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Proportional pressure reducing valve
                                                                         Proportional pressure reducing valve                                                                                          Proportional pressure reducing valve


       GENERAL SPECIFICATIONS                              HYDRAULIC SPECIFICATIONS                                                DIMENSIONS                                           HYDRAULIC CONNECTION
       Designation        Proportional pressure reducing valve  Working pressure  p  = 350 bar                                                                                          Cavity drawing according to Wandfluh standard
                                                                                max
       Construction       Pilot operated                    Nominal pressure   P N red  = 20 bar, 100 bar, 200 bar, 315 bar
       Mounting           Screw-in cartridge construction   range                                                                        30                    s24                                            M18x1.5
       Nominal size       M18 x 1,5 according to Wandfluh   Volume flow range  Q = 0…20 l/miin                                           15                         M18x1.5
                          standard                          Leakage oil        See characteristics                                    68.8   MD=5.5Nm                                                                (3)
       Actuation          Proportional solenoid             Hysteresis         ≤ 4 % at optimal dither signal                                                         (3)  (2)
       Ambient temperature  -25…+70 °C                      Repeatability      ≤ 1 % at optimal dither signal                          29                                     (1)                                    (2)
       Weight             0,40 kg                           Fluid              Mineral oil, other fluid on request
                                                                                                                                          40
       MTTFd              150 years                         Viscosity range    12 mm /s…320 mm /s                                     MD= 1.2Nm   10        18      50  60 70   80 90                                (1)
                                                                                            2
                                                                                   2
                                                            Temperature range   -25…+70 °C (NBR)                                              10.3      76.3            44                                     (1)
                                                            fluid              -20…+70 °C (FKM)                                                             130.6
       ELECTRICAL SPECIFICATIONS                            Contamination      Class 18 / 16 / 13                                                                                       Note!    For detailed cavity drawing and cavity tools see data
                                                            efficiency                                                                                                                           sheet 2.13-1020
       Protection class   IP65
       Relative duty factor  100 % DF                       Filtration         Required filtration grade ß 6…10 ≥ 75,
                                                                               see data sheet 1.0-50
       Service life time  10  (number of switching cycles,                                                                         PARTS LIST                                           ACCESSORIES
                            7
                          theoretically)
       Voltage tolerance  ± 10 % with regard to nominal voltage                                                                      Position Article  Description                       Proportional amplifier          Register 1.13
       Standard nominal   12 VDC, 24 VDC                                                                                                 10 256.2418  Proportional solenoid PI29V-G12    Flange body / sandwich plate NG3-Mini  Data sheet 2.3-800
       voltage                                                                                                                              256.2453  Proportional solenoid PI29V-G24    Threaded body                   Data sheet 2.9-210
       Limiting current at  I  = 1080 mA (12 VDC)                                                                                        15 253.8000  Manual override HB4,5              Technical explanations          Data sheet 1.0-100
                           G
       50 °C              I  = 540 mA (24 VDC)                                                                                           18 160.2120  O-ring ID 12,42 x 1,78 (NBR)
                           G                                                                                                                                                             Filtration                      Data sheet 1.0-50
       Note!   Other electrical specifications see data sheet 1.1-90                                                                     30 219.2002  Electric plug B (black)
                                                                                                                                         40 246.0151  Socket head screw M3 x 50 DIN 912
                                                                                                                                         50 160.2156  O-ring ID 15,60 x 1,78 (NBR)
                                                                                                                                            160.6156  O-ring ID 15,60 x 1,78 (FKM)      MANUAL OVERRIDE
       PERFORMANCE SPECIFICATIONS                                                                                                        60 160.2111  O-ring ID 11,11 x 1,78 (NBR)      HB4,5 as standard
       Oil viscosity u = 30 mm /s                                                                                                           160.6111  O-ring ID 11,11 x 1,78 (FKM)
                       2
       p  = f (Q)  Pressure volume flow characteristics     p  = f (Q)  Pressure volume flow characteristics                             70 049.3156  Backup ring rd 12,1 x 15 x  1,4
        red                                                  red
                  Maximal adjustable pressure                         Minimal adjustable pressure                                        80 160.2093  O-ring ID 9,25 x 1,78 (NBR)
           p [bar]                                                    *Consumer resistance depending on the system                          160.6092  O-ring ID 9,25 x 1,78 (FKM)
         400  K0245                                            p [bar]                                                                   90 049.3137  Backup ring rd 10,6 x 13,5 x  1,4
                                                P N red  = 315 bar  25  K0246
         300                                                           p N red  = 315 bar
                                                              20
         200                                    P N red  = 200 bar                                                                 SURFACE TREATMENT                                    SEALING MATERIAL
                                                              15
         100                                    P N red  = 100 bar  10  p N red  = 200 bar                                          ◆  All external parts of the cartridge as well the solenoid coil are   NBR or FKM (Viton) as standard, choice in the type code
                                                                     p N red  = 100 bar           ∗                                  zinc-nickel coated
           0                                    P N red  = 20 bar  5     p N red  = 20 bar
            20  15  10   5   0   5   10  15   20               0
                  A     T  Q [l/min]  P   A                   20  15  10   5   0    5  10   15  20
                                                                       A     T  Q [l/min]  P   A                                 STANDARDS                                            INSTALLATION NOTES
                                                                                                                                    Cartridge cavity    Wandfluh standard                Mounting type      Screw-in cartridge M18 x 1,5
                                                                                                                                    Solenoids           DIN VDE 0580                     Mounting position  Any, preferably horizontal
       p  = f (n)  Pressure adjustment characteristics      Q  = f (p)  Leakage volume flow characteristic
        red                                                  L                                                                      Connection execution D  EN 175301 – 803              Tightening torque  M  = 40 Nm Screw-in cartridge
                  Measured at Q = 0 l/min (static)                    A (1) → T (3)                                                                                                                          D
                                                                                                                                    Protection class    EN 60 529                                           M  = 1,2 Nm solenoid screws
                                                                                                                                                                                                             D
           p [bar]                                              Q [cm /min]
                                                                    3
         400  K0248                                          400  K0247                                                             Contamination efficiency  ISO 4406
         300                                   P N red  = 315 bar  300
         200                                   P N red  = 200 bar  200
         100                                   P N red  = 100 bar  100
                                               P N red  = 20 bar
           0                                                   0
            0   10  20  30  40 50 60 70 80 90  100 l [%]         0   50   100  150  200  250  300  350 p [bar]
                                                                                                                                                                                        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 15  2.3-610 E                      www.wandfluh.com  Illustrations are not binding  Data subject to change  3/3  Edition: 19 15  2.3-610 E
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