Diaphragm pumps

• Improved performance, increased pumping speed (up to 16 m³/h) and better ultimate vacuum (up to 0.3 mbar). Extend applications with non-aggressive gases whether used in the laboratory or for industrial processes
• Very low leak rate due to enhanced leak-tight tubing connections, resulting in consistent performance characteristics - even after many years of operation. Ideal for analytical applications
• Long diaphragm and valve lifetimes: made of highly flexible FPM, with fabric-reinforced double diaphragms for improved long term stability
• Very quiet and ultra low vibration due to compact drive with patented motor drive system. Ideal as a built-in component for sensitive analytical equipment
• Easy to clean due to smooth surfaces. A robust solution for numerous applications in industrial environments

• Application: Degassing, Gel drying, Rotary evaporation, Distillation
• Flow rate 1.26 m³/h / Ultimate vacuum 2 mbar abs.
• High suction speed, particularly in the low vacuum range
• Integrated rotational speed control enables pumping capacity to be easily adapted manually to process requirements
• PPS pump head combined with PTFE-coated diaphragm are ideal for aggressive/corrosive gases and vapors
• Integrated gas ballast valve

• Application: Rotary evaporation, Distillation, Vacuum oven, Centrifugal concentration
• Flow rate up to 2.04 m³/h / Ultimate vacuum 10 mbar abs.
• Integrated KNF self-drying system ensures that condensate is quickly removed from the pump heads without the vacuum being altered. This significantly reduces process time and preserves the pump heads.
• Chemically resistant and thus ideal for use with extremely aggressive/corrosive gases and vapors

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• Application: Transferring liquids
• Self priming, dry running and maintenance free
• Pump heads available in your choice of PP (Typ KT), PVDF (Typ TT) or PTFE (Typ FT), diaphragms available in PTFE, valves in FFKM
• Flow rate can either be set manually (Version S) or both manually and via an external control device (Version RC)

The two-stage pump is designed for pumping and compressing gases and vapours and generate vacuum e.g. for rotary evaporators, vacuum ovens and gel dryers. Their electrical conductivity prevents electrostatic charging and minimizes the risk of the gas mixture igniting inside the pump.

• For tubes with ID = 8 mm
• Chemically resistant
• Resistant to aggressive solvents and acid vapours
• Elastomer diaphragms with PTFE layer
• Pump and connection heads are carbon fibre reinforced
• Integrated motor protection switch
• Vibration isolating feet

The laboratory vacuum pump for the filtration of samples in microbiology. During the vacuum filtration, the filtrate is directly discharged to the drain.

• Transmembranous pressure of less than 700 mbar, acc. ISO 8199
• Constant flow rates
• Defined maximum vacuum
• Suitable for gases and liquids

Sturdy, economical diaphragm pumps with high pressure output. Variable adjustment....

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For safe and comfortable aspiration of liquid supernatants in cell culture. Increases work safety when handling with infectious material. Self-locking fittings close the bottle automatically and seal it hermetically for transport.

• Completely autoclavable
• Breakproof and chemical-resistant safety bottle
• Safety filter between bottle and pump prevents contamination and premature wear
• A commercial Pasteur pipette is used for aspiration (available separately)