The new ATEX chemistry diaphragm pumps and ATEX chemistry vacuum systems

Since July 1st 2003, in the European Union only equipment with ATEX conformity (European Union Directive 94/9/EC) may be used in potentially explosive atmospheres. Based on the successful chemistry diaphragm pumps, VACUUBRAND has developed pumps of equipment class 2 (e.g. for use in zone 1) with ATEX conformity. Combined with the well-known EX vacuum gauges, VACUUBRAND offers an complete product range for the generation and measurement of vacuum in potentially explosive atmospheres.

ATEX conformity:

Pumping chamber (pumped gas): II 2G IIC T3 X
Environment (witout inert gas purge): II 3G IIB T4 X
Environment (with inert gas purge): II 2G IIB T4 X
Motor: II 2G EEx d IIB T4

Application

Many solvents are flammable and have a high vapour pressure, therefore they can form an explosive mixture with air. Thanks to their high chemical resistance, oilfree operation, absence of friction and hermetical separation of pumping chamber and motor, chemistry diaphragm pumps offer excellent features for the avoidance of ignition sources. Especially VACUUBRAND's chemistry diaphragm pumps with their precisely guided planar diaphragms show clear advantages. Typical applications are e.g. vacuum generation in rotary evaporators, parallel evaporators, cabinet dryers with solvents as well as all applications with large quantities of flammable solvents.

Advantages

motor with integrated self-locking overload and excess-temperature protection for direct 230 V / 50 Hz single-phase power supply. No need for expensive additional overcurrent protection
diaphragm pump heads made of antistatic, reinforced fluoroplastics, partly with metal stability core. Connecting elements and other parts made of antistatic materials
separate inert gas connection included
overpressure safety relief valves internally and at outlet
Safety dual-diaphragm technology with inert gas purge option

Type	Ultimate vacuum	Ultimate vacuum with gas ballast	Pumping speed*
	mbar	mbar	m³/ h
MZ 2C EX	12	18	1.9
MD 4C EX	3	10	3.7
MV 10C EX	2	10	8.1
* max. pumping speed at 50 Hz according to ISO 21360

ATEX Chemistry diaphragm pump		Cat. No.
MZ 2C EX	230 V~ 50 Hz 1-ph.	69 69 20*
MD 4C EX	230 V~ 50 Hz 1-ph.	69 69 30*
MV 10C EX	230 V~ 50 Hz 1-ph.	69 69 45*
ATEX Chemistry vacuum systems
MZ 2C EX + AK + EK**	230 V~ 50 Hz 1-ph.	69 69 21*
MD 4C EX + AK + EK**	230 V~ 50 Hz 1-ph.	69 69 31*

* with on/off switch, 2 m cable without plug.
** AK, EK: External protection from glass damage and breakage must be provided by the user

Brochure ATEX Chemistry Diaphragm Pumps (0.72 MB, PDF)

Further downloads

VACUUBRAND GMBH + CO KG
Alfred-Zippe-Str. 4
97877 Wertheim
Germany
Tel.: +49 9342 808-0
Fax: +49 9342 808-450
E-Mail: infovacuubrand.de
Internet: www.vacuubrand.de