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Proportional spool valve
                                                                                           Proportional spool valve


            GENERAL SPECIFICATIONS                                HYDRAULIC SPECIFICATIONS
             Designation        Proportional spool valve          Working pressure   p  = 350 bar
                                                                                      max
             Construction       Pilot operated                    Tank pressure      p    = 160 bar (type of pilot operation
                                                                                      T max
             Mounting           Flange construction                                  ae and xi)
             Nominal size       NG10 according to ISO 4401-05                        p T max  = 100 bar (type of pilot operation ti
             Actuation          Ex-protection proportional solenoid                  and xe)
             Ambient temperature  Operation as T6                 Pilot pressure     p  = 25...350 bar
                                                                                      v
                                -25…+40 °C (L9)                                      Connection X:
                                Operation as T4                                      p  = 25...200 bar
                                                                                      v
                                -25…+90 °C (L9)                   Pressure pilot oil drain  Minimum 25 bar lower than p v
                                -25…+70 °C (L15 / L17)            Maximum volume flow  Q  = 200 l/min, see characteristics
                                                                                      max
             Weight             5,2 kg (1 solenoid)               Leakage oil        See characteristics
                                7,0 kg (2 solenoids)              Fluid              Mineral oil, other fluid on request
             MTTFd              150 years                         Viscosity range    12 mm /s…320 mm /s
                                                                                                   2
                                                                                          2
                                                                  Temperature range   Operation as T6
                                                                  fluid              NBR -25…+40 °C (L9)
                                                                                     FKM -20…+40 °C (L9)
                                                                                     Operation as T4
                                                                                     NBR -25…+70 °C (L9 or L15 / L17)
                                                                                     FKM -20…+70 °C (L9 or L15 / L17)
                                                                  Contamination      Class 18 / 16 / 13
                                                                  efficiency
                                                                  Filtration         Required filtration grade ß 6…10 ≥ 75,
                                                                                     see data sheet 1.0-50


                                                                  Attention!  With the execution L9 for ambient temperatures up to 90
                                                                          °C (L9/90 °C), Q  is not reached
                                                                                     N




            ELECTRICAL SPECIFICATIONS                            MANUAL OVERRIDE
             Protection class   IP65 / 66 / 67                   HB4,5 as standard
             Relative duty factor  100 % DF                      Optionally: HN (K)
             Voltage tolerance  ± 10 % with regard to nominal voltage  → see data sheet 1.1-311
             Standard nominal   12 VDC, 24 VDC
             voltage
             Limiting current at… °C L9, 40 °C                   SURFACE TREATMENT
                                I  = 625 mA (12 VDC)              ◆  The main valve body, the distance plate, the screw plugs, the
                                G
                                I  = 305 mA (24 VDC)               slip-on coil and the armature tube are zinc-nickel coated
                                G
                                L15 / 17, 50 °C                   ◆  The pilot valve body is coated with a two component paint
                                I  = 950 mA (12 VDC)
                                G
                                I  = 450 mA (24 VDC)
                                G
                                L15 / 17, 70 °C
                                I  = 910 mA (12 VDC)             SEALING MATERIAL
                                G
                                I  = 420 mA (24 VDC)             NBR or FKM (Viton) as standard, choice in the type code
                                G
             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







                            www.wandfluh.com  Illustrations are not binding  Data subject to change  3/5  Edition: 21 18  1.10-3520 E
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