VARIO® chemistry pump MD 12C VARIO select
MD 12C VARIO select
VACUUBRAND743750ca. 450 mmca. 260 mmca. 25.5 kgThe MD 12C VARIO select pump is an excellent solution for those who need high pumping speed and are working with high boiling point solvents. Combined with the reliability born of its chemical resistant fluoropolymer and perfluoroelastomer wetted materials, this pump delivers reliable performance for floor-standing rotary evaporators, vacuum drying ovens, vacuum distillation columns, and other similar applications.
The integrated VACUU·SELECT controller provides an easy-to-use, application based interface that covers all common lab applications. The VACUU·SELECT controller has you covered. Use manual set-point-control for simple processes, run fully automated distillations, or create your own application with simple drag-and-drop editing. For solvent evaporation, the VACUU·SELECT controller continuously detects the boiling point and automatically adjusts the vacuum process to maintain process control. With VARIO control, the pump runs only as fast is necessary. This extends the maintenance intervals and makes the pumping unit whisper quiet.
Performance features
- VACUU·SELECT vacuum controller with graphical user interface and predefined applications simplifies work in the laboratory
- automatic boiling point detection and adjustment of the vacuum for short process times
- meets high vacuum requirements for large quantities of most high boiling solvents
- extraordinary diaphragm life for minimum operational and servicing costs
Technical data
| Technical data | Unit | MD 12C VARIO select |
|---|---|---|
| Vacuum controller | VACUU·SELECT | |
| Number of heads / stages | 8 / 3 | |
| Max. pumping speed | m3/h | 15.0 |
| Max. pumping speed | cfm | 8.8 |
| Ultimate vacuum (abs.) | mbar/torr | 1.5 / 1.1 |
| Ultim. vac. (abs.) with gas ballast | mbar/torr | 3 / 2.2 |
| Ambient temperature range (operation) | °C | 10 - 40 |
| Ambient temperature range (storage) | °C | -10 - 60 |
| Max. back pressure (abs.) | bar | 1.1 |
| Inlet connection | Small flange KF DN 25 | |
| Outlet connection | Hose nozzle DN 15 mm | |
| Rated motor power | kW | 0.7 |
| Motor speed range | min-1 | 30 - 2400 |
| Degree of protection | IP 40 | |
| Dimensions (L x W x H) | mm | 533 x 260 x 450 |
| Weight | kg | 25.5 |
| Noise level at 50 Hz, typ. | dBA | 47 |
| ATEX conformity (only 230V) | II 3G IIC T3 X Internal Atm. only | |
| Items supplied | Pumping unit completely mounted, ready for use, with manual. | |
| Accessories | PTFE tubing KF DN 25 (1000 mm: 686033) Inlet separator KF DN 25 (699979) Emission condenser kit for NT pump models (699948) Vent valve VBM-B (674217) Centering and sealing ring KF DN 25 C Al/FEP (635722) |
MD 12C VARIO select - Pumping speed graph MD 12C VARIO select - Pump down graph (100 l volume) |
MD 12C VARIO select - Dimension sheet |
-Technical data are subject to change without notice-
Ordering data
| Product name | Mains voltage and frequency | Plug | * Old order-no. | * New order-no. |
|---|---|---|---|---|
| MD 12C VARIO select | 200-230 V~ 50-60 Hz 100-120 V~ 50-60 Hz | CEE | 743750 | 20743750 |
| 200-230 V~ 50-60 Hz 100-120 V~ 50-60 Hz | UK | 743752 | 20743752 | |
| 200-230 V~ 50-60 Hz 100-120 V~ 50-60 Hz | US | 743753 | 20743753 | |
| 200-230 V~ 50-60 Hz 100-120 V~ 50-60 Hz | CN | 743756 | 20743756 | |
| 200-230 V~ 50-60 Hz 100-120 V~ 50-60 Hz | IN | 743757 | 20743757 |
* As part of the implementation process of our new ERP system in 2018 our catalog numbers are extended to 8 digits in length by adding the digits “2” or “20” to the beginning of the old catalog numbers.
