Chemistry diaphragm pumps and chemistry vacuum systems with ATEX approval, VARIO®

About this item

For use in explosive areas chemistry diaphragm pumps category 2 with ATEX conformity are available.

Full advantage of ATEX chemistry diaphragm pumps
VARIO®: 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
Noise level: 42 dB(A)
Electrical: 230 V, 50 Hz

In explosive areas, only operating materials with ATEX conformity may be used. VACUUBRAND offers chemistry diaphragm pumps and pumping units category 2 (for example, for zone 1) with ATEX conformity. Thanks to their high degree of chemical resistance, their oil-free operation, the absence of sliding surfaces, as well as the hermetic seal of the pump chamber against the drive zone, chemistry diaphragm pumps offer excellent conditions for avoiding sources of ignition.

Using the VACUU·SELECT controller, you control the vacuum and process steps intuitively using the touch display. VARIO® pumps control the vacuum by adjusting the motor speed. It offers the utmost precision, maximum efficiency and is especially quiet.

The suction-side separator (AK) collects droplets. The pressure-side emission condenser (EK) enables nearly 100% solvent recovery.

Delivery: Pump/s with motor/s (with control and mains cable/s at each of the motor/s) completely mounted, ready for use, with manual. Speed control via 4 to 20 mA current loop (4 mA = 0 min⁻¹, 20 mA = 1500 min⁻¹). Control signal and mains cable length 10 m, without plug. Models VARIO MD 4C EX / MV 10C EX with one/two motors, respectively.

Specifications

Catalog No:
VACU20696936
VACU20696937
VACU20696946
VACU20696947

Model:
MD 4C EX VARIO
MD 4C EX VARIO+AK+EK
MV 10C EX VARIO
MV 10C EX VARIO+AK+EK

No. of stages:
3
3
4
4

Flow rate:
62 l/min
62 l/min
135 l/min
135 l/min

Ultimate total vacuum without gas ballast:
3 mbar
3 mbar
2 mbar
2 mbar

Final pressure with gas ballast:
10 mbar
10 mbar
10 mbar
10 mbar

Protection class:
IP 54
IP 54
IP 54
IP 54

Connection on pressure side (EX):
Small flange KF DN 16
Hose nozzle DN 8 - 10 mm
Small flange KF DN 16
Hose nozzle DN 8 - 10 mm

Connection on suction side (IN):
Small flange KF DN 25
Small flange KF DN 25
Small flange KF DN 25
Small flange KF DN 25

ATEX approval:
Pumping chamber (pumped gases):
II 2G Ex h IIC T3 Gb X
Environment (without inert purge gas):
II 3G Ex h IIB T4 Gc X
Environment (with inert purge gas):
II 2G Ex h IIB T4 Gb X
Motor: II 2G Ex d IIB T4 Gb
Pumping chamber (pumped gases):
II 2G Ex h IIC T3 Gb X
Environment (without inert purge gas):
II 3G Ex h IIB T4 Gc X
Environment (with inert purge gas):
II 2G Ex h IIB T4 Gb X
Motor: II 2G Ex d IIB T4 Gb
Pumping chamber (pumped gases):
II 2G Ex h IIC T3 Gb X
Environment (without inert purge gas):
II 3G Ex h IIB T4 Gc X
Environment (with inert purge gas):
II 2G Ex h IIB T4 Gb X
Motor: II 2G Ex d IIB T4 Gb
Pumping chamber (pumped gases):
II 2G Ex h IIC T3 Gb X
Environment (without inert purge gas):
II 3G Ex h IIB T4 Gc X
Environment (with inert purge gas):
II 2G Ex h IIB T4 Gb X
Motor: II 2G Ex d IIB T4 Gb