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Chemistry-design diaphragm pumps are an excellent solution for continuous, oil-free pumping of corrosive gases and vapors. The two-stage construction provides the advantageous combination of high pumping speed and low ultimate vacuum. All parts in contact with pumped media are made of chemically resistant fluoroplastics. Well-proven PTFE sandwich diaphragms increase reliability and extend operating life. The pump MZ 2C NT is equipped with a gas ballast valve for continuous condensate purge increasing the pumping capability of condensable vapors. This pump is our most popular chemistry diaphragm pump, and is the heart of a family of VACUUBRAND pumping systems.
| Max. pumping speed 50 Hz | 2 m3/h |
| Max. pumping speed 60 Hz | 1.4 cfm |
| Ultimate vacuum | 7 mbar / 5 torr |
| Ultimate vacuum with gas ballast | 12 mbar / 9 torr |
| Number of heads | 2 |
| Number of stages | 2 |
| 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 | Hose nozzle DN 8-10 mm |
| Outlet connection | Hose nozzle DN 8-10 mm |
| Rated motor power | 0.18 kW |
| Rated motor speed at 50/60 Hz | 1500/1800 min-1 |
| Protection class IEC 60529 | IP 40 |
| Dimension L in mm | 243 mm |
| Dimension B in mm | 243 mm |
| Dimension H in mm | 198 mm |
| Weight | 11.1 kg |
| Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) | 45 dBA |
| Rated mains voltage range 1 | 100-115 V |
| Rated mains voltage range 2 | 120 V |
| Mains frequency 1 | 50-60 Hz |
| Mains frequency 2 | 60 Hz |
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