Welch High Capacity 7.8 CFM 56 Torr Diaphragm Pump 2067
Reference:
Manufacturer: Welch Pumps
Welch Chemical Duty vacuum pumps use dry, oil-free membrane (diaphragm) technology to deliver faster pumping dynamics that support filtration, evaporation, drying, degassing, impregnation, and other rough vacuum applications.
Note: Government regulations require Welch to obtain an end-user certificate for this product if either used or exported outside of the United States.
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- Pumping and compressing neutral and aggressive gases and vapours.
- Generating a vacuum down to an ultimate pressure 75 mbar.
- Use in physical and chemical laboratories in trade and industry.
- Use for vacuum filtration, vacuum distillation and vacuum drying, and other vacuum technology applications.
The Welch 2067 is a very high-flow, oil-free chemical-duty diaphragm pump. It moves 221 L/min (7.8 cfm), enough to run a lab vacuum network: depending on piping runs, one pump can serve over 20 nozzles.
It trades depth for flow, with an ultimate of 56 Torr, so it shines in vacuum filtration, multi-user lines, solvent drying and large-volume work rather than deep vacuum distillation. The PTFE diaphragm design handles aggressive solvents and corrosive vapours.
- Dry operation: no oil, no oil mist, no contamination
- Quiet running for a pump of this size
- Infrequent, simple diaphragm maintenance
| Item | Welch High Capacity Diaphragm Pump 2067 |
| Free Air Displacement @ 60 Hz, cfm (L/min) | 7.8 (221) |
| Ultimate Pressure, torr | 56 |
| Motor Power, HP (kW) at 60 Hz | 0.5/0.6 (0.37/0.44) |
| Inlet (Exhaust) Connection Thread NPT | NW16 - 1/4" NPT |
| Tubing Needed, I.D. in. (mm) | Hose Connector Available |
| Weight, lbs (kg) | 72.3 (32.8) |
| Dimensions, LxWxH, in (mm) | 21x11x12 (530x280x310) |
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