Welch 2.3 CFM 65 L/min Oil-Free Wob-l Pump 2563
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Manufacturer: Welch Pumps
Welch 2.3 CFM 65 L/min Oil-Free Wob-l Pump 2563
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*Note: Standard-duty dry pumps are not recommended for pumping organic, acidic, or basic vapors.
Welch WOB-L pumps are oil-free for reduced maintenance. These WOB-L piston pumps have a high water vapor tolerance. 2522, 2534, 2546, and 2511 WOB-L pumps deliver both vacuum and pressure.
The Welch 2563 is a WOB-L oil-free piston pump that moves 65 L/min (2.3 cfm) and pulls down to about 5 Torr. With no oil in the pump there is nothing to change, top up or dispose of, and no oil mist to vent from the bench.
It is a standard-duty pump, so it belongs on clean, non-corrosive jobs: vacuum filtration, aspiration, degassing of water-based samples and general bench vacuum. Its tolerance for water vapour makes it a good partner for aqueous work. For solvent recovery or acid and base vapours, choose a PTFE chemical-duty diaphragm pump instead.
At 16.7 lb it is easy to move between benches, and the 1/4 inch (7 mm) tubing size suits standard lab hose.
Ultimate Pressure | 5 Torr (6.7 mbar) |
Dimensions, LxWxH, mm | 440x170x270 |
Free Air Displacement | 2.3(65) |
Motor Power, HP (kW) at 60Hz | 1/3(0.25) |
Exhaust Connection | NW16 |
Weight (lbs) | 16.7 |
| Tubing Needed, I.D. in. (mm) | 1/4(7) |
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