We help you.
personally and competent

+41 61 717 99 77


Industriestrasse 31
CH-4147 Aesch

  • Immediate order
Items |
CHF 0.00
d | f | e

Chemistry diaphragm pump MD 4C EX VARIO Vacuubrand

With the new ATEX VARIO® chemistry diaphragm pumps and vacuum systems, the vacuum can be precisely controlled by the motor speed. The VARIO® pump is driven by an additional control signal line. The optional vacuum controller CVC 3000 with system accessories (I/O-Module, supply / isolation amplifier) and ATEX vacuum sensor enable fully automatic evaporations without the need for parameter settings or user programming. With the adaptive control it finds the boiling pressure independently and adjusts the vacuum continuously and optimally according to the vapor pressure. The vacuum controller and system accessories are installed in a non-hazardous area.

Performance features
  • full advantage of ATEX chemistry diaphragm pumps
  • short process times due to hysteresis-free VARIO® vacuum control
  • VARIO®-pump operates on demand only as fast as necessary – minimal power consumption, extended maintenance intervals, silent operation
  • 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
Vacuum controller: without controller
Number of heads / stages: 4 / 3
Max. pumping speed: 3.7 m3/h
Max. pumping speed: 2.2 cfm
Ultimate vacuum (abs.): 3 / 2.3 mbar/torr
Ultim. vac. (abs.) with gas ballast: 10 / 7.5 mbar/torr
Integral leakage rate: 0.1 mbar l/s
Ambient temperature range (operation): 10 - 40 °C
Ambient temperature range (storage): -10 - 60 °C
Max. media temperature: 40 °C
Max. back pressure (abs.): 1.1 bar
Inlet connection: Small flange KF DN 25
Outlet connection: Small flange KF DN 16
Rated motor power: 0.25 kW
Max. operating current: 3.2 A
Max. starting current: 150A / 2.5ms A
Motor speed range: 30 - 1500 min-1
Degree of protection: IP 54
Dimensions (L x W x H), approx.: 469 x 265 x 305 mm
Weight, approx.: 28 kg
Noise level at 50 Hz, typ.: 42 dBA
ATEX conformity: Pumping 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 supplied: Pump completely mounted, ready for use,
with manual, 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.

  Read more
item number   price stock amount

CHF 11'520.00


Recent products