MD 12 NTDiaphragm pump
Overview
- contamination-free pumping and evacuation
- high flow rate even near ultimate vacuum
- whisper quiet
- reduced process times
- exceptionally long diaphragm life and maintenance-free drive system for low lifetime costs
Ultimate vacuum
2 mbar
Max. pumping speed 50 Hz
12.1 m3/h
Diaphragm pump in action
The MD 12 NT diaphragm pump is an especially powerful pump for oil-free evacuation and pumping of non aggressive gases. The three-stage design of this eight-cylinder pump provides the advantageous combination of very high pumping speed and excellent ultimate vacuum. The flow path consists of aluminium, stainless steel and carefully selected plastics to permit a wide range of applications. The fabric-reinforced double diaphragms are made of highly flexible FKM for extended operating life and high vacuum performance. Eight-cylinder NT pumps feature quiet operation, with smooth and easy-to-clean surfaces. Like all VACUUBRAND diaphragm pumps they operate absolutely oil-free and do not have any sliding components in the gas path. In normal operation they are completely free of abrasion. This eliminates most of the particulate impurities frequently generated inside of scroll or piston pumps. The MD 12 NT is an excellent choice for continuous, oil-free evacuation and pumping of non-aggressive gases especially for applications in physics and analytics. Due to the very good ultimate vacuum the MD 12 NT is often used as an alternative to rotary vane pumps, for example for vacuum ovens, for very quick and efficient degassing of viscous media, exhaust gas analytics and especially as backing pump for large turbomolecular drag pumps. The particularly high pumping speed enables the usage at bigger vacuum apparatus and with high gas throughput. The pump is extraordinarily silent and exhibits very low vibration making it an excellent choice on sensitive equipment such as electron microscopes. Back diffusion of oil or even oil back flow, e.g., into a high vacuum chamber is excluded due to its oil-free operation.
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Technical data and graphs
| Max. pumping speed 50 Hz | 12.1 m3/h | Select diagram |
| Max. pumping speed 60 Hz | 7.1 cfm | Select diagram |
| Ultimate vacuum | 2 mbar / 1.5 torr | |
| Number of heads | 8 | |
| Number of stages | 3 | |
| 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 | G1/2" | |
| 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 | 554 mm | |
| Dimension B in mm | 260 mm | |
| Dimension H in mm | 359 mm | |
| Weight | 30.2 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, silencer, with manual. | |
| Rated mains voltage range 1 | 200-230 V | |
| Mains frequency 1 | 50-60 Hz |
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Max. pumping speed 50 Hz
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Max. pumping speed 60 Hz
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Pump down graph 50 Hz (100 l volume)
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Pump down graph 60 Hz (100 l volume)
Equipment
Application examples
Diaphragm pump in action
The MD 12 NT diaphragm pump is an especially powerful pump for oil-free evacuation and pumping of non aggressive gases. The three-stage design of this eight-cylinder pump provides the advantageous combination of very high pumping speed and excellent ultimate vacuum. The flow path consists of aluminium, stainless steel and carefully selected plastics to permit a wide range of applications. The fabric-reinforced double diaphragms are made of highly flexible FKM for extended operating life and high vacuum performance. Eight-cylinder NT pumps feature quiet operation, with smooth and easy-to-clean surfaces. Like all VACUUBRAND diaphragm pumps they operate absolutely oil-free and do not have any sliding components in the gas path. In normal operation they are completely free of abrasion. This eliminates most of the particulate impurities frequently generated inside of scroll or piston pumps. The MD 12 NT is an excellent choice for continuous, oil-free evacuation and pumping of non-aggressive gases especially for applications in physics and analytics. Due to the very good ultimate vacuum the MD 12 NT is often used as an alternative to rotary vane pumps, for example for vacuum ovens, for very quick and efficient degassing of viscous media, exhaust gas analytics and especially as backing pump for large turbomolecular drag pumps. The particularly high pumping speed enables the usage at bigger vacuum apparatus and with high gas throughput. The pump is extraordinarily silent and exhibits very low vibration making it an excellent choice on sensitive equipment such as electron microscopes. Back diffusion of oil or even oil back flow, e.g., into a high vacuum chamber is excluded due to its oil-free operation.
für Zoom klicken
Technical data and graphs
| Max. pumping speed 50 Hz | 12.1 m3/h | Select diagram |
| Max. pumping speed 60 Hz | 7.1 cfm | Select diagram |
| Ultimate vacuum | 2 mbar / 1.5 torr | |
| Number of heads | 8 | |
| Number of stages | 3 | |
| 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 | G1/2" | |
| 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 | 554 mm | |
| Dimension B in mm | 260 mm | |
| Dimension H in mm | 359 mm | |
| Weight | 30.2 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, silencer, 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
Max. pumping speed 60 Hz
für Zoom klicken
Pump down graph 50 Hz (100 l volume)
für Zoom klicken
Pump down graph 60 Hz (100 l volume)
Equipment
Application examples
