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Overview
                                                                                                   Over-view
                                                            Proportional throttle valves and flow control valves                                                                                               Proportional throttle valves
                                                            Proportional throttle valves and flow control valves

                                                                                                                                   Proportional throttle valve
                                                                                                                                   Screw-in cartridge
                                   NG3-Mini            NG4-Mini            NG6 ISO            NG10 ISO                             •  Direct operated, not pressure compensated   M18x1,5
                                                                                                                                   •  Throttle in one flow direction               ISO 7789
                                                                                                                                   •  Q max  = 12 l/min,  p max  = 250 bar
                                                                  Types                                                            •  Q N max  = 6,3 l/min

                                                                                                                                   DESCRIPTION                        FUNCTION                           APPLICATION
                                                     QNPSA04-P           QNPSA06-P           QNPSA10-P                             Direct operated proportional throttle valve.   The force controlled wet pin proportional   Proportional throttel valves are suitable for
                                                                                                                                   Thread M18x1,5 and cavity in accordance with   solenoid acts directly on the control spool   precise feed control systems. Very sensitive
                                                        2.6-820            2.6-840             2.6-860                             ISO 7789. Spool options „normally closed“ and   which opens or closes the trottle segments of   opening and closing characteristics allow
          A   P      T   B                                                                                                         „normally open“. Two flow ranges are available.   the radial holes in the valve body. The throttle   smooth control of movements in stationary or
                                                                                                                                   The volume flow is adjusted by a Wandfluh-  opening and therefore the flow volume changes   mobile installations, e.g. machine tools, public
                                                                                                                                   proportional solenoid (VDE standard 0580).   proportionally to the current input to the pro-  vehicles. Installation of the screw-in cartridge
                                                      QNPSA04-T          QNPSA06-T           QNPSA10-T                             Progressive increase and decrease of volume   portional solenoid. With deenergised solenoid   in  control  blocks  as  well  as  in  the  Wanfluh
                                                                                                                                   flow and reduced hysteresis are characteri-  the control spool is held in closed respectivly   sandwich plates (vertical stacked systems)
                                                        2.6-820            2.6-840             2.6-860                             stics of this valve. The cartridge body is made   open position by a spring. To control the valve   and flange valves of the NG3-Mini types. (Ple-
          A   P      T   B
                                                                                                                                   of steel. Its special surface coating protects   proportional amplifiers are available from   ase note the separate data sheets in register
                                                                                                                                   the outside against corrosion and reduces   Wandfluh (see register 1.13).  2.6). Cavity tools are available for machining
                                                     QNPSA04-AV          QNPSA06-AV         QNPSA10-AV                             friction of the control spool. The solenoid is                        the cavities in steel and aluminium (hire or
                                                                                                                                   zinc coated.
                                                                                                                                                                                                         purchase). Please refer to the data sheets in
                                                        2.6-820            2.6-840             2.6-860                                                                                                   register 2.13.
          A   P      T   B
                                                     QNPSA04-BV          QNPSA06-BV         QNPSA10-BV                                                                TYPE CODE
                                                                                                                                                                                                        D      P   PM18  -    -       #
                                                        2.6-820            2.6-840             2.6-860
          A   P      T   B                                                                                                                                            Throttle valve
                                                                                                                                                                      Normally closed        N
                                                    QNPSA04-ABV         QNPSA06-ABV         QNPSA10-ABV                                                               Normally open          O

                                                        2.6-820            2.6-840             2.6-860                                                                Proportional
          A   P      T   B                                                                                                                                            Screw-in cartridge M18x1,5
                                                                                                                                                                      Nominal volume flow rate Q    N     4 l/min   4
                                                                        QDPFA06-A/B         QDPFA10-A/B                                                                                         6,3 l/min   6,3
                                                                           2.6-842             2.6-862                                                                Nominal voltage U         12 VDC     G12
                                                                                                                                                                                   N
          A   P      T   B                                                                                                                                                                      24 VDC     G24
                                                                                                                                                                      Design-Index (Subject to change)
                                                                         QDPSA06-P           QDPSA10-P
                                                                           2.6-842             2.6-862                             GENERAL SPECIFICATIONS                               HYDRAULIC SPECIFICATIONS
          A   P      T   B                                                                                                         Description      Direct operated proportional throttle valve  Fluid      Mineral oil, other fluid on request
                                                                                                                                   Construction     Screw-in cavity acc. to ISO 7789    Contamination efficiency   ISO 4406:1999, class 18/16/13
                                                                                                                                   Operations       Proportional solenoid                                   (Required filtration grade ß 6...10 ≥ 75)
                                                                           AMRP62                                                  Befestigungsart   Screw-in thread M18x1,5              Viscosity range   see data sheet 1.0-50/2
                                                                                                                                                    -20…50 °C
                                                                                                                                                                                                            12 mm /s…320 mm /s
                                                                                                                                   Ambient temperature
                                                                                                                                                                                                                 2
                                                                                                                                                                                                                          2
          A   P      T   B                                                                                                         Mounting position   any                              Fluid temperature   -20...+70 °C
                                                                                                                                   Fastening torque   M  = 30 Nm for screw-in cartridge  Peak pressure      p max  = 250 bar
                                                                                                                                                      D
                                                                                                                                                    M  = 1,2 Nm (Qual. 8.8) for solenoid screws   Nominal volume flow rates  Q = 4 l/min, Q = 6,3 l/min
                                                                                                                                                      D
                                                                                                                                                                                                             N
                                                                                                                                                                                                                       N
                                                                                                                                   Weight           m = 0,25 kg                                             at 10 bar pressure drop
                                                                           AMRG62             AMRG102                              Volume flow direction  1 → 2                         Max. Volume flow    Q max  = 12 l/min
                                                                                                                                                                                        Leakage volume flow   see characteristics
                                                                                                                                                                                        Resolution          1 mA
          A   P      T   B
                                                                                                                                   ELECTRICAL SPECIFICATIONS                            Repeatability       ≤ 1 % ∗
                                                                                                                                   Construction       Proportional solenoid, wet pin push type,   Hysteresis   ≤ 2 % ∗
                                                                                                                                                      pressure tight.                                       ∗ at optimal dithersignal
                                                                                                                                   Standard-Nominal voltage      U  = 12 VDC    U  = 24 VDC
                                                                                                                                                                        N
                                                                                                                                                         N
                                                                                                                                   Limiting current     I  = 1080 mA    I  = 540 mA
                                                                                                                                                        G              G
                                                                                                                                   Relative duty factor   100 % DF (see data sheet 1.1-430)
                                                                                                                                   Protection class   IP 65 to EN 60 529
                                                                                                                                   Connection/Power    Over device plug connection to
                                                                                                                                   supply             ISO 4400 / DIN 43 650 (2P+E)
                                                                                                                                   Other electrical specifications see data sheet 1.1-90 (PI29V)
       Wandfluh AG        Tel.  +41 33 672 72 72   E-mail:  sales@wandfluh.com   Illustrations not obligatory   Data sheet no.     Wandfluh AG         Tel.  +41 33 672 72 72   E-mail:  sales@wandfluh.com   Illustrations not obligatory   Data sheet no.
       Postfach           Fax  +41 33 672 72 12   Internet:  www.wandfluh.com   Data subject to change   2.6-502E 2/2              Postfach            Fax  +41 33 672 72 12   Internet:  www.wandfluh.com   Data subject to change   2.6-510E 1/2
       CH-3714 Frutigen                                                                            Edition 21 40                   CH-3714 Frutigen                                                                             Edition 05 06
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