How to select a pump for rotary evaporation

28 Apr 2022

Methylene chloride and pentane, do not require as deep of an end vacuum to evaporate as solvents such as acetonitrile, benzene, and chloroform. The removal of solvents with high boiling points, such as water, DMSO, DMF, and toluene requires a relatively deep end vacuum. You must ensure that the pump is capable of reaching an end vacuum deep enough to remove the target solvents efficiently. Download this application note to find the answers to four key questions when selecting a pump.

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SC920G Vacuum Pump System
KNF Neuberger, Inc.
Compact, portable adaptive vacuum system with chemically resistant diaphragm pump, separator, condenser, and vacuum controller. Ideal for rotary evaporation and other applications where control of vacuum level is important.
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N820G/SR/SH Vacuum Pump and Systems
KNF Neuberger, Inc.
Chemically resistant, compact, and oil-free diaphragm vacuum pump with manual speed control for adjusting the pump capacity to your specific application. It features a gas ballast, PTFE/TFM heads, PTFE-coated diaphragms, and FFPM valves. Suitable for a wide range of Laboratory applications including extremely aggressive/corrosive gasses and vapors. These pumps are expandable, separators and/or condensers can be purchased individually at any time and easily fitted.
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LABOPORT® Vacuum Pumps
KNF Neuberger, Inc.
The chemically resistant LABOPORT diaphragm pumps are single-head and double-head dry-running devices used in a wide range of laboratory applications. They transfer and pump down without contamination. The heart of these very compact pumps is a KNF structured diaphragm. As a result, we were able to make the pumps smaller while increasing the service life of the diaphragm. The pumps are available with various flow path material options, flow rates, and ultimate vacuum levels.
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N840G/SR/SH Vacuum Pump and Systems
KNF Neuberger, Inc.
Chemically resistant, compact, and oil-free diaphragm vacuum pump with manual speed control for adjusting the pump capacity to your specific application. It features a gas ballast, PTFE/TFM heads, PTFE-coated diaphragms, and FFPM valves. Suitable for a wide range of Laboratory applications including extremely aggressive/corrosive gasses and vapors. These pumps are expandable, separators and/or condensers can be purchased individually at any time and easily fitted.
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