Pfeiffer - Diaphragm Vacuum Pump
Diaphragm vacuum pumps generate vacuum by moving a flexible membrane, known as a diaphragm, up and down. Additionally, this diaphragm also hermetically seals the compression chamber from the motor, preventing the pumped medium from being contaminated by the gear oil. Thanks to their compactness, diaphragm vacuum pumps are ideal for integration into smaller analytical systems like leak detectors or mass spectrometers and as backing pumps for turbomolecular vacuum pumps .
Types of diaphragm vacuum pumps
Diaphragm pumps from Pfeiffer generate dry, contamination-free vacuum. They come with two, three, or four stages. Models with fewer stages provide higher pumping speeds for faster evacuation. Those with more stages achieve lower ultimate pressures because each additional stage compresses the pumped medium further, allowing the pump to generate higher vacuum levels.
Additionally, some diaphragm vacuum pumps from Pfeiffer are available withdirect current (DC) motors. These motor versions consume over 80% less energy than the drive units of standard diaphragm vacuum pump models.
Diaphragm vacuum pumps are suitable for a wide range of industrial applications, like coating, vacuum filtration, or vacuum distillation . Their compact design and dry, contamination-free compression make them ideal as backing pumps for turbomolecular vacuum pumps or for integration into analytical systems such as mass spectrometers . Versions with carbon-reinforced special diaphragms and corrosion-resistant housing are available for pumping corrosive gases, for example in coating processes.
Each industry and application has unique requirements. To determine the most suitable vacuum solution for your specific needs, contact our experts.
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