Page 289 - Softbound_Edition_19_en
P. 289

Spool valve
                                                                                                       Spool valve


            Spool valve
                                                                 NG6
            Flange construction                                  ISO 4401-03
             ◆  pneumatically operated
             ◆  4/2-way impulse valve
             ◆  4/3-way with spring centred mid position
             ◆  4/2-way with spring reset
             ◆  Q  = 80 l/min
                max
             ◆  p  = 350 bar
                max

            DESCRIPTION                                          APPLICATION
            Direct  operated  spool  valve,  pneumatically  operated,  with  4   Spool valves are mainly used for controlling direction of movement



            connections in a 5 chamber system. Spool detented or with spring   and stopping of hydraulic cylinders and motors.


            reset. Without actuation, the spool is held in the center position by
            the spring (4/3), or switched back to the offset position (4/2). With
            the detent, the spool is held in the last switching position selected.
            Precise spool fit, low leakage, long service life time. Spool made
            from hardened steel, valve body from high quality hydraulic cast

            steel.


            SYMBOL

                        AB3                      AB1                       AB2
                       A  B                       A   B                A   B

             a     a     b     b         a     a    b     b         a   a     b      b
                       P  T                       P   T                P   T

                        ACB                      AC1                       CB2
                      A    B                      A   B                A    B
             a     a     0   b      b    a     a    b     b         a     a   b      b
                      P    T                      P   T                P    T

                        ADB                      AD1                       DB2
                      A    B                      A   B                A    B
                         0                          b                     a
             a     a         b      b    a     a          b         a         b      b
                      P    T                      P   T                P    T
                        BEA                      BE1                       EA2
                      A    B                      A   B                A    B
             a      a    0    b     b    a      a   b     b         a     a    b     b
                      P    T                      P   T                P    T


                        AFB                      AF1                       FB2
                      A    B                      A   B                A    B
             a     a     0   b      b    a     a    b     b         a     a   b      b
                      P    T                      P   T                P    T


                        AGB                      AG1                       GB2
                      A    B                      A   B                A    B
             a     a     0   b      b    a     a    b     b         a     a   b      b
                      P    T                      P   T                P    T







                                www.wandfluh.com  Illustrations are not binding  Data subject to change  1/4  Edition: 21 22  1.6-32 E
                                                                                                            Page 289
   284   285   286   287   288   289   290   291   292   293   294