Page 975 - Softbound_Edition_19_en
P. 975

Proportional pressure relief valve
                                                                                   Proportional pressure relief valve


            Proportional pressure relief cartridge
             ◆  pilot operated                                   M33 x 2
             ◆  Q  = 230 l/min                                   ISO 7789
                max
             ◆  p  = 400 bar
                max
             ◆  p   = 350 bar
                N max

            DESCRIPTION                                          APPLICATION
            Pilot  operated  proportional  pressure  relief  valve  in  screw-in     The electrical remote control in conjunction with process controls
            cartridge construction for cavity according to ISO 7789. High flow   allows  economical  solutions  with  repeatable  processes.  The
            capacity, very sensitively adjustable. When the operating pressure   screw-in cartridge is perfectly suitable for installation in control
            adjusted  by  means  of  the  proportional  solenoid  is  reached,  the     blocks. For machining the cartridge cavity in steel and aluminum
            valve opens and connects the protected line with the drain to the   blocks, cavity tools are available (hire or purchase). Please refer to
            tank. The back pressure in T (2) affects the pressure in P (1). For the   the data sheets in register 2.13.


            control,  Wandfluh  proportional  amplifiers  are  available  (see

            register 1.13).



            SYMBOL                                               ACTUATION
                                                                  Actuation          Proportional solenoid, wet pin push
                   (T) 2                                                             type, pressure tight
                                                                  Execution          W.S37 / 19 x 50 (Data sheet 1.1-173)
                                                                                     M.S35 / 19 x 50 (Data sheet 1.1-174)
                                                                  Connection         Connector socket EN 175301 – 803
                   (P) 1                                                             Connector socket AMP Junior-Timer
                                                                                     Connector Deutsch DT04 – 2P


            TYPE CODE
                                                                       B  V  P  PM33  -     -     /        -        #
             Pressure relief valve
             Pilot operated
             Proportional

             Screw-in cartridge M33 x 2

             Nominal pressure range p   N  100 bar   100   275 bar   275
                                    200 bar      200    350 bar     350
             Nominal voltage U      12 VDC       G12
                         N
                                    24 VDC       G24
                                    without coil   X5
             Slip-on coil           Metal housing round              W
                                    Metal housing square             M
             Connection execution   Connector socket EN 175301-803 / ISO 4400   D
                                    Connector socket AMP Junior - Timer   J
                                    Connector Deutsch DT04 - 2P      G
             Sealing material       NBR
                                    FKM (Viton)   D1

             Manual override        Manual override                 HB4,5
                                    Screw plug                      HB0

             Design index (subject to change)
             2.3-551

                               www.wandfluh.com  Illustrations are not binding  Data subject to change  1/3  Edition: 17 44  2.3-551 E
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