MD 4CRL NT
BrandTech Scientific
MD 4CRL NT
SKU: 20736445
Contact for pricing
MD 4CRL NT. For applications requiring an especially high leak tightness of the pump, we recommend the MD 4CRL NT. The three-stage construction provides the…
For applications requiring an especially high leak tightness of the pump, we recommend the MD 4CRL NT. The three-stage construction provides the advantageous combination of high pumping speed and very low ultimate vacuum. All major parts of the MD 4CRL NT in contact with pumped media are made of chemically resistant fluoroplastics or a special, highly corrosion-resistant stainless steel. Well-proven PTFE sandwich diaphragms provide increased reliability and extended operating life. Every single pump is tested for an integral leakage rate of 0.001 mbar l/s.
Key Features
Specifications
| Weight | 19.8 kg |
| Manufacturer | BRAND (BrandTech Scientific) |
| Items supplied | Pump completely mounted, ready for use, with manual. |
| Protection class IEC 60529 | IP 40 |
| Upper ambient temperature (operation) | 40 °C |
| Lower ambient temperature (operation) | 10 °C |
| Dimension B in mm | 243 mm |
| Max. pumping speed 50 Hz | 3.4 m 3 /h |
| Max. pumping speed 60 Hz | 2.2 cfm |
| Ultimate vacuum | 1.5 mbar / 1.1 torr |
| Number of heads | 4 |
| Number of stages | 3 |
| 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 16 |
| Outlet connection | small flange KF DN 16 |
| Rated motor power | 0.25 kW |
| Rated motor speed at 50/60 Hz | 1500/1800 min -1 |
| Dimension L in mm | 325 mm |
| Dimension H in mm | 198 mm |
| Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) | 45 dBA |
| ATEX conformity | II 3/- G Ex h IIC T3 Gc X Internal Atm. only |
| NRTL certification | Yes |
| Rated mains voltage range 1 | 200-230 V |
| Mains frequency 1 | 50-60 Hz |
| Rated mains voltage range 2 | 100-115 V |
| Rated mains voltage range 3 | 120 V |
| Mains frequency 2 | 50-60 Hz |
| Mains frequency 3 | 60 Hz |