low Leakage   x                                                                                           0      4      8      12     16     20  Q [l/min]     0      4      8     12     16     20  Q [l/min]

       Coil resistance        100 Ω     100
                              152 Ω     152
                                                                                                                                    Δp = f (Q)  Pressure drop volume flow characteristic  Q  = f (p)  Leakage volume flow characteristic
                                                                                                                                                                                          L
       Equipment group        I (Mining)   Z319   only in combination with coil resistance 100 Ω                                                                                                   P → T
                              II (Surface)   T6
                                                                                                                                       p [bar]                                             Q [cm /min]   Standard
                                                                                                                                                                                                3
       Connection execution              D                                                                                            50  K1182                                           80  K1183
                                         K                                                                                            40
                                                                                                                                                                                          60
       Sealing material       NBR                                                                                                     30
                              FKM (Viton)   D1                                                                                        20                                                  40
                                                                                                                                      10                                                  20
       Execution
                                                                                                                                       0                                                   0
       Design index (subject to change)                                                                                                 0      4      8     12     16     20  Q [l/min]     0    50  100  150  200  250  300  350  p [bar]
       1.3-42
                                                                                                                                                                                                3
       GENERAL SPECIFICATIONS                              ELECTRICAL SPECIFICATIONS                                               Attention!  If, because of the given operating conditions, during the   80 Q [cm /min]  Low leakage
       Designation        4/2-, 4/3-spool valve             Protection class   IP65                                                         switching process volume flows occur which exceed
       Construction       Direct operated                   Relative duty factor  Continuous operation                                      the power limit of the valve, these have to be limited by   60
                                                                                                                                            a throttle or an orifice in connection P.
       Mounting           Flange construction               Switching frequency  1'800 / h                                                  In case of a continuous flow through, the throttle or   40
       Nominal size       NG6 according to ISO 4401-03      Service life time  10  (number of switching cycles,                             orifice, depending on the system behaviour, an   20
                                                                                7
       Actuation          Ex-protection switching solenoid                     theoretically)                                               additional heating-up of the valve is possible. This has   0
       Ambient temperature  -25…+45 °C (operation as T6)    Voltage tolerance  ± 10 % with regard to nominal voltage                        to be appropriately taken into account by the user.  0  50  100  150  200  250  300  350  p [bar]
                          -25…+60 °C (operation as T1…T5)   Limiting current at  I  = 90 mA (100 Ω execuiton)
                                                                               min
       Weight             3,2 kg (1 solenoid)               50 °C              I  = 64 mA (152 Ω execuiton)
                                                                               min
                          5,3 kg (2 solenoids)              Temperature class  T1…T6                                               ACCESSORIES                                          MANUAL OVERRIDE
       MTTFd              150 years                         Coil resistance    100 Ω, 152 Ω                                                                                             HB4,5 as standard
                                                            Minimum power      P  = 0,81 W (100 Ω execution)                        Fixing screws                Data sheet 1.0-60
                                                                                min
                                                            consumption        P  = 0,62 W (152 Ω execution)                        Threaded subplates           Data sheet 2.9-10
       HYDRAULIC SPECIFICATIONS                                                 min                                                 Multi-station subplates      Data sheet 2.9-50
                                                           Note!    Other electrical specifications, recommended power
       Working pressure   p  = 350 bar                                                                                              Module type manifold blocks  Data sheet 2.9-90
                           max                                      supply and safety-related limits see data sheet 1.1-185
       Tank pressure      p    = 200 bar                                                                                            Technical explanations       Data sheet 1.0-100     SEALING MATERIAL
                           T max
       Maximum volume flow  Q  = 20 l/min, see characteristics                                                                      Filtration                   Data sheet 1.0-50      NBR or FKM (Viton) as standard, choice in the type code
                           max
       Leakage oil        See characteristics                                                                                       Relative duty factor         Data sheet 1.1-430
       Fluid              Mineral oil, other fluid on request
       Viscosity range    12 mm /s…320 mm /s
                               2
                                        2
       Temperature range   -25…+45 °C (operation as T6, NBR)
       fluid              -20…+45 °C (operation as T6, FKM)                                                                        STANDARDS                                            SURFACE TREATMENT
                          -25…+60 °C (operation as T1…T5, NBR)                                                                      Explosion protection  Directive 2014 / 34 / EU (ATEX)  ◆  The valve body is painted with a two component paint
                          -20…+60 °C (operation as T1…T5, FKM)                                                                                                                           ◆  The armature tube, the slip-on coil and the plug screw are
       Contamination      Class 20 / 18 / 14                                                                                        Mounting interface  ISO 4401-03                       zinc-nickel coated
                                                                                                                                                       EN 60 529
                                                                                                                                    Protection class
       efficiency
       Filtration         Required filtration grade ß 10…16 ≥ 75,                                                                   Contamination      ISO 4406
                          see data sheet 1.0-50                                                                                     efficiency


                           www.wandfluh.com  Illustrations are not binding  Data subject to change  2/4  Edition: 19 26  1.3-42 E                      www.wandfluh.com  Illustrations are not binding  Data subject to change  3/4  Edition: 19 26  1.3-42 E
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