MD 12C NTChemistry diaphragm pump
Overview
- outstanding chemical resistance and superior vapor tolerance
- reduced process time due to particularly high pumping speed even near ultimate vacuum
- whisper quiet and very low vibration
- very good ultimate vacuum even with open gas ballast valve for condensate purge
- long diaphragm lifetime, maintenance-free drive system
Ultimate vacuum
2 mbar
Ultimate vacuum with gas ballast
4 mbar
Max. pumping speed 50 Hz
12 m3/h
Cat. No.
20743302
Chemistry diaphragm pump in action
Three-stage chemistry diaphragm pumps are an excellent solution for continuous, oil-free pumping of corrosive gases and vapors and meet the highest requirements. The three-stage design of the eight-cylinder MD 12C NT pump provides the advantageous combination of high pumping speed and very low ultimate vacuum. All internal parts in contact with pumped media are made of chemically resistant fluoroplastics. Well-proven PTFE sandwich diaphragms provide increased reliability and extended operating life. With its gas ballast valve the MD 12C NT is optimally prepared for pumping easily condensable vapors, thanks to the very good ultimate vacuum even with open gas ballast valve also for high boiling solvents. Upgrade kits such as inlet separator (AK) and exhaust vapor condenser (EK) enable a later adaptation to changed process requirements. Eight-cylinder NT pumps features quiet operation with smooth, easy-to-clean surfaces. The high pumping speed of the MD 12C NT reduces the process time and meets the high vacuum requirements, e.g., of parallel processes in vacuum networks. Typical applications are large vacuum ovens and rotary evaporators, for example at pilot plants, mini-plants and kilo laboratories. The MD 12C NT is the particularly powerful base pump for vacuum systems and pumping units with vacuum control. Upgraded with a separator at the inlet the MD 12C NT is well prepared also for rough operating conditions. With a waste vapor emission condenser (available as accessory) at the outlet the pump offers excellent environmental friendliness due to efficient solvent recovery.
für Zoom klicken
Technical data and graphs
| Max. pumping speed 50 Hz | 12 m3/h | Select diagram |
| Max. pumping speed 60 Hz | 7.0 cfm | |
| Ultimate vacuum | 2 mbar / 1.5 torr | |
| Ultimate vacuum with gas ballast | 4 mbar / 3 torr | |
| Number of heads | 8 | |
| Number of stages | 3 | |
| Vacuum controller | 17 | |
| Lower ambient temperature (operation) | 10 °C | |
| Upper ambient temperature (operation) | 40 °C | |
| Lower ambient temperature (storage) | -10 °C | |
| Upper ambient temperature (storage) | 60 °C | |
| Max. back pressure (abs.) | 1.1 bar | |
| Inlet connection | small flange KF DN 25 | |
| Outlet connection | Hose nozzle DN 15 mm | |
| Rated motor power | 0.53 kW | |
| Rated motor speed at 50/60 Hz | 1650 min-1 | |
| Protection class IEC 60529 | IP 40 | |
| Dimension L in mm | 533 mm | |
| Dimension B in mm | 260 mm | |
| Dimension H in mm | 359 mm | |
| Weight | 28.1 kg | |
| Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) | 50 dBA | |
| ATEX conformity | II 3/- G Ex h IIC T3 Gc X Internal Atm. only | |
| NRTL certification | No | |
| Items supplied | Pump completely mounted, ready for use, with manual. | |
| Rated mains voltage range 1 | 200-230 V | |
| Mains frequency 1 | 50-60 Hz |
Equipment
Application examples
Chemistry diaphragm pump in action
Three-stage chemistry diaphragm pumps are an excellent solution for continuous, oil-free pumping of corrosive gases and vapors and meet the highest requirements. The three-stage design of the eight-cylinder MD 12C NT pump provides the advantageous combination of high pumping speed and very low ultimate vacuum. All internal parts in contact with pumped media are made of chemically resistant fluoroplastics. Well-proven PTFE sandwich diaphragms provide increased reliability and extended operating life. With its gas ballast valve the MD 12C NT is optimally prepared for pumping easily condensable vapors, thanks to the very good ultimate vacuum even with open gas ballast valve also for high boiling solvents. Upgrade kits such as inlet separator (AK) and exhaust vapor condenser (EK) enable a later adaptation to changed process requirements. Eight-cylinder NT pumps features quiet operation with smooth, easy-to-clean surfaces. The high pumping speed of the MD 12C NT reduces the process time and meets the high vacuum requirements, e.g., of parallel processes in vacuum networks. Typical applications are large vacuum ovens and rotary evaporators, for example at pilot plants, mini-plants and kilo laboratories. The MD 12C NT is the particularly powerful base pump for vacuum systems and pumping units with vacuum control. Upgraded with a separator at the inlet the MD 12C NT is well prepared also for rough operating conditions. With a waste vapor emission condenser (available as accessory) at the outlet the pump offers excellent environmental friendliness due to efficient solvent recovery.
für Zoom klicken
Technical data and graphs
| Max. pumping speed 50 Hz | 12 m3/h | Select diagram |
| Max. pumping speed 60 Hz | 7.0 cfm | |
| Ultimate vacuum | 2 mbar / 1.5 torr | |
| Ultimate vacuum with gas ballast | 4 mbar / 3 torr | |
| Number of heads | 8 | |
| Number of stages | 3 | |
| Vacuum controller | 17 | |
| Lower ambient temperature (operation) | 10 °C | |
| Upper ambient temperature (operation) | 40 °C | |
| Lower ambient temperature (storage) | -10 °C | |
| Upper ambient temperature (storage) | 60 °C | |
| Max. back pressure (abs.) | 1.1 bar | |
| Inlet connection | small flange KF DN 25 | |
| Outlet connection | Hose nozzle DN 15 mm | |
| Rated motor power | 0.53 kW | |
| Rated motor speed at 50/60 Hz | 1650 min-1 | |
| Protection class IEC 60529 | IP 40 | |
| Dimension L in mm | 533 mm | |
| Dimension B in mm | 260 mm | |
| Dimension H in mm | 359 mm | |
| Weight | 28.1 kg | |
| Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) | 50 dBA | |
| ATEX conformity | II 3/- G Ex h IIC T3 Gc X Internal Atm. only | |
| NRTL certification | No | |
| Items supplied | Pump completely mounted, ready for use, with manual. | |
| Rated mains voltage range 1 | 200-230 V | |
| Mains frequency 1 | 50-60 Hz |
für Zoom klicken
Max. pumping speed 50 Hz
für Zoom klicken
Pump down graph 50 Hz (100 l volume)
Equipment
Application examples
