Page 527 - Softbound_Edition_19_en
P. 527

Poppet valve
                                                                                             Poppet valve cartridge


            ELECTRICAL SPECIFICATIONS                            STANDARDS
             Protection class   IP65 / 66 / 67                    Cartridge cavity   ISO 7789
             Relative duty factor  100 % DF                       Explosion protection  Directive 2014 / 34 / EU (ATEX)
             Switching frequency  5'000 / h                       Flameproof enclosure  EN / IEC / UL 60079-1, 31
             Voltage tolerance  ± 10 % with regard to nominal voltage  Cable entry   EN 60079-0, 1, 7, 15, 31
             Standard nominal   12 VDC, 24VDC, 115 VAC, 230 VAC   Protection class   EN 60 529
             voltage            AC = 50 to 60 Hz ± 2 %, with built-in   Contamination   ISO 4406
                                two-way rectifier                 efficiency
             Standard nominal   9 W, 15 W, 17 W
             power
             Temperature class  Nominal power 9 W: T1…T6
                                Nominal power 15 W / 17 W: T1…T4
            Note!    Other electrical specifications see data sheet 1.1-183
                     and 1.1-184




            PERFORMANCE SPECIFICATIONS
            Oil viscosity u = 30 mm /s
                             2
             p = f (Q)  Performance limit                                           Switching times
                       Measured with nominal voltage -10% at 50 °C         Type    Flow     Energised  De-energised
                 p [bar]                                                         direction
              350  K0735_1                                                  AB    1 → 2   approx. 100 ms  approx. 60 ms
              300                                                                 2 → 1   approx. 100 ms  approx. 80 ms
              250                                                 SVYPM33
              200                                                           BA    1 → 2    approx. 30 ms  approx. 100 ms
              150                                                                 2 → 1    approx. 30 ms  approx. 100 ms
              100
               50                                                           BC    2 → 1    approx. 30 ms  approx. 70 ms
                0                                                           CB    2 → 1    approx. 60 ms  approx. 70 ms
                  0   20   40   60   80  100 120 140 160  Q[l/min]


             ∆p = f (Q)  Pressure drop volume flow characteristics  Note!  With the L15 / L17 execution for ambient temperatures
                                                                          up to 70 °C, the  characteristics have been evaluated
                p [bar]                                                   with an ambient temperature of 50 °C.
               20  K0736_2
                                                                          The switching times depend on the volume flow,
               15
                                                                          pressure and viscosity. In case of small volume flows,
               10                  AB / BA                                the switching time can get considerably longer.
                                                                 Attention!  Long periods of non-actuation can reduce the switching
                5
                                                                          performance
                0                   BC / CB
                 0     25   50    75   100   125  150 Q [l/min]



            SURFACE TREATMENT                                    MANUAL OVERRIDE

             ◆  The cartridge body, the slip-on coil and the armature tube are   Screw plug (HB0), no actuation possible.
               zinc-nickel coated                                Optionally HN (K) or HG (K) (pushing) resp. HZ (K) (pulling)
                                                                 → See data sheet 1.1-311
                                                                 Attention!  The manual override HZ (K) can neither be dismantled
                                                                          nor retrofitted









                            www.wandfluh.com  Illustrations are not binding  Data subject to change  3/4  Edition: 22 17  1.11-2085 E
                                                                                                            Page 527
   522   523   524   525   526   527   528   529   530   531   532