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TYPICAL VALVES




            Valves adapted to the various applications ensure that the different requirements such as
            small leakage, freely adjustable volume flows or pressures as well as seat tight closing of
            control lines can be easily realised. The valve is mainly operated manually or electrically.
            If the hydraulic performance is to be adjusted continuously and remotely, proportional
            hydraulics is used. The valve is controlled with electronics.




          SPOOL VALVES, FLANGE WDMF                          CHARACTERISTICS
                                                             Controls the oil flow and can thus, for example, determine the

                                                             direction of movement of a cylinder. The valve is screwed as a
                                                             flange onto a standardised mounting interface.

                                                             FEATURES
                                                             •  Solenoid valve remotely controlled via intelligent electronics
                                                             •  Direct or pilot operated
                                                             •  Optionally detented, for safety in the case of power failure
                                                             •  Small losses due to low leakage
                                                             •  Soft switching for reduction of shocks
                                                             •  Switching position monitoring
                                                             AB2
                                             AB1             •  Pressure max. 350 bar
                                              A B          A B
                                                               b
                                           a   b           a  •  Flow max. 160 l/min
                                        a          b    a           b
                                              P T          P T •  Nominal sizes NG3, NG4, NG6, NG10
          SPOOL VALVES WITH INTEGRATED ELECTRONICS           CHARACTERISTICS
          WDRFA06                                            The volume flow is controlled proportionally to the command

                                                             value signal. The valve is factory set.
                                                             FEATURES
                                                             •  Linear characteristics
                                                             •  High dynamics (35Hz)
                                                             •  Precise reproducibility and very small hysteresis
                                                             •  Direct operated

                                                             •  Integrated amplifier electronics with spool position control
                                              ACB-S
                                               A  B
                                                             •  Optional with controller function
                                           a   0  b
                                   a                  b      •  Pressure max. 350 bar
                                               P  T
                                                             •  Flow max. 40 l/min
                                                             •  Nominal sizes NG4, NG6
          POPPET VALVES SANDWICH Z_2204                      CHARACTERISTICS
                                                             For  leakage-free closing  functions  such  as  safe holding of
                                                             loads, clamping and gripping of workpieces or for pilot control
                                                             of larger valves.
                                                             FEATURES
                                                             •  Metallically sealing seat, resulting in an excellent and
                                                              long-lasting tight seal
                                                             •  Direct or pilot operated
                                                             •  2/2- and 3/2-way executions
                                           1

                                        a                    •  Seal tight in all directions of flow
                                           2
                                                             •  Sandwich, flange and cartridge construction types

                                        A  P  T  B


          PAGE 6            |            WANDFLUH INDUSTRIAL   |        PRODUCTS       |        TYPICAL VALVES
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