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  • VARIO® chemistry vacuum system MD 4C EX VARIO +AK+EK

    VARIO® chemistry vacuum system - MD 4C EX VARIO +AK+EK
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    MD 4C EX VARIO+AK+EK

    Performance features

    • full advantage of ATEX chemistry diaphragm pumps with separator AK and emission condenser EK
    • VARIO®: short process times due to hysteresis-free VARIO® vacuum control
    • VARIO®: VARIO®-pump operates on demand only as fast as necessary – minimal power consumption, extended maintenance intervals, silent operation
    • VARIO®: Vacuum controller CVC 3000 (optional) for precise vacuum control and fully automatic processes
    • complete system accessories I/O module, supply / isolation amplifier and ATEX vacuum sensor - from one source

    Technical data

    Technical dataUnit MD 4C EX VARIO +AK+EK
    Vacuum controllerwithout controller
    Number of heads / stages4 / 3
    Max. pumping speedm3/h3.7
    Max. pumping speedcfm2.2
    Ultimate vacuum (abs.)mbar/torr3 / 2.3
    Ultim. vac. (abs.) with gas ballastmbar/torr10 / 7.5
    Integral leakage ratembar l/s0.1
    Ambient temperature range (operation)°C10 - 40
    Ambient temperature range (storage)°C-10 - 60
    Max. media temperature°C40
    Max. back pressure (abs.)bar1.1
    Inlet connectionSmall flange KF DN 25
    Outlet connectionHose nozzle DN 8-10 mm
    Coolant connection2 x hose nozzle DN 6-8 mm
    Rated motor powerkW0.25
    Max. operating currentA3.2
    Max. starting currentA150A / 2.5ms
    Motor speed rangemin-130 - 1500
    Degree of protectionIP 54
    Dimensions (L x W x H), approx.mm600 x 365 x 420
    Weight, approx.kg36
    Noise level at 50 Hz, typ.dBA42
    ATEX conformityPumping chamber (pumped gases): II 2G IIC T3 X
    Environment with inert purge gas: II 2G IIB T4 X
    Environment without inert purge gas: II 3G IIB T4 X
    Motor: II 2G Ex d IIB T4 Gb
    Items suppliedPumping unit completely mounted with inlet separator and emission condenser, ready for use, with manual. Shatter and shock protection for glass parts are to be provided by the customer. Speed control via 4-20 mA current loop (4 mA = 0 rpm, 20mA = 1500 rpm). Control signal cable 10 m, mains cable 2 m, without plugs.
    AccessoriesPTFE tubing KF DN 25 (1000 mm: 686033)
    Analog I/O module VACUU·BUS 4-20mA / 0-10V (635425)
    Signal conditioner 0-10V/4-20mA (635426)
    Power/input isolating amplifier 4-20mA (635427)
    Vacuum sensor ATEX +-1 mbar 4-20mA (635423)
    Vacuum sensor ATEX +-3 mbar 4-20mA (635424)
    Vacuum controller CVC 3000 (635028+612090)
    VACUU·BUS® male plug with cable 2m (612462)

    MD 4C EX VARIO +AK+EK - Pumping speed graph

    MD 4C EX VARIO +AK+EK - Pumping speed graph

    MD 4C EX VARIO +AK+EK - Pump down graph (100 l volume)

    MD 4C EX VARIO +AK+EK - Pump down graph
(100 l volume)

    MD 4C EX VARIO +AK+EK - Dimension sheet

    MD 4C EX VARIO +AK+EK - Dimension sheet

    MD 4C EX VARIO +AK+EK - Configuration example

    MD 4C EX VARIO +AK+EK - Configuration example

    -Technical data are subject to change without notice-

    Ordering data

    Product nameMains voltage and frequencyPlugOrder no.
    MD 4C EX VARIO +AK+EK 230 V~ 50 Hz
    Open wires 696937

    Product comparison

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    VARIO® chemistry diaphragm pump MD 4C EX VARIO
    -3 10 3.7 3.7--------

    VARIO® chemistry vacuum systemMD 4C EX
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    VARIO® chemistry vacuum system MD 4C EX VARIO +AK+EK
    MD 4C EX VARIO 3 10 3.7 3.7------

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    -2 10 8.1 8.1--------

    VARIO® chemistry diaphragm pumpMV 10C EX
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    MV 10C EX VARIO 2 10 8.1 8.1------