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Non-return valve                                                                                                             Non-return valve
                                                                                             Non-return valve


       GENERAL SPECIFICATIONS                              HYDRAULIC SPECIFICATIONS                                                Non-return valve hydraulically pilot operated
       Designation        Non-return valve                  Working pressure   p  = 350 bar                                        Screw-in cartridge construction                      M22 x 1,5
                                                                                max
       Mounting           Sandwich construction             Opening pressure   p  = 0,8 bar                                           Q  = 80 l/min                                     ISO 7789
                                                                                a                                                   ◆  max
       Nominal size       NG10 according to ISO 4401-05     Maximum volume flow  Q  = 100 l/min                                     ◆  p  = 350 bar
                                                                                max                                                    max
       Actuation          None                              Leakage oil        Seat tight, max. 0,15 ml / min (approx. 3
       Ambient temperature  -25…+70 °C                                         drops / min) at 30 cSt                              DESCRIPTION                                          APPLICATION


       Weight             1,2 kg                            Fluid              Mineral oil, other fluid on request                 Hydraulically pilot operated non-return valve in screw-in cartridge   Pilot operated non-return valves are used for closing off pressuri-
                                                            Viscosity range    12 mm /s…320 mm /s                                  construction  for  cavity  according  to  ISO  7789.  In  the  free  flow     sed hydraulic cylinders leak free, for example in lifting or clamping
                                                                                   2
                                                                                            2
                                                            Temperature range   -25…+70 °C (NBR)                                   direction (2 → 1), the volume flow opens the spring loaded seat   devices.  The  spool  valve  that  directs  the  volume  flow  to  port  x,
                                                            fluid              -20…+70 °C (FKM)                                    cone. In the opposite direction (1 → 2), the spring keeps the valve   should have both service ports connected to the tank in the rest
                                                            Contamination      Class 20 / 18 / 14                                  closed. If pressure is built up in connection x, the pilot control spool   position for reasons of operational safety.




                                                            efficiency                                                             is shifted and the non-return valve of the closed off port is opened
                                                            Filtration         Required filtration grade ß 10…16 ≥ 75,             by this. The required pilot control pressure depends on the pilot
                                                                               see data sheet 1.0-50                               ratio.


       PERFORMANCE SPECIFICATIONS                          ACCESSORIES                                                             SYMBOL                                               INSTALLATION NOTES
       Oil viscosity u = 30 mm /s                           Fixing screws                 Data sheet 1.0-60                                                                              Mounting type      Screw-in cartridge M22 x 1,5
                       2
       ∆p = f (Q)  Pressure drop volume flow characteristic  Threaded subplates           Data sheet 2.9-40                           1                                                  Mounting position  Any
                                                                                                                                                                                         Tightening torque  M  = 60 Nm Screw-in cartridge
          p [bar]                                           Multi-station subplates       Data sheet 2.9-70                                                                                                  D
         10  K0281                                          Module type manifold blocks   Data sheet 2.9-110
          8                                                 Technical explanations        Data sheet 1.0-100                          2  x (3)
          6                                                 Hydraulic fluids              Data sheet 1.0-50
          4                                                 Filtration                    Data sheet 1.0-50                        TYPE CODE
          2                                                                                                                                                                                                        RNX  PM22  -     -     #
          0                                                                                                                         Non-return valve hydraulically pilot operated
           0  10  20  30  40  50  60  70  80  90  100  Q [l/min]
                                                                                                                                    Screw-in cartridge M22 x 1,5
       DIMENSIONS                                          HYDRAULIC CONNECTION                                                     Opening pressure p a      2 bar     2 5
                                                                                                                                                           5 bar


                       80                       38                                 54                                               Sealing material       NBR
                                                       6.5                                                                                                 FKM (Viton)   D1
                                                                                  P
                      P                                                                                                                                    NBR 872     Z604

                                                                                                1.5
                                                                              A        B           16.8
                                                                        46                                                          Design index (subject to change)
                                                                                                   9.7                              2.7-61
                 A          B                                               T            To
         60
                                                                                                                                   GENERAL SPECIFICATIONS                               HYDRAULIC SPECIFICATIONS
                                                                                   20.8
             T                  To
                                                                                 24                                                 Designation        Non-return valve hydraulically pilot   Working pressure  p  = 350 bar
                                                                                                                                                                                                             max
                                                                                                                                                       operated                          Opening pressure   p  = 2; 5 bar
          20    10  30                                                                                                              Mounting           Screw-in cartridge construction                       a
                                                                                                                                                                                         Maximum volume flow  Q  = 80 l/min
                                                                                                                                                                                                             max
                                                                                                                                    Nominal size       M22 x 1,5 according to ISO 7789   Leakage oil        Seat tight, max. 0,15 ml / min (approx. 3
       PARTS LIST                                          INSTALLATION NOTES                                                       Actuation          None                                                 drops / min) at 30 cSt
                                                                                                                                    Ambient temperature  -25…+90 °C                      Fluid              Mineral oil, other fluid on request
        Position Article  Description                       Mounting type      Sandwich mounting                                                                                                                2        2
            10 160.2120  O-ring ID 12,42 x 1,78 (NBR)                          4 fixing holes for                                   Weight             0,15 kg                           Viscosity range    12 mm /s…320 mm /s
               160.6124  O-ring ID 12,42 x 1,78 (FKM)                          socket head screws or studs M6                                                                            Temperature range   -25…+90 °C (NBR)
                                                            Mounting position  Any                                                                                                       fluid              -20…+90 °C (FKM)
           20* 160.2132  O-ring ID 13,10 x 2,62 (NBR)                                                                                                                                    Contamination      Class 20 / 18 / 14
               160.6132  O-ring ID 13,10 x 2,62 (FKM)       Tightening torque  Fixing screws M  = 8,9 Nm (quality 8.8,                                                                   efficiency
                                                                                           D
            30 160.2140  O-ring ID 14,00 x 1,78 (NBR)                          zinc coated)                                                                                              Filtration         Required filtration grade ß 10…16 ≥ 75,
               160.6141  O-ring ID 14,00 x 1,78 (FKM)
                                                                                                                                                                                                            see data sheet 1.0-50
       Note!   * in A, B and T, when non-return valve in A, B, AB, T or                                                                                                                  Pilot ratio        See characteristic
               PT                                                                                                                                                                        Area ratio         i = 1 : 3
               Position 30 only with ARVP10                Wandfluh AG  Postfach  CH-3714 Frutigen
                                                           Tel. +41 33 672 72 72  Fax +41 33 672 72 12  sales@wandfluh.com

                           www.wandfluh.com  Illustrations are not binding  Data subject to change  2/2  Edition: 18 45  2.7-50 E                      www.wandfluh.com  Illustrations are not binding  Data subject to change  1/2  Edition: 18 44  2.7-61 E
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