The Welch DryFast Ultra 2042B-01 is a chemically resistant, oil-free diaphragm vacuum pump designed for precise, mid-range vacuum applications. Its quiet operation, compact design, and minimal maintenance make it an ideal choice for rotary evaporators, vacuum ovens, and concentrators.
Key Features:
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Flow Rate: Up to 70 L/min
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Vacuum Range: 2 to 79 Torr
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Voltage: 115V, 60Hz
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Quiet, compact, and portable
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PTFE/fluorinated contact surfaces for superior chemical resistance
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Advanced Vapor Management for precise vacuum control
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2-head diaphragm design for improved performance and reduced maintenance
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Standard ¼ in. ID tubing connection
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CSA and CE certified
Recommended Applications:
| Application Type | Model Suggestions |
|---|---|
| Rotary Evaporation ≤ 40°C B.P. | 2014B-01, 2032B-01, 2042B-01 |
| Rotary Evaporation ≤ 100°C B.P. | 2034B-01, 2044B-01 |
| Vacuum Filtration (up to 2 funnels) | 2014B-01 |
| Vacuum Filtration (up to 6 funnels) | 2037B-01, 2047B-01 |
| Vacuum Ovens ≤ 1.5 ft³ | 2042B-01 |
| Vacuum Ovens ≤ 4.5 ft³ | 2047B-01 |
Specifications
| 0.2 hp | |
| 11.3 kg | |
| CE, CSA | |
| PTFE (Pump Head), Perfluoroelastomer | |
| 21.25 lb. | |
| 60 Hz | |
| 22.3 cm | |
| 35.2 cm | |
| 35 L/min. | |
| 2 torr |
| 25 lb. | |
| Pump, 6 ft powercord and plug (115V US standard) | |
| 115 V 60 Hz | |
| 2042 | |
| 9.6 kg | |
| 8.8 in. | |
| 13.8 in. | |
| 6.8 in. | |
| Rotary Evaporation | |
| 115 V |