Welch Direct-Drive High-Vacuum Pumps: Model 8912
Compact, portable, two-stage direct-drive pumps suitable for vacuum ovens, freeze dryers, concentrators, and chambers
Manufacturer: Welch 8912A
All models are an efficient two-stage design for continuous high vacuum operation. Use gas ballast valve to prevent condensation of vapors and to remove water vapor contamination from oil reservoir. Not for continuous operation at pressures above 10 torr.
- Available in pumping ranges of 1.8 to 11.3cfm (51 to 320L/min.)
- Ultimate pressure to 1 x 10-4 torr (based on model)
- Aluminum UNIBARB style inlet connector accepts two sets of tubing I.D. (3/16 to 13/16 in. [5 to 20mm]) and has a screen
- Outlet connector has a 1-20 thread (Model 8905A has a 3/4-20 outlet connector thread)
Include integral isolation valve to prevent oil and air contamination of the system in the event of a power failure.
115V models are CSA certified; 230V models are available online or contact your Fisher Scientific Customer Service Rep
|1 x 10-4 torr|
|Line cord, switch, plug and vacuum Oil, integral isolation valve|
|18.5 x 6.5 x 9.62 in. (47.1 x 16.5 x 24.3 cm)|
|50 dB (A)|
|Vacuum ovens, freeze dryers, concentrators and chambers|
|Direct-Drive High-Vacuum Pump|
|115 V 60 Hz|
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