Page 483 - Softbound_Edition_19_en
P. 483

Poppet valve
                                                                                             Poppet valve cartridge


            PERFORMANCE SPECIFICATIONS
            Oil viscosity u = 30 mm /s
                             2
             p = f (Q)  Performance limits                                                 Flow direction
                       Measured with nominal voltage -10 %        Execution      1 → 2    2 → 1    2 → 3    3 → 2
                       Measured at 50 °C                          SDZPM18-AB      1        1         -        -
                       P ≥ 0,81 W (90 mA, 100 Ohm)
                                                                  SDZPM18-BA      1        1         -        -
                 p [bar]               4   2
              250  K4142                               1          SDZPM18-FG      2        3        3        4
              200
              150
              100                             3
               50
                0
                  0       2        4       6        8  Q [l/min]


             p = f (Q)  Performance limits                                                 Flow direction
                       Measured with nominal voltage -10 %        Execution      1 → 2    2 → 1    2 → 3    3 → 2
                       Measured at 50 °C                          SDZPM18-AB      1        1         -        -
                       P ≥ 0,62 W (64 mA, 152 Ohm)
                                                                  SDZPM18-BA      1        1         -        -
                 p [bar]
              250  K4143           3  4      2         1          SDZPM18-FG      2        1        3        4
              200
              150
              100
               50
                0
                  0    1     2     3    4     5     6  Q [l/min]


             ∆p = f (Q)  Pressure drop volume flow characteristics                         Flow direction
                p [bar]                                           Execution      1 → 2    2 → 1    2 → 3    3 → 2
               10  K4144                                          SDZPM18-AB      2        1         -        -
                8                                                 SDZPM18-BA      1        1         -        -
                6                     3                           SDZPM18-FG      2        2        3        3
                4
                2                            2       1
                0
                 0        2       4        6       8   Q [l/min]




            STANDARDS                                            INSTALLATION NOTES
             Cartridge cavity   ISO 7789                          Mounting type      Screw-in cartridge M18 x 1,5
             Explosion protection  Directive 2014 / 34 / EU (ATEX)  Mounting position  Any, preferably horizontal
             Flameproof enclosure  EN / IEC 60079-1 / 31          Tightening torque  M  = 40 Nm Screw-in cartridge
                                                                                      D
             Cable entry        EN 60079-0, 1, 7, 15, 31                             M  = 5 Nm knurled nut
                                                                                      D
             Protection class   EN 60 529
             Contamination      ISO 4406
             efficiency





                            www.wandfluh.com  Illustrations are not binding  Data subject to change  3/4  Edition: 22 15  1.11-2054 E
                                                                                                            Page 483
   478   479   480   481   482   483   484   485   486   487   488