VACUUBRAND MD 12 NT Diaphragm Pump is a powerful, oil-free vacuum solution engineered for continuous evacuation and pumping of non-aggressive gases. Designed with a robust three-stage, eight-cylinder system, it delivers exceptional performance with a high flow rate, deep ultimate vacuum, and remarkably quiet operation. Ideal for applications in physics, analytics, vacuum ovens, degassing viscous media, exhaust gas analysis, and as a backing pump for large turbomolecular drag pumps.
Key Features:
- Ultimate vacuum of 2 mbar (1.5 Torr) with maximum pumping speed of 7.1 CFM at 60 Hz
- Three-stage, eight-cylinder design provides high throughput and stable vacuum levels
- Oil-free, contamination-free pumping — no back diffusion or oil carryover
- Fabric-reinforced FKM diaphragms for extended lifetime and minimal maintenance
- Exceptionally quiet operation at 50 dBA with low vibration — ideal for sensitive instruments
- Corrosion-resistant flow path of aluminum, stainless steel, and selected plastics
- Compact footprint with smooth, easy-to-clean surfaces
- Reliable choice over rotary vane pumps for many applications
Included with Your Pump
- Power Cord
- Silencer
- Operator’s Manual
- Manufacturer’s Documentation
- 2-Year Manufacturer’s Warranty
Specifications
| Ultimate Vacuum | 2 mbar / 1.5 Torr |
| Max. Pumping Speed (60 Hz) | 7.1 CFM |
| Max. Pumping Speed (50 Hz) | 12.1 m³/h |
| Number of Heads / Stages | 8 / 3 |
| Noise Level | 50 dBA |
| Operating Temp Range | 10 °C to 40 °C |
| Storage Temp Range | -10 °C to 60 °C |
| Max. Back Pressure | 1.1 bar |
| Connections | Inlet: KF DN 25 Outlet: G1/2" |
| Motor Power / Speed | 0.53 kW / 1650 min⁻¹ |
| Protection Class | IP 40 |
| Dimensions (L x W x H) | 554 x 260 x 359 mm |
| Weight | 30.3 kg |
| Voltage / Frequency | 100-120 V / 50-60 Hz |