Description
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, due to the 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.
Performance features:
- 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
| Specifications | ||
|---|---|---|
| Number of heads / stages | 8 / 3 | |
| Max. pumping speed at 50/60 Hz | m3/h | 12.0 / 13.3 |
| Max. pumping speed at 50/60 Hz | cfm | 7.1 / 7.8 |
| Ultimate vacuum (abs.) | mbar/torr | 2 / 1.5 |
| Ultim. vac. (abs.) with gas ballast | mbar/torr | 4 / 3 |
| 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 | 0.44 |
| Rated motor speed at 50/60 Hz | min-1 | 1500/1800 |
| Degree of protection | IP 40 | |
| Dimensions (L x W x H) | mm | 533 x 260 x 359 |
| Weight | kg | 28.1 |
| Noise level at 50 Hz, typ. | dBA | 52 |
| ATEX conformity (only 230V) | II 3/- G IIC T3 X Internal Atm. only | |
| Items supplied | Pump completely mounted, ready for use, with manual. | |
| Accessories |
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