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P. 898

Pressure reducing valve



                                                                                                                                   Pressure reducing cartridge
                                                                                                                                    ◆  pilot operated                                   M22 x 1,5
                                                                                                                                    ◆  p  = 400 bar                                     ISO 7789
                                                                                                                                       max
                                                                                                                                    ◆  p N red max  = 350 bar
                                                                                                                                    ◆  Q  = 80 l/min
                                                                                                                                       max



                                                                                                                                   DESCRIPTION                                          APPLICATION
                                                                                                                                   Pilot operated pressure reducing valve in screw-in cartridge cons-  The integrated pressure relief makes an additional pressure relief
                                                                                                                                   truction for cavity according to ISO 7789. The valve reduces the   valve  in  the  consumer  line  superfluous.  In  the  case  of  several
                                                                                                                                   input pressure to an adjustable output pressure. Through the integ-  consumers, the pressure of the specific consumers can be individu-
                                                                                                                                   rated pressure relief function, exceeding the reduced pressure as a   ally  adjusted  by  the  pressure  reducing  valve.  Pressure reducing
                                                                                                                                   result of external forces is avoided. The  pressure reducing valve   valves are used  to maintain the pressure in a consumer constant
                                                                                                                                   controls the pressure in port A (1). Through increasing the spring   independent  of  pressure  fluctuations  on  the  supply  side.    The
                                                                                                                                   tension, the pressure in port A(1) rises.  The valve operates practi-  screw-in cartridge is perfectly suitable for installation in control
                                                                                                                                   cally independently of the pressure in port P (2). Pressure increase   blocks. For machining the cartridge cavity in steel and aluminum
                                                                                                                                   in  port  A  (1)  to  above  the  adjusted  value,  e.g.  through  an  active   blocks, cavity tools are available (hire or purchase). Please refer to


                                                                                                                                   consumer, is avoided by discharging excess oil to the tank (3).       the data sheets in register 2.13.



                                                                                                                                   SYMBOL                                               ACTUATION
                                                                                                                                                                                         Actuation          Adjustment spindle M8 x 1
                                                                                                                                         (A) 1                                           Execution          S = blockable key adjustment
                                                                                                                                                                                                            D = blockable knob adjustment
                                                                                                                                                                                                            Optionally:
                                                                                                                                                                                                            K = lockable adjustment
                                                                                                                                     (P) 2  (T) 3                                                           G = star handle adjustment
                                                                                                                                                                                                            → see Data sheet 2.0-50
                                                                                                                                                                                         Actuation angle    a  = 1800 ° (5 rotations)
                                                                                                                                                                                                             b
                                                                                                                                                                                         Actuation stroke   S  = 5 mm
                                                                                                                                                                                                             b


                                                                                                                                   TYPE CODE

                                                                                                                                                                                                                M  V     PM22  -     -     #
                                                                                                                                    Pressure reducing valve

                                                                                                                                    Pilot operated
                                                                                                                                    Type of adjustment     Key                      S
                                                                                                                                                           Control knob             D
                                                                                                                                                           Cover                    A
                                                                                                                                    Screw-in cartridge M22 x 1,5

                                                                                                                                    Nominal pressure range p N   63 bar            63
                                                                                                                                                           160 bar                 160
                                                                                                                                                           350 bar                 350

                                                                                                                                    Sealing material       NBR
                                                                                                                                                           FKM (Viton)             D1
                                                                                                                                    Design index (subject to change)
                                                                                                                                    2.2-530






                                                                                                                                                      www.wandfluh.com  Illustrations are not binding  Data subject to change  1/3  Edition: 21 51  2.2-530 E
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