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Proportional pressure relief valve
                                                                             Proportional pressure relief valve                                                                                           Proportional pressure relief valve


       GENERAL SPECIFICATIONS                              HYDRAULIC SPECIFICATIONS                                                DIMENSIONS                                           HYDRAULIC CONNECTION
       Designation        Proportional pressure relief valve  Working pressure  p  = 400 bar                                                                                            Cavity drawing according to ISO 7789–22–02–0–98
                                                                                max
       Construction       Direct operated                   Nominal pressure   P  = 20 bar, 100 bar, 200 bar, 315 bar, 350
                                                                                N
       Mounting           Screw-in cartridge construction   range              bar                                                                                      s30                                   M22x1.5
       Nominal size       M22 x 1,5 according to ISO 7789   Maximum volume flow  Q  = 25 l/min (p  = 20 / 100 / 200 bar)                   15
                                                                                           N
                                                                                max
       Actuation          Proportional solenoid                                Q  = 20 l/min (p  = 315 bar)                            MD=5.5Nm                        M22x1.5
                                                                                max
                                                                                           N
       Ambient temperature  -25…+70 °C                                         Q  = 2 l/min (p  = 350 bar)                            76.8                                 (2)                                         (2)
                                                                                max
                                                                                          N
       Weight             0,6 kg                            Minimum volume flow  Q  = 0,1 l/min                                         37.1
                                                                                min
       MTTFd              150 years                         Leakage oil        See characteristics                                       W=                                     (1)                                    (1)
                                                            Hysteresis         ≤ 4 % at optimal dither signal
                                                            Repeatability      ≤ 1 % at optimal dither signal                              12    17      10    18      50 70      60                           (1)
                                                            Fluid              Mineral oil, other fluid on request                     MD=5Nm              78.4           37
                                                            Viscosity range    12 mm /s…320 mm /s                                                                                       Note!    For detailed cavity drawing and cavity tools see data
                                                                                   2
                                                                                            2
       ELECTRICAL SPECIFICATIONS
                                                            Temperature range   -25…+70 °C (NBR)                                                              121.6                              sheet 2.13-1003
       Protection class   Connection execution D: IP65      fluid              -20…+70 °C (FKM)                                                                               HB0
                          Connection execution J: IP66      Contamination      Class 18 / 16 / 13
                                                                                                                                                                           15
                          Connection execution G: IP67 and IP69K  efficiency                                                                                           MD= 9.5Nm
       Relative duty factor  100 % DF                       Filtration         Required filtration grade ß 6…10 ≥ 75,                                                                   MANUAL OVERRIDE
       Standard nominal   12 VDC, 24 VDC                                       see data sheet 1.0-50                                   74.8                                             HB4,5
                                                                                                                                                                                        Optionally: Screw plug (HB0), no actuation possible
       voltage                                                                                                                           35
       Limiting current at  I  = 1320 mA (U  = 12VDC)
                                     N
                           G
       50 °C              I  = 660 mA (U  = 24VDC)                                                                                        M =                                           SURFACE TREATMENT
                           G        N
       Note!   Other electrical specifications see data sheet 1.1-173                                                                                                                    ◆  The cartridge body made of steel and the slip-on coil are
               (slip-on coil W) and 1.1-174 (slip-on coil M)                                                                                             10                               zinc-nickel coated

                                                                                                                                   PARTS LIST                                           ACCESSORIES
       PERFORMANCE SPECIFICATIONS                                                                                                    Position Article  Description                       Proportional amplifier          Register 1.13
       Oil viscosity u = 30 mm /s
                       2
                                                                                                                                         10 206.2…  W.S37 / 19 x 50                      Electric plug B (black)         Article no. 219.2002
       p  = f (Q)  Pressure volume flow characteristics     p  = f (Q)  Pressure volume flow characteristics                                260.5…  M.S35 / 19 x 50                      Flange body / sandwich plate NG4-Mini  Data sheet 2.3-720
                                                             red
        red
                  Maximal adjustable pressure                         Minimal adjustable pressure
                                                                                                                                         12 154.2700  Knurled nut                        Flange body / sandwich plate NG6  Data sheet 2.3-740
           p [bar]                                             p [bar]                                                                   15 253.8000  HB4,5 manual override
         400  K0949                                           40  K0950                   P N = 315 bar  P N = 200 bar                                                                   Flange body / sandwich plate NG10  Data sheet 2.3-760
                P N = 350 bar                                                                                                               239.2033  HB0 Screw plug                     Threaded body                   Data sheet 2.9-200
         300                            P N =315 bar          30                                   P N = 100 bar                         17 160.2187  O-ring ID 18,72 x 2,62 (NBR)
                                                                                                                                                                                         Technical explanations          Data sheet 1.0-100
         200                                   P N = 200 bar  20                                   P N = 20 bar                          18 160.2170  O-ring ID 17,17 x 1,78 (NBR)       Hydraulic fluids                Data sheet 1.0-50
         100                                   P N = 100 bar  10  P N =350 bar                                                           50 160.2188  O-ring ID 18,77 x 1,78 (NBR)       Filtration                      Data sheet 1.0-50
                                               P N = 20 bar                                                                                 160.6188  O-ring ID 18,77 x 1,78 (FKM)
           0                                                   0                                                                         60 160.2140  O-ring ID 14,00 x 1,78 (NBR)
            0      5     10     15     20     25  Q [l/min]     0      5      10    15     20     25  Q [l/min]
                                                                                                                                            160.6141  O-ring ID 14,00 x 1,78 (FKM)
                                                                                                                                                                                        SEALING MATERIAL
                                                                                                                                         70 049.8177  Back-up ring PTSM rd 12,4 x 15,3 x 1,4  NBR or FKM (Viton) as standard, choice in the type code
       p  = f (n)  Pressure adjustment characteristics      Q  = f (p)  Leakage volume flow characteristic
        red                                                  L
                  Measured at Q = 1 l/min
           p [bar]                                             Q [cm /min]                                                         STANDARDS                                            INSTALLATION NOTES
                                                                   3
         400  K0790                                           40  K0791
                                               P N = 350 bar
                                               P N = 315 bar                                                                        Cartridge cavity     ISO 7789                        Mounting type      Screw-in cartridge M22 x 1,5
         300                                                  30
                                                                                                                                    Solenoids            DIN VDE 0580                    Mounting position  Any, preferably horizontal
         200                                   P N = 200 bar  20                                                                    Connection execution D  EN 175301 – 803              Tightening torque  M  = 60 Nm Screw-in cartridge
                                                                                                                                                                                                             D
         100                                   P N = 100 bar  10                                                                    Protection class     EN 60 529                                          M  = 5 Nm knurled nut
                                                                                                                                                                                                             D
                                               P N = 20 bar                                                                         Contamination efficiency  ISO 4406                                      M  = 9,5 Nm HB0
                                                                                                                                                                                                             D
           0                                                   0                                                                                                                                            M  = 5,5 Nm HB4,5
            0   10  20  30  40 50 60 70 80 90  100 l [%]        0    50  100  150  200  250  300  350 p [bar]                                                                                                D

                                                                                                                                                                                        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: 17 43  2.3-539 E                      www.wandfluh.com  Illustrations are not binding  Data subject to change  3/3  Edition: 17 43  2.3-539 E
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