Page 81 - Bürkert
P. 81

2/2-way Solenoid Valve in three versions






      6240  G 1/4”, G 3/8”, G 1/2”


            •  High performance – small size
            •  High pressure version up to 40 bar
            •  High temperature version up to 180 °C
            •  Fast-acting
            •  ATEX version optional
                                                                        2 (A)
            •  Without differential pressure switching

                                                                        1 (P)



         Type 6240 is a pilot-controlled solenoid valve with servo-piston and   Envelope Dimensions [mm] (see datasheet for details)
         forced valve lifting.  The valve opens without differential pressure from
         zero bar.  The special construction makes it possible to use it with dry
         gaseous mediums with high pressure and steam up to 180 °C.

         Technical Data
          Port connections  G 1/4”, G 3/8”, G 1/2”
          Orifice          DN6.0 mm, DN12.0 mm
          Body material    Brass, Stainless steel
          Coil material    Epoxy
          Coil insulation class  Class H
          Internal parts of valve  Brass/Stainless steel, PEEK, PTFE carbon filled,
                           FKM (EPDM on request) 1.4113, 1.4303
          Seal material    FKM, PTFE/FKM and PTFE/PEEK for high tem-
                           perature and high pressure versions
                           (EPDM on request)                   C                                 A
          Medium           Neutral gases and liquids, such as e.g. compressed
             High temperature   air, water, hydraulic oil
             version       Steam and hot medium                          B
          Viscosity        Max. 21 mm /sec
                                  2
          Medium temperature
            FKM            -10°C to +140 °C                                              Body    A   B    C
            PTFE/PEEK      DN6 -40 °C to +180 °C, DN12 -40 °C to +140 °C               connection
            EPDM           -30°C to +120 °C (on request)                                G 1/4”  45.0  40  67.3
          Ambient temperature  max. 55 °C                                               G 1/4”  51.0  40  67.3
          Operating voltage  24V DC, 24V/50Hz, 230/50Hz                                 G 3/8”  45.0  50  70.3
                           (others on request)                                          G 3/8”  51.0  50  70.3
          Voltage tolerance  ±10%                                                       G 1/2”  55.5  55  103.0
          Duty cycle       100% continuous rating
          Electrical connection  Tag connector acc. DIN EN 175 301-803 Form A
                           for cable plug Type 2508
                           (not included)
          Protection class  IP65 with cable plug
          Weight           AC 8W, DC 10W (300g); AC 18W, DC 16W
                           (800g)
          Installation     As required, preferably with actuator upright


                                   Power consumption           Response times
          Orifice   Coil    Inrush  Hold           DC         Opening  Closing
                    size   AC        AC        (hot/cold coil)
          [mm]     [mm]    [VA]  [VA/W]  [W]       [W]         [ms]     [ms]
          6         32     32     18     8        10/12        10-20    40-50
          6         40     40     23    10        12/14        10-20    40-50
          12        42     105    37    18        16/21        20-40   80-100
         Response times [ms]: Measured at the outlet with 6 bar inlet pressure at +20 °C
         Opening: Pressure build-up 0 to 90%   Closing: Pressure decrease 100 to 10%

    80
   76   77   78   79   80   81   82   83   84   85   86