Typical applications for chemistry diaphragm pumps include evacuating chemically aggressive gases and vapors from such equipment as rotary evaporators, vacuum drying cabinets and centrifugal concentrators. Chemistry diaphragm pumps from VACUUBRAND have uncompromising chemistry designs: Due to fluorocompounds they are very resistant to chemical vapors from inlet to exhaust, and are very tolerant of condensate. Our two-, three- and four-stage pumps also have a gas ballast valve that helps to preserve pump performance when working with condensable vapors. Pumping chambers are hermetically separated from the drive space, ensuring long lifetimes of mechanical parts. Most importantly, diaphragm pumps are oil-free, for vastly reduced service demands compared with oil-sealed pumps. They eliminate the water waste of water-jet aspirators, and the contaminated waste-oil disposal of rotary vane pumps.

Chemistry vacuum system MZ 2C NT +AK+EK
The separator at the inlet (AK), made of glass with protective coating, retains particles and liquid droplets. The waste vapor condenser at the outlet (EK) is highly efficient and compact. The condenser enables near-100-percent solvent recovery, efficient recycling, and active protection of the environment.

Chemistry vacuum system MZ 2C NT +AK SYNCHRO+EK
This chemistry vacuum system provides the simultaneous operation of two processes with only one pump.

Chemistry pumping unit PC 510 NT
The pumping units are equipped with a CVC 3000 vacuum controller with a solenoid valve for electronic vacuum control.

Chemistry pumping unit PC 511 NT
The PC 511 NT is equipped with an additional manually controlled vacuum port. Check valves help to protect against cross-contamination and interference, permitting simultaneous operation of two vacuum applications with one pump.

Chemistry pumping unit PC 520 NT
This chemistry vacuum pumping unit is an economic space-saving solution for simultaneous operation of two independent vacuum applications with one single pump.

VARIO® chemistry pumping unit PC 3003 VARIO und PC 3001 VARIOpro
VARIO chemistry pumping units provide vacuum control by precise and continuous adaptation of the diaphragm pump's motor speed. The integrated vacuum controller is able to perform fully automatic evaporations with the push of a button. The pump’s variable motor speed responds to demand, reducing energy waste and mechanical wear, ensuring unrivalled service life for the diaphragms.