This chemistry vacuum system provides the simultaneous operation of two processes with only one pump. Typical applications are rotary evaporators, vacuum concentrators and vacuum drying ovens. Each vacuum connection is provided with a manual valve to regulate the effective flow at each port. The MD 4C NT pump offers more than sufficient pumping speed also for the parallel operation of two challenging applications. The separator at the inlet (AK), made of glass with a protective coating, retains particles and liquid droplets. The waste vapor condenser at the outlet (EK) is highly efficient and compact. The condenser enables near-100-percent solvent recovery, efficient recycling and active protection of the environment.
| Weight | 17.6 kg |
| Manufacturer | BRAND (BrandTech Scientific) |
| Items supplied | Pumping unit completely mounted, ready for use, with manual. |
| Protection class IEC 60529 | IP 40 |
| Upper ambient temperature (operation) | 40 °C |
| Lower ambient temperature (operation) | 10 °C |
| Dimension B in mm | 248 mm |
| Max. pumping speed 50 Hz | 3.4 m 3 /h |
| Max. pumping speed 60 Hz | 2.2 cfm |
| Ultimate vacuum | 1.5 mbar / 1.1 torr |
| Ultimate vacuum with gas ballast | 3 mbar / 2.2 torr |
| Number of heads | 4 |
| Number of stages | 3 |
| Lower ambient temperature (storage) | -10 °C |
| Upper ambient temperature (storage) | 60 °C |
| Max. back pressure (abs.) | 1.1 bar |
| Inlet connection | 2 x hose nozzle DN 8-10 mm |
| Outlet connection | Hose nozzle DN 8-10 mm |
| Rated motor power | 0.25 kW |
| Rated motor speed at 50/60 Hz | 1500/1800 min -1 |
| Dimension L in mm | 326 mm |
| Dimension H in mm | 402 mm |
| Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) | 45 dBA |
| ATEX conformity | II 3/- G Ex h IIC T3 Gc X Internal Atm. only |
| NRTL certification | Yes |
| Rated mains voltage range 1 | 230 V |
| Mains frequency 1 | 50-60 Hz |
| Coolant connection | 2 x hose nozzle DN 6-8 mm |