Page 1005 - Softbound_Edition_19_en
P. 1005

Proportional pressure reducing valve
                                                                               Proportional pressure reducing valve


            Proportional pressure reducing cartridge
             ◆  direct operated                                  M16 x 1,5
             ◆  Q  = 6 l/min                                     Wandfluh standard
                max
             ◆  p  = 210 bar (350 bar)                           x II 2 G Ex db IIC T6, T4
                max
             ◆  p    = 40 bar
                N red max
                                                                 x II 2 D Ex tb III C T80 °C, T130 °C
                                                                 x I M2 Ex db I Mb
                                                                 Class I Division 1
                                                                 Class I Zone 1
                                                                 APPLICATION
            DESCRIPTION
            Direct operated proportional pressure reducing valve in screw-in   These  valves  are  suitable  for  applications  in  explosion-hazard
            cartridge construction for cavity according to Wandfluh standard.   areas, open cast and also in mines. The electrical remote control in
            Proportionally to the solenoid current, the solenoid force and the   conjunction  with  process  controls  allows  economical  solutions
            pressure in port A (1) rise. The valve functions practically indepen-  with repeatable processes. For machining the cartridge cavity in
            dently of the pressure in port P (2). Pressure increase in the con-  steel  and  aluminum  blocks,  cavity  tools  are  available  (hire  or

            sumer port A (1) to above the adjusted value, e.g. through an active   purchase). Please refer to the data sheets in register 2.13.
            consumer, is avoided by discharging excess oil to the tank T (3).
            With the solenoid deenergised, the oil flows freely from consumer
            port A (1) to port T (3). For the control, Wandfluh proportional ampli-
            fiers  are  available  (see  register  1.13).  The  pressure  tight  encap-
            sulated Ex-protection solenoid coil prevents an explosion on the
            inside penetrating to the outside as well as an ignitable surface
            temperature.

            SYMBOL                                               CERTIFICATES
                                                                               Surface   Mining  Standard   M248
                  (A) 1                                                                           -25 °C   Electronic
                                                                                                   to…
                                                                  ATEX           x         x        x        x
                                                                  IECEx          x         x        x        x
              (P) 2  (T) 3
                                                                  CCC            x         x        x        x
                                                                  EAC            x         x        x        x
                                                                  Australia      x         x        x
                                                                  MA                       x        x        x
                                                                  UL / CSA       x                  x
                                                                 The certificates can be found on www.wandfluh.com


            GENERAL SPECIFICATIONS                               ACTUATION
             Designation        Proportional pressure reducing valve  Actuation      Proportional solenoid, wet pin push
             Construction       Direct operated                                      type, pressure tight
             Mounting           Screw-in cartridge construction   Execution          MKY45 / 18x60 (data sheet 1.1-183)
             Nominal size       M16 x 1,5 according to Wandfluh                      MKU45 / 18x60 (data sheet 1.1-184)
                                standard                          Connection         Cable gland for cable Ø 6,5…14 mm
             Actuation          Proportional solenoid            Attention!  The UL execution is always supplied without cable
             Ambient temperature  Operation as T4                         gland
                                -25…+70 °C (L15 / L17)
                                -25…+50 °C (L21)
             Weight             2,2 kg
             MTTFd              150 years







                               www.wandfluh.com  Illustrations are not binding  Data subject to change  1/4  Edition: 21 21  2.3-602 E
                                                                                                           Page 1005
   1000   1001   1002   1003   1004   1005   1006   1007   1008   1009   1010